Genral Network Error On .net Framework 1.1 Using System.data.sqlclient In Asp .net
Feb 24, 2006
hi i am using asp .net 1.1
i have deployed my application on server where sql server 2005 exists but if i try to connect to sql server from my development machine then it is not connecting and gives me error when
conn.open()
in my sql server it is windows authentication.
the error is general network error check network docs.
i have tried timeout=0 and pooling=false
but neither works please answer.
what should my connection string.
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May 23, 2007
As you all know, in Framework 2.0 on the desktop platform you have the convenient "abstract" Db* classes that can be used to write more generic code. For instance System.Data.SqlClient.SqlConnection inherits from System.Data.Common.DbConnection, and so forth. Now the docs clearly say that this applies to the corresponding classes in the Compact Framework. And i have seen this implied by other web searchs I've done. However this does not seem to be the case -- or, I'm missing something somewhere.
The following simple code on the desktop platform compiles OK:
using System.Data;
using System.Data.Common;
using System.Data.SqlClient;
DbConnection conn = new SqlConnection();
However it doesn't compile in a compact framework project: "Cannot implicitly convert type 'System.Data.SqlClient.SqlConnection' to 'System.Data.Common.DbConnection'".
Reflector also indicates that the Compact Framework class doesn't inherit from DbConnection.
OK, so am I missing something here, or what was the reason that Microsoft did it differently??
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Nov 25, 2007
System.Data.SqlClient.SqlError: Cannot open backup device '\.Tape0'. Operating system error 5(error not found). (Microsoft.SqlServer.express.Smo)
i have only one sql instance and tape is istalled successfully.
please help me to find solution for this error.
Thanks,
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Aug 21, 2006
I have created a windows library control that accesses a local sql database
I tried the following strings for connecting
Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Trusted_Connection = true"
Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Integrated Security=SSPI"
I am not running the webpage in a virtual directory but in
C:Inetpubwwwrootusercontrol
and I have a simple index.html that tries to read from an sql db but throws
the error
System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.PermissionSet.Demand()
at System.Data.Common.DbConnectionOptions.DemandPermission()
at System.Data.SqlClient.SqlConnection.PermissionDemand()
at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection,
etc etc
The action that failed was:
Demand
The type of the first permission that failed was:
System.Data.SqlClient.SqlClientPermission
The Zone of the assembly that failed was:
Trusted
I looked into the .net config utility but it says unrestricted and I tried adding it to the trusted internet zones in ie options security
I think that a windows form connecting to a sql database running in a webpage should be simple
to configure what am I missing?
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May 15, 2007
Hello,
we have asp.net apps on a windows 2003 server that connect to an instance of sql server 2005 enterprise edition on another windows 2003 server. We get this error at random times. Anyone know what could be causing it?
System.Web.HttpUnhandledException: Exception of type System.Web.HttpUnhandledException was thrown. ---> System.Data.SqlClient.SqlException: SSL Security error. at System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction) at System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction) at System.Data.SqlClient.SqlConnection.Open()Thanks
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May 1, 2008
Hi there, i copied some insert code from one page to another and it keeps throwing me this error, i was wondering if anyone can help me out. Here is the error
System.Data.SqlClient.SqlException: The name "Credit" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Admin_expenses.Button1_Click(Object sender, EventArgs e) in d:hostingmemberashdfhtdocswwwAdminexpenses.aspx.cs:line 40
This is my code, i cant see anything obvious and as i said i just copied it across, the only things changed were the names and the sqlstringprotected void Button1_Click(object sender, EventArgs e)
{decimal intamount = Convert.ToDecimal(txtAmount.Text);
string sConnectionStringExpense = "Data Source=xxxx;Initial Catalog=xxxx;User ID=xxxx;Password=xxxx";SqlConnection objConnExpense = new SqlConnection(sConnectionStringExpense);
using (objConnExpense)
{
objConnExpense.Open();string sqlExpense = "INSERT INTO tbl_expenses (expense_amount, expense_payment_type, expense_type, expense_description) " +
"VALUES (" + intamount + "," + ddlPaymentType.SelectedItem + "," + ddlExpenseType.SelectedValue + "," + txtDescription.Text + ")";SqlCommand objCmdExpense = new SqlCommand(sqlExpense, objConnExpense);
try
{
objCmdExpense.ExecuteNonQuery();
}catch (Exception ex)
{lblcomplete.Text = "!!Adjust stock for product at location " + Convert.ToString(ex);
}
finally
{
objConnExpense.Close();
}
}
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May 15, 2007
Hello,
we have asp.net apps on a windows 2003 server that connect to an instance of sql server 2005 enterprise edition on another windows 2003 server. We get this error at random times. Anyone know what could be causing it?
System.Web.HttpUnhandledException: Exception of type System.Web.HttpUnhandledException was thrown. ---> System.Data.SqlClient.SqlException: SSL Security error.
at System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnection.Open()
Thanks
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Aug 31, 2004
Hi There,
I'm using C# to get a value for a DOUBLE precision variable, called "Length", from a textBox using the following line:
Length = Convert.ToDouble( txtLength.Text )
I'm also using the following lines to prepare my stored procedure call:
arParms[9] = new SqlParameter("@Length", SqlDbType.Decimal, 5);
arParms[9].Value = record.Length;
My stored procedure has the following parameter definition:
@Length decimal(9,3)
My problem is that if someone types a value bigger than 999999 in the textbox he will get for sure the following error:
System.Data.SqlClient.SqlException: Error converting data type numeric to decimal.
I don't know how to either make sql or C# to truncate the value or catch the exception to automatically assign 0 to the parameter.
Please Help.
Moshe
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Aug 31, 2006
I am using a stored procedure which returns a value of charecter datatype 'V' to the calling program.I am getting an sql exception System.Data.SqlClient.SqlException: Syntax error converting the varchar value 'V' to a column of data type inti didnot define any int datatype in my tablethis is my codeSqlCommand com = new SqlCommand("StoredProcedure4", connection);com.CommandType = CommandType.StoredProcedure; SqlParameter p1 = com.Parameters.Add("@uname", SqlDbType.NVarChar);SqlParameter p2 = com.Parameters.Add("@opwd", SqlDbType.NVarChar);SqlParameter p3 = com.Parameters.Add("@role", SqlDbType.NVarChar);p3.Direction = ParameterDirection.ReturnValue;p1.Value = username.Text.Trim();p2.Value = password.Text.Trim();com.ExecuteReader();lblerror2.Text = (string)(com.Parameters["@role"].Value); can your figure out what is the error ? Is it a coding error or error of the databse
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Apr 8, 2008
Hi,
I am getting an time out expired error while import dbf files to the database.. In this upload one file had 379 records.. and it inserts it into the few tables and then i get the above error..in my event viewer.
Error: System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
No Changes made to the Plan table.
Inserting records(s) in Plan table.
No Changes made to Plan table.
Updating changes to PlanStatementInfo.
Updated 1 record(s) in PlanStatementInfo.
Inserting new records into PlanStatementInfo.
No new records were added to PlanStatementInfo.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(SqlConnection connection, CommandType commandType, String commandText, SqlParameter[] commandParameters)
at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters)
at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, String spName, Object[] parameterValues)
at icc.BaseClasses.DL.DLImportPlan.Import(Int32 ClientId, Int32 PeriodId, Int32 UserId) in C:Documents and SettingsMy DocumentsPlanStatementsImportDLDLImportPlan.cs:line 116
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.cs:line 116 --this is where i am calling my sproc...
any help will will appreciated
Thanks,
Karen
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Mar 27, 2008
Is it possible to connect to an Access database on my local drive, or does it have to an SQL database? Here is the error I am getting:
Server Error in ' 'Application.
An error has occurred while establishing a connection to the server.
When connecting to SQL Server 2005, this failure may be caused by the fact that
under the default settings SQL Server does not allow remote connections.
(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance
Specified) Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code. Exception Details:
System.Data.SqlClient.SqlException: An error has occurred while establishing
a connection to the server. When connecting to SQL Server 2005, this failure
may be caused by the fact that under the default settings SQL Server does not
allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error
Locating Server/Instance Specified)Source Error:
Line 19: Dim ConString As String = ("Data Source=C:Inetpubwwwrootmessage.mdb")Line 20: Dim myDataAdapter As New SqlDataAdapter(SQLStatement.Text, ConString)Line 21: myDataAdapter.Fill(myDataSet, "tblMessage")Line 22: myDataGrid.DataSource = myDataSet.Tables("tblMessage")Line 23: myDataGrid.DataBind()
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Mar 12, 2008
I created a .net console application within which I connect to a sql server (not local) as follows,
string conn_str = "Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=QuantEquitySql;Data Source=server name";
SqlConnection conn = new SqlConnection(conn_str);
conn.Open();
.
Everything works fine when I run it from my computer. When I try to run it from a network share I get the following error,
Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
I am using Visual Studio 2005 and .Net framwork v2.0.50727.
Does anybody know a fix to this problem?
Thanks
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Jun 20, 2007
I have a report that uses some embedded custom code. The embedded custom code is a function that execute some sql query on a sql server database.Everything works fine in Visual studio. The report gets deployed on the server successfully, however when running the report from report manager i get the following error message :
The Hidden expression for the table €˜table1€™ contains an error: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Here is the code :
************************************************************************
Public function get_field() as string
Dim myConnection As System.Data.SqlClient.SqlConnection
Dim myCommand As System.Data.SqlClient.SqlCommand
Dim data_reader As System.Data.SqlClient.SqlDataReader
Dim field(100) as string
Dim i as integer
Dim j as integer
Dim sql_field as string
Dim nbr_field as integer
Dim rtn_string as string
i = 0
sql_field ="Select field from mytable"
myConnection = New System.Data.SqlClient.SqlConnection("Datasource=xxx.xxx.xxx.xxmydatabase;Initial Catalog=mydatabase;User Id=user1;Password=password1;")
myConnection.Open()
myCommand = New System.Data.SqlClient.SqlCommand(sql_field, myConnection)
data_reader = myCommand.ExecuteReader()
While data_reader.Read()
if data_reader.HasRows then
field(i)= data_reader(0).ToString()
end if
nbr_field = nbr_field + 1
i= i+1
End While
data_reader.Close()
myConnection.Close()
for j = 0 to nbr_field -1
rtn_string = rtn_string + field(j) + ","
Next j
rtn_string = left(rtn_string,rtn_string.length-1)
return rtn_string
'return sql_cmd
'return yes_no
'return lkupfield
end function
******************************************************************
Why do i get the error message ?, is this related to Code Access Security issues with .net framework. if yes
how do i set the Security so the report server or report manager allows embedded custom code to be executed. Any advice ?
Chi
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Jan 18, 2008
Hi,
I've written this code multiple times now. But for the first time i get an error at the line underlined. My procedure runs perfectly when i execute it through Sql Query analyzer.
plzz help.. Its urgent and am unable to find the reason for this error "A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in system.data.dll"
Thanks !SqlConnection conn = new SqlConnection(DbConnectionString);
conn.Open();
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "dbo.rqryTradesPRR";
cmd.Parameters.Add("@COBDate",SqlDbType.DateTime).Value = "2002-10-31 00:00:00.000" ;
SqlDataReader reader = cmd.ExecuteReader();
while(reader.Read())
{
// have written something here
}
Thanks in advance !
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Sep 21, 2006
Hi,I'm new to ASP.NET, and am currently looking into XML.I'm trying to write XML using data from an SQL Server 2000 table. But I seem to be getting the following error regarding the SQL Server connection:Compiler Error Message: CS1502: The best overloaded method match for 'System.Data.SqlClient.SqlCommand.SqlCommand(string, System.Data.SqlClient.SqlConnection)' has some invalid argumentsSource Error:Line 23: {
Line 24: SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
Line 25: mySqlDataAdapter.SelectCommand = new SqlCommand(queryString, connString);
Line 26: mySqlDataAdapter.Fill(myDataSet);
Line 27: return myDataSet;Source File: c:InetpubwwwrootmappingcreateGeoRSSFile.aspx.cs Line: 25 This is my code:using System;
using System.Data;
using System.Data.SqlClient ;
using System.Configuration;
using System.Collections;
using System.Text;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml;
public partial class createGeoRSSFile : System.Web.UI.Page
{
protected void Page_Load(object sender, DataSet myDataSet, EventArgs e)
{
string connString = "server=SQLSERV1;database=Historical_Statistics;UID=dbuser;PWD=Password";
string queryString = "SELECT Town, PostCode, Latitude, Longitude FROM UKPostCodes";
using (SqlConnection mySqlConnection = new SqlConnection(connString))
{
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = new SqlCommand(queryString, connString);
mySqlDataAdapter.Fill(myDataSet);
return myDataSet;
}
// Create a new XmlTextWriter instance
XmlTextWriter writer = new XmlTextWriter(Response.OutputStream, Encoding.Unicode);
// Start writing!
writer.WriteStartDocument();
writer.WriteStartElement("item");
// Creating the <town> element
writer.WriteStartElement("town");
writer.WriteElementString("PostCode",myDataSet .Tables[1].Columns("PostCode"));
writer.WriteElementString("geo:lat",myDataSet.Tables[1].Columns("Latitude"));
writer.WriteElementString("geo:lon", myDataSet.Tables[1].Columns("Longitude"));
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Flush();
writer.Close();
}
}What seems to be causing this error?Thanks.
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May 17, 2006
Dear all,
I am stuck with a SSIS package and I can€™t work out. Let me know what steps are the correct in order to solve this.
At first I have just a Flat File Source and then Script Component, nothing else.
Error:
[Script Component [516]] Error: System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to class type 'System.Data.SqlClient.SqlConnection'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface. at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.HandleUserException(Exception e) at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.AcquireConnections(Object transaction) at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostAcquireConnections(IDTSManagedComponentWrapper90 wrapper, Object transaction)
Script Code (from Script Component):
' Microsoft SQL Server Integration Services user script component
' This is your new script component in Microsoft Visual Basic .NET
' ScriptMain is the entrypoint class for script components
Imports System
Imports System.Data.SqlClient
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain
Inherits UserComponent
Dim nDTS As IDTSConnectionManager90
Dim sqlConnecta As SqlConnection
Dim sqlComm As SqlCommand
Dim sqlParam As SqlParameter
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
Dim valorColumna As String
Dim valorColumna10 As Double
valorColumna = Row.Column9.Substring(1, 1)
If valorColumna = "N" Then
valorColumna10 = -1 * CDbl(Row.Column10 / 100)
Else
valorColumna10 = CDbl(Row.Column10 / 100)
End If
Me.Output0Buffer.PORCRETEN = CDbl(Row.Column11 / 100)
Me.Output0Buffer.IMPRETEN = CDbl(Row.Column12 / 100)
Me.Output0Buffer.EJERCICIO = CInt(Row.Column2)
Me.Output0Buffer.CODPROV = CInt(Row.Column7)
Me.Output0Buffer.MODALIDAD = CInt(Row.Column8)
Me.Output0Buffer.NIFPERC = CStr(Row.Column3)
Me.Output0Buffer.NIFREP = CStr(Row.Column4)
Me.Output0Buffer.NOMBRE = CStr(Row.Column6)
Me.Output0Buffer.EJERDEV = CDbl(Row.Column13)
With sqlComm
.Parameters("@Ejercicio").Value = CInt(Row.Column2)
.Parameters("@NIFPerc").Value = CStr(Row.Column3)
.Parameters("@NIFReP").Value = CStr(Row.Column4)
.Parameters("@Nombre").Value = CStr(Row.Column6)
.Parameters("@CodProv").Value = CInt(Row.Column7)
.Parameters("@Modalidad").Value = CInt(Row.Column8)
.Parameters("@ImpBase").Value = valorColumna10
.Parameters("@PorcReten").Value = CDbl(Row.Column11 / 100)
.Parameters("@ImpReten").Value = CDbl(Row.Column12 / 100)
.Parameters("@EjerDev").Value = CDbl(Row.Column13)
.ExecuteNonQuery()
End With
End Sub
Public Overrides Sub AcquireConnections(ByVal Transaction As Object)
Dim nDTS As IDTSConnectionManager90 = Me.Connections.TablaMODELO80
sqlConnecta = CType(nDTS.AcquireConnection(Nothing), SqlConnection)
End Sub
Public Overrides Sub PreExecute()
sqlComm = New SqlCommand("INSERT INTO hac_modelo180(Ejercicio,NIFPerc,NIFReP,Nombre,CodProv,Modalidad,ImpBase,PorcReten,ImpReten,EjerDev) " & _
"VALUES(@Ejercicio,@NIFPerc,@NIFReP,@Nombre,@CodProv,@Modalidad,@ImpBase,@PorcReten,@ImpReten,@EjerDev)", sqlConnecta)
sqlParam = New SqlParameter("@Ejercicio", Data.SqlDbType.SmallInt)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@NIFPerc", Data.SqlDbType.Char)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@NIFReP", Data.SqlDbType.Char)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@Nombre", Data.SqlDbType.VarChar)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@CodProv", Data.SqlDbType.TinyInt)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@Modalidad", Data.SqlDbType.SmallInt)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@ImpBase", Data.SqlDbType.Decimal)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@PorcReten", Data.SqlDbType.Decimal)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@ImpReten", Data.SqlDbType.Decimal)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@EjerDev", Data.SqlDbType.Decimal)
sqlComm.Parameters.Add(sqlParam)
End Sub
Public Sub New()
End Sub
Public Overrides Sub ReleaseConnections()
nDts.ReleaseConnection(sqlConnecta)
End Sub
Protected Overrides Sub Finalize()
MyBase.Finalize()
End Sub
End Class
Thanks a lot for your help
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Sep 22, 2007
i have installed visual express and sql express.
but the problem is i want to add the connection string manuallty in visual studio express 2005.
so i want to add a reference of sql.data.sqlclient but could not add ?
i am not sure what is the problem or is am i missing anything
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Feb 1, 2008
I am not able to add the namespace "system.data.SqlClient" and not able to get the intellisense for sqlconnections. I have only vs2005. i do not have sql management express
or sql server 2005
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Feb 19, 2004
Hi All,
I am new to ASP.NET and trying to learn. I am getting the problem when I try to insert data into SQL. The exception that I am getting is
Exception Details: System.Data.SqlClient.SqlException: An explicit value for the
identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.
My table name is 'Customers' and its as below.
-----------------------------------------------------------------------
CustomerID--numeric---Identity Seed is 1000---Identity Increment is 1---No Nulls.
Name--------varchar---No Nulls.
address------Varchar---No Nulls.
State--------Varchar---No Nulls.
Zip-----------VarcHar---No Nulls.
PhoneNumber-Varchar---No Nulls.
Email---------Varchar---No Nulls.
and my code is (No fun of my code please--I am a learner)
-----------------------------------------------------------------------
Imports System.Data
Imports System.Data.SqlClient
Public Class register
Inherits System.Web.UI.Page
Protected WithEvents cnNWind As SqlConnection
'Protected drCustomers As SqlDataReader
Protected WithEvents lbladd As System.Web.UI.WebControls.Label
Protected WithEvents lblState As System.Web.UI.WebControls.Label
Protected WithEvents lblcity As System.Web.UI.WebControls.Label
Protected WithEvents lblzip As System.Web.UI.WebControls.Label
Protected WithEvents lblPhone As System.Web.UI.WebControls.Label
Protected WithEvents lblEmail As System.Web.UI.WebControls.Label
Protected WithEvents TxtName As System.Web.UI.WebControls.TextBox
Protected WithEvents txtAdd As System.Web.UI.WebControls.TextBox
Protected WithEvents txtState As System.Web.UI.WebControls.TextBox
Protected WithEvents txtCity As System.Web.UI.WebControls.TextBox
Protected WithEvents txtZip As System.Web.UI.WebControls.TextBox
Protected WithEvents txtPhone As System.Web.UI.WebControls.TextBox
Protected WithEvents TxtEmail As System.Web.UI.WebControls.TextBox
Protected WithEvents BtnSubmit As System.Web.UI.WebControls.Button
Protected WithEvents Label1 As System.Web.UI.WebControls.Label
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
End Sub
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeComponent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub BtnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BtnSubmit.Click
cnNWind = New SqlConnection()
cnNWind.ConnectionString = "Data Source=(local); Initial Catalog=cart; Integrated Security=SSPI"
cnNWind.Open()
If cnNWind.State = ConnectionState.Open Then
Dim cmCustomers As New SqlCommand("INSERT INTO Customers VALUES ('',' " & TxtName.Text & "','" & txtAdd.Text & "','" & txtState.Text & "','" & txtZip.Text & "','" & txtPhone.Text & "','" & TxtEmail.Text & "')", cnNWind)
cmCustomers.ExecuteNonQuery()
cmCustomers.ExecuteNonQuery()
cnNWind.Close()
End If
End Sub
End Class
The Error I am getting:
-----------------------------------------------------------------------
Server Error in '/SCart' Application.
--------------------------------------------------------------------------------
An explicit value for the identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: An explicit value for the identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.
Source Error:
Line 46: If cnNWind.State = ConnectionState.Open Then
Line 47: Dim cmCustomers As New SqlCommand("INSERT INTO Customers VALUES ('','" & TxtName.Text & "','" & txtAdd.Text & "','" & txtState.Text & "','" & txtZip.Text & "','" & txtPhone.Text & "','" & TxtEmail.Text & "')", cnNWind)
Line 48: cmCustomers.ExecuteNonQuery()
Line 49: cnNWind.Close()
Line 50: End If
Source File: d:inetpubwwwrootSCart
egister.aspx.vb Line: 48
Stack Trace:
[SqlException: An explicit value for the identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.]
System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
SCart.register.BtnSubmit_Click(Object sender, EventArgs e) in d:inetpubwwwrootSCart
egister.aspx.vb:48
System.Web.UI.WebControls.Button.OnClick(EventArgs e)
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
System.Web.UI.Page.ProcessRequestMain()
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573
The code works fine If I Dont use Identity Column, But I need to use Identity Column in my Project :( ...Please Help.
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Apr 14, 2007
I'm trying to retrieve an image from my ms sql server 2005, and i'm using VS2005....however, i have the following error during the compilation process Code in webform2.aspx.vb:Partial Class webform2 Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim connstr As String = "Data Source=DCPRJ007SQLEXPRESS;Initial Catalog=mydatabase;Integrated Security=True" Dim cnn As New Data.SqlClient.SqlConnection(connstr) Dim cmd As New Data.SqlClient.SqlCommand("select * from dbo.images where id=" & Request.QueryString("id"), cnn) cnn.Open() Dim dr As Data.SqlClient.SqlDataReader = cmd.ExecuteReader() Dim bindata() As Byte = dr.GetValue(1) Response.BinaryWrite(bindata) End SubEnd Class System.Data.SqlClient.SqlException was unhandled by user code Class=15 ErrorCode=-2146232060 LineNumber=1 Message="Incorrect syntax near '='." Number=102 Procedure="" Server="DCPRJ007SQLEXPRESS" Source=".Net SqlClient Data Provider" State=1 StackTrace: at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlDataReader.ConsumeMetaData() at System.Data.SqlClient.SqlDataReader.get_MetaData() at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader() at webform2.Page_Load(Object sender, EventArgs e) in C:Documents and SettingsAdministratorMy DocumentsVisual Studio 2005WebSitesWebSite7webform2.aspx.vb:line 10 at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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Nov 7, 2007
im getting this error when i try to access the application from the network. but in my computer work fine
Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
please help... thanxs
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Jul 2, 2006
Hi,
I had make one Desktop application in VB.net, having 6 threads simultaneously running. And each thread connect to sql server and stored the value in DB at every one second. Now my problem is that when I start the application its working fine but after 20-30 minutes exception is occuring.
Login failed for user 'sa'.
Exception StackTrace:
at System.Data.SqlClient.ConnectionPool.CreateConnection()
at System.Data.SqlClient.ConnectionPool.PoolCreateRequest(Object state)
can anybody help me
- Hiren
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Mar 20, 2004
Aaarrgghhhhhhh, still searchin' for a nice step-by-step article to learn data access (all insert delete update commands) with the SQL Server .NET Data Provider found in [System.Data.SqlClient] namespace....
Can anyone plz help me to find it?
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Jul 13, 2006
Hi All,
I have a form (asp website with the default.aspx and default.aspx.cs) which I use to connect to the SQL Server 2005 database and insert, update,get and delete data to and from it. In the table I have a column called Picture to insert a photo (usually bmp files) which I declared as a varbinary(max). ID is the primary key and is an int (i tried it to be numeric & varchar).
I am trying to insert data into the table using a form with this syntax:
SqlConnection enter_conn = new SqlConnection("user id=;" +
"password=;server=servername;" +
"Trusted_Connection=yes;" +
"database=Member Profiles; " +
"connection timeout=30");
enter_conn.Open();
string insertSql = "Insert dbo.Details(ID,Last_Name,First_Name,Middle_Initial,Project, Organization,Manager,Current_Skills,Biography,Hobbies, Picture) Select 1001, 'ABC','XYZ','R',' Website Development','ACT',LKM','ASP.Net, C#.Net, SQL Server 2005, SharePoint, Java, ',' developing the new website for ACT using SharePoint and SQL Server 2005', ' Singing, Listening to Music, Dancing, Cooking, Swimming', BulkColumn from Openrowset( Bulk 'C:\photos\rose.bmp', Single_Blob) as Picture";
SqlCommand myCommand = new SqlCommand(insertSql, enter_conn);
int i = myCommand.ExecuteNonQuery();
I have no data in the table and am doing the first insert. Though the data gets inserted I am getting this exception:
System.Data.SqlClient.SqlException: Violation of PRIMARY KEY constraint 'PK_Details'. Cannot insert duplicate key in object 'dbo.Details'. The statement has been terminated. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at _Default.Enter_Click(Object sender, EventArgs e) in c:Documents and SettingskrkondaXMy DocumentsVisual Studio 2005WebSitesMember ProfilesDefault.aspx.cs:line 82
Can someone please suggest anything???? I appreciate a quick response please!!!!
Thanks,
Kavya
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Dec 19, 2006
I am getting this error message
System.Data.SqlClient.SqlException: Invalid object name 'RacingHeritage'
I have noticed from other posts where the database owner is the login name
I rebuilt the table and the owner is now dbo
Here is the Code
Function GetCustomers() As System.Data.DataSet Dim connectionString As String = Application("HiddenConnection") Dim dbConnection As System.Data.IDbConnection = New System.Data.SqlClient.SqlConnection(connectionString)
Dim queryString As String = "SELECT [RacingHeritage].[RHID], [RacingHeritage].[UserID], [RacingHeritage].[Clie"& _ "ntFirstName] FROM [RacingHeritage]" Dim dbCommand As System.Data.IDbCommand = New System.Data.SqlClient.SqlCommand dbCommand.CommandText = queryString dbCommand.Connection = dbConnection
Dim dataAdapter As System.Data.IDbDataAdapter = New System.Data.SqlClient.SqlDataAdapter dataAdapter.SelectCommand = dbCommand Dim dataSet As System.Data.DataSet = New System.Data.DataSet dataAdapter.Fill(dataSet)
Return dataSet End Function
Any Ideas
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Mar 8, 2008
I keep getting this error whenever I try to run my query: System.Data.SqlClient.SqlException: Incorrect syntax near '>'.
I'm just trying to fill a dataset with three tables that contain the past few days headlines...what am I doing wrong?? Private Sub fishHeadlines()
Dim dateNow As DateTime = DateTime.Now()Dim dateThen As DateTime = DateTime.Today.AddDays(-2)
'create the table array so we can create the sql statement in a moment
Dim table() As Stringtable = New String() {"Snapper", "Scissor", "MahiMahi"}
Dim strSelect As String
'Create a dataset to hold the tables containing the headlinesDim headlinesDS As New DataSet()
'create the connection string - SnapshotConnectionString is in web.config file
Dim strConnect As StringstrConnect = ConfigurationManager.ConnectionStrings("fishConnectionString").ConnectionString
'create a connection object to the databaseDim objConnect As New SqlConnection(strConnect)
objConnect.Open()
Dim i As Integer
'fill the datatablesFor i = 0 To table.Length
strSelect = "SELECT Event FROM " & table(i) & "WHERE (DateOfEntry > '" & dateThen & "')"
'create a data adapter object using connection and sql statementsDim objDA1 As New SqlDataAdapter(strSelect, objConnect)
'fill the dataset
objDA1.Fill(headlinesDS, table(i))
Next
Dim strTable As StringDim dr As DataRow
strTable = "<table>"For i = 0 To table.Length
For Each dr In headlinesDS.Tables(table(i)).Rows
strTable += "<tr><td>" & dr(0).ToString() & "</td></tr>"
Next
Next
strTable += "</table>"
'display the data
lblHeadlines.Text = strTable
End Sub
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Mar 18, 2008
While learning ASP.net 2.0, I was taught that the the default provider for the SqlDataSource was System.Data.SqlClient, and that I only needed to specify it as a provider when I put it in the web.config file. However, now (in VWDE 2008) when I add a SqlDataSource to a page, it adds ProviderName="System.Data.SqlClient". Does this mean that it isnt the default anymore?
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Apr 6, 2008
Hello,
I see the following in connection strings all the time: providerName="System.Data.SqlClient"/>
For example:<connectionStrings><add name="classifiedsConnection" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|classifiedsdb.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/></connectionStrings>
What is providerName="System.Data.SqlClient" ? What is it used for?Thanks, Jim
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May 31, 2008
Yesterday, in response to an error msg (something like Login failed for user ''), I deleted the 'providerName=System.Data.SqlClient'in my connectionStrings from Web.config. Then the aspx website worked.I understand that the value "System.Data.SqlClient" specifies that ASP.NET should
use the ADO.NET provider System.Data.SqlClient
when making a connection. Why deleting providerName solved the error? Jeffrey
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Mar 9, 2004
Hi everybody,
We are developing Asp.Net Application in following environment.
Windows 2003
Dot Net 2003
SQL Server 2000
Problem :
We have team of four people. We made one machine as database server and rest of the people trying to connect to that database server. we are getting error "SQL server not found.".
We are using following string as a connection string.
"DATA SOURCE=192.292.7.105;DATABASE=xxx;User ID=xxx;password=xxxx"
We have tried same connection string with the VB.Net program. It is working fine.
But when we are trying same string in the web application. It is giving me the above mentioned error.
Can any one help me ?
Thanks is advance.
From
Jigar Shah
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Sep 2, 2005
I am getting the exception -System.Data.SqlClient.SqlException: Timeout expired.The timeout period elapsed prior to completion of the operation or the server is not respondingWhen I am executing the stored procedureHow to resolve this?
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Apr 16, 2006
I am getting the error below
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Dec 3, 2007
We have some big problems with our SQL Server 2000 database right now.
The code has not been changed for over halv an year and some days ago we started to get this error.
System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
Both web and database server is running fine.
Any help is appreciated!
(We are now pretty sure that all errors occurs when we are doing inserts to the database.)
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