Unable To Cast Object Of Type 'System.DBNull' To Type 'System.Byte[]'.
Aug 13, 2007
Hi,
I have developed a custom server control for .NET Framework 2.0. The server control has a property named BinaryData of type byte[]. I marked this property to be data bindable. Now, I have varbinary(Max) type of field in my SQL Database and I have used SQLDataSource and bound this varbinary(Max) field with the property BinaryData (byte[]) of my control. It is working fine as long as the data value is not NULL. Now, In my control, I have handled the NULL value so that no Exception is thrown. Still, when I bind this property using the SQLDataSource, I get Error "Unable to cast object of type 'System.DBNull' to type 'System.Byte[]'." I am not sure if I can do anything to stop this erro within my control. If it is not possible from the control, then what is the workaround that I can do in my ASPX page in order to stop this error ?
Thanks a lot in advance.
View 10 Replies
ADVERTISEMENT
Oct 19, 2006
I am trying to put the data from a field in my database into a row in a table using the SQLDataSource.Select statement. I am using the following code: FileBase.SelectCommand = "SELECT Username FROM Files WHERE Filename = '" & myFileInfo.FullName & "'" myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments()), String)But when I run the code, I get the following error:Server Error in '/YorZap' Application. Unable to cast object of type 'System.Data.DataView' to type 'System.String'. 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.InvalidCastException: Unable to cast object of type 'System.Data.DataView' to type 'System.String'.Source Error: Line 54: FileBase.SelectCommand = "SELECT Username FROM Files WHERE Filename = '" & myFileInfo.FullName & "'"
Line 55: 'myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments).GetEnumerator.Current, String)
Line 56: myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments()), String)
Line 57:
Line 58: filesTable.Rows.Add(myDataRow)Source File: D:YorZapdir_list_sort.aspx Line: 56 Stack Trace: [InvalidCastException: Unable to cast object of type 'System.Data.DataView' to type 'System.String'.]
ASP.dir_list_sort_aspx.BindFileDataToGrid(String strSortField) in D:YorZapdir_list_sort.aspx:56
ASP.dir_list_sort_aspx.Page_Load(Object sender, EventArgs e) in D:YorZapdir_list_sort.aspx:7
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +13
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +45
System.Web.UI.Control.OnLoad(EventArgs e) +80
System.Web.UI.Control.LoadRecursive() +49
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3743
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210 Please help me!
View 3 Replies
View Related
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
View 13 Replies
View Related
Apr 23, 2007
I get the following message in the vs2005 querybuilder when i do a preview:
***********************************
SQL Execution Error.
Executed SQL statement: SELECT Schoolindex, Variant, VVSchool, [index], indincl, VVRuimtes, School FROM School WHERE (Schoolindex = @PARAM1)
Error Source: SQL Server Compact Edition ADO.NET Data Provider
Error Message: @PARAM1 : Unable to cast object of type 'System.Data.SqlTypes.SqlInt32 to type System.IConvertable'.
****************************************
The same querypreview works fine without the parameter:
SELECT Schoolindex, Variant, VVSchool, [index], indincl, VVRuimtes, School FROM School WHERE (Schoolindex = 186)
Can anybody tell me why this is?
And tell me a way to get the tableadapter working?
Anne-Jan Tuinstra
View 3 Replies
View Related
Jun 19, 2008
I'm getting this error on a vb.net page the needs to execute two separate stored procedures. The first one, is the main insert, and returns the identity value for the ClientID. The second stored procedure inserts data, but needs to insert the ClientID returned in the first stored procedure. What am I doing wrong with including the identity value "ClientID" in the second stored procedure?
Unable to cast object of type 'System.String' to type 'System.Web.UI.WebControls.Parameter'. 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.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Web.UI.WebControls.Parameter'.Source Error:
Line 14: If li.Selected Then
Line 15: InsertClientCompanyType.InsertParameters("CompanyTypeID").DefaultValue = li.Value
Line 16: InsertClientCompanyType.InsertParameters("ClientID") = ViewState("ClientID")
Line 17:
Line 18:
Source File: C:InetpubwwwrootIntranetExternalAppsNewEmploymentClientNewClient.aspx.vb Line: 16
Here is my code behind... What am I doing wrong with grabbing the ClientID from the first stored procedure insert?
Protected Sub InsertNewClient_Inserted(ByVal sender As Object, ByVal e As SqlDataSourceStatusEventArgs)ClientID.Text = e.Command.Parameters("@ClientID").Value.ToString()ViewState("ClientID") = e.Command.Parameters("@ClientID").Value.ToString()End SubProtected Sub Submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Submit.ClickInsertNewClient.Insert()For Each li As ListItem In CompanyTypeID.Items
If li.Selected ThenInsertClientCompanyType.InsertParameters("CompanyTypeID").DefaultValue = li.ValueInsertClientCompanyType.InsertParameters("ClientID") = ViewState("ClientID")InsertClientCompanyType.Insert()End IfNextEnd Sub
View 2 Replies
View Related
Dec 31, 2007
Hi, I got this field (dateSubmitted) having a data type of DateTime but I receive this error "Unable to cast object of type 'System.DateTime' to type 'System.String'." All value for dateSubmitted field are 12/27/2007 12:00:00 AM. cheers,imperialx
View 3 Replies
View Related
Nov 27, 2007
hi i dont know how to do type casting.
this.Variables.ObjVariable this objVariables i have create in variable place below like this
Name:Variable datatype int32 values 0
Name: NumberofRowsdatatype int32 values 10000
Name: ObjVariable datatype Object
My code
public override void CreateNewOutputRows()
{
/*
Add rows by calling the AddRow method on the member variable named "<Output Name>Buffer".
For example, call MyOutputBuffer.AddRow() if your output was named "MyOutput".
*/
System.Data.OleDb.OleDbDataAdapter oLead = new System.Data.OleDb.OleDbDataAdapter();
//System.Data.Odbc.OdbcDataAdapter oLead = new System.Data.Odbc.OdbcDataAdapter();
//SqlDataAdapter oLead = new SqlDataAdapter();
System.Data.DataTable dt = new System.Data.DataTable();
DataSet ds = (DataSet)this.Variables.ObjVariable; // here i am getting error
ds.Tables.Add(dt);
ADODB.Record rs = new ADODB.Record();
oLead.Fill(ds, rs, "Variables");
foreach (DataRow row in dt.Rows)
{
{
Output0Buffer.AddRow();
Output0Buffer.Column = (int)row["Column"];
Output0Buffer.Column1 = row["Column1"].ToString();
Output0Buffer.Column2 = row["Column2"].ToString();
}
}
}
}
This is the error
Unable to cast object of type 'System.Object' to type 'System.Data.DataSet'.
at ScriptMain.CreateNewOutputRows()
at UserComponent.PrimeOutput(Int32 Outputs, Int32[] OutputIDs, PipelineBuffer[] Buffers)
at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.PrimeOutput(Int32 outputs, Int32[] outputIDs, PipelineBuffer[] buffers)
thanks
kedaranth
View 5 Replies
View Related
Jul 2, 2007
I'm getting the following error: Unable to cast object of type 'System.Xml.XmlTextReaderImpl' to type 'System.Xml.XmlTextReader'. This works in .net 1.1 but having issues in the conversion to 2.0.
Public Function RunSPReturnXMLReader(ByVal strSP As String, ByVal ParamArray params() As SqlParameter) As System.Xml.XmlTextReader
Dim objHelperConnection As SqlConnectionobjHelperConnection = New SqlConnection(sConnect)Dim myXmlReader As System.Xml.XmlReader = objHelperCommand.ExecuteXmlReader()
RunSPReturnXMLReader = myXmlReader - GETTING ERROR HERE
End Function
Thanks...
View 10 Replies
View Related
Aug 1, 2007
Unable to cast object of type 'System.String' to type 'System.Web.UI.DataSourceSelectArguments'.
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.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Web.UI.DataSourceSelectArguments'.
Hi, In my pageload i have data retriving from a page and i want it to load it in the GridView. i have GridView and SqlDataSource but when the page loads i am getting the above error. i am not sure what im doing wrong here. i tried different ways. but no luck Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Thenfp = CType(Context.Handler, Member)
'lblEmail.Text = fp.EMM.ToString
'this labelbox for Email address is under the Name'lblEmail.Text = fp.EmailAddress.ToString
Dim conn As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("imacstestConnectionString").ConnectionString)
Dim cmd As SqlCommand = New SqlCommand("SELECT , [fname], [mname], [lname], [address], [city], [state], [zip], [phone] FROM [t_CustomerAcct] WHERE = @email", conn)cmd.Parameters.AddWithValue("@email", fp.EMM.ToString)
conn.Open()
SqlDataSource1.Select(cmd.ExecuteScalar())
'.ExecuteScalar()
conn.Close()
End If
End Sub
View 1 Replies
View Related
Apr 24, 2007
I'm creating an ISP for extractig data from a text file and put it in a database.
One of the fields in my textfile contains the value '0' or a date. If it's '0' it should be converted to the Null Value. The column in which it has to be saved is of type smalldatetime.
This is the code of my script where I want to check the value of the field in my textfile and convert it to a date or to Null.
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
If Row.cdDateIn = "" Or Row.cdDateIn= "0" Then
Row.cdDateInCorr = CDate(DBNull.Value)
ElseIf Row.cdDateIn_IsNull Then
Row.cdDateInCorr = CDate(DBNull.Value)
Else
Row.cdDateInCorr = CDate(Row.cdDateIn)
End If
End Sub
The error that I get is:
Validation error. Extract FinCD: Conversion of cdDateIn [753]: Eroor 30311: Value of type 'System.DBNull' cannot ben converted to 'Date'.
How do I resolve this problem ?
View 8 Replies
View Related
Dec 20, 2006
I have an application which runs successfully on a couple of my customer's machines but fails on a third. It seems to fail when opening the database:
Unable to cast COM object of type 'ADODB.CommandClass' to interface type 'ADODB._Command'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{B08400BD-F9D1-4D02-B856-71D5DBA123E9}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).
Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=false; Initial Catalog=lensdb;Data Source = SQL
Before I got this error I was getting another problem (sorry didn't make a copy of that error's text) that made me think that adodb.dll simply wasn't loaded/registered. I got rid of that error by copying my adodb.dll onto the third machine and running gacutil /i. There is now an entry in winntassemblies for adodb.
Just in case you think it could be an obvious registry problem: when I started getting the current error I thought that maybe the registry needed updating and I merged the following lines into onto the target machine (from my dev machine):
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOTInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}]
@="_Command"
[HKEY_CLASSES_ROOTInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}ProxyStubClsid]
@="{00020424-0000-0000-C000-000000000046}"
[HKEY_CLASSES_ROOTInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}ProxyStubClsid32]
@="{00020424-0000-0000-C000-000000000046}"
[HKEY_CLASSES_ROOTInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}TypeLib]
@="{EF53050B-882E-4776-B643-EDA472E8E3F2}"
"Version"="2.7"
[HKEY_LOCAL_MACHINESOFTWAREClassesInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}]
@="_Command"
[HKEY_LOCAL_MACHINESOFTWAREClassesInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}ProxyStubClsid]
@="{00020424-0000-0000-C000-000000000046}"
[HKEY_LOCAL_MACHINESOFTWAREClassesInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}ProxyStubClsid32]
@="{00020424-0000-0000-C000-000000000046}"
[HKEY_LOCAL_MACHINESOFTWAREClassesInterface{B08400BD-F9D1-4D02-B856-71D5DBA123E9}TypeLib]
@="{EF53050B-882E-4776-B643-EDA472E8E3F2}"
"Version"="2.7"
but, no change alas.
All three machines are running Windows 2000.
Any advice would be appreciated.
Thanks in advance,
Ross
View 1 Replies
View Related
Jan 25, 2008
In Sql Server 2005, Sql Server Mangerment Studio 9.00.1399.00
I connected an user instance to the databases under .SQLEXPRESS(SqlServer 9.0.3042 -....)
when I right click on a table
and chose modify, or new table...
I get
TITLE: Microsoft SQL Server Management Studio
------------------------------
Unable to cast object of type 'Microsoft.SqlServer.Management.Smo.Urn' to type 'Microsoft.SqlServer.Management.Smo.Urn'. (SQLEditors)
------------------------------
BUTTONS:
OK
------------------------------
same thing for views
What can I do to fix the problem? is there a patch?
btw script .... as seem to be erro free Error free is also View dependence,
View 3 Replies
View Related
Oct 4, 2006
When I open up my existing SSIS project, I always get this error. Does anyone know what was wrong ?
TITLE: Microsoft Visual Studio
------------------------------
Unable to cast COM object of type 'Microsoft.SqlServer.Dts.Runtime.Wrapper.PackageNeutralClass' to interface type 'Microsoft.SqlServer.Dts.Runtime.IObjectWithSite'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{FC4801A3-2BA9-11CF-A229-00AA003D7352}' failed due to the following error: The application called an interface that was marshalled for a different thread. (Exception from HRESULT: 0x8001010E (RPC_E_WRONG_THREAD)).
View 32 Replies
View Related
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?
View 28 Replies
View Related
Mar 21, 2007
Reporting services is configured to use a custom security extension in the following Environment.
Windows xp
IIS 5.0
when i go to http://servername/reports , the UIlogon.aspx page loads fine and i enter username and password. but i get logon failed.
when i go to http://servername/reportserver , the logon.aspx does not load and i get the following error message :
"Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."
any idea ? .
chi
View 6 Replies
View Related
Mar 6, 2008
I created a function called Temperature in VB to be used as a UDF in SQL2005. I get the error listed below. Any thoughts?
CREATE FUNCTION Temperature(@FluidName SQL_variant, @InpCode SQL_variant, @Units SQL_variant, @Prop1 SQL_variant, @Prop2 SQL_variant)
RETURNS Float
AS EXTERNAL NAME Fluids_VB6.[Fluids_VB6.FluidProperties.Fluids].Temperature
Then ran function:
select dbo.temperature('R22','t','e','225.6','0')
Got this:
Msg 6522, Level 16, State 2, Line 1
A .NET Framework error occurred during execution of user defined routine or aggregate 'Temperature':
System.InvalidCastException: Conversion from type 'SqlBoolean' to type 'Boolean' is not valid.
System.InvalidCastException:
at Microsoft.VisualBasic.CompilerServices.Conversions.ToBoolean(Object Value)
at Fluids_VB6.FluidProperties.Fluids.Setup(Object& FluidName)
at Fluids_VB6.FluidProperties.Fluids.CalcSetup(Object& FluidName, Object& InpCode, Object& Units, Object& Prop1, Object& Prop2)
at Fluids_VB6.FluidProperties.Fluids.CalcProp(Object& FluidName, Object& InpCode, Object& Units, Object& Prop1, Object& Prop2)
at Fluids_VB6.FluidProperties.Fluids.Temperature(Object FluidName, Object InpCode, Object Units, Object Prop1, Object Prop2)
Thanks
Buck
View 1 Replies
View Related
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
View 3 Replies
View Related
Mar 7, 2008
Hello Friends
How are you?? Friends i am getting problem in SQL Server 2005. I am deployng web application on production server as well as Databse also. In production server i inserted new field in all tables which is rowguid and its type is uniqueidentifier. The default binding for this field is newsequentialid(). In some pages it works ok but in some places it generates error like 'Conversion from type 'DBNull' to type 'String' is not valid'. Can anybody help me to solve this problem. Its urgent so plz reply me as soon as possible. I'll be very thankfull to you. Thanks in Advance.
Regards,
View 1 Replies
View Related
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 !
View 2 Replies
View Related
Mar 26, 2008
hi
i am getting an error with my code, it says 'value of type byte canot be converted to 1 dimensional array of byte' do you know why and how i can correct this error, the follwoing is my code.
can anyone help me correct the error and let me know ow to solve it
thanks for any help givenPublic Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequestDim myConnection As New Data.SqlClient.SqlConnection("ConnectionString")
myConnection.Open()
Dim sql As String = "Select Image_Content from ImageGallery where Img_Id=@ImageId"Dim cmd As New Data.SqlClient.SqlCommand(sql, myConnection)cmd.Parameters.Add("@imgID", Data.SqlDbType.Int).Value = context.Request.QueryString("id")
cmd.Prepare()Dim dr As Data.SqlClient.SqlDataReader = cmd.ExecuteReader()
dr.Read()
context.Response.ContentType = dr("imgType").ToString()context.Response.BinaryWrite(CByte(dr("imgData"))) ----- this is the line with the error
End Sub
View 1 Replies
View Related
Oct 20, 2015
I want restore database in my disk , but i cant . I've click and add from device. this is the screen. And when i click content , it show me this text :Â Object cannot be cast from DBNull to other types. (mscorlib) .Â
View 2 Replies
View Related
Apr 20, 2008
Using OnSelected on the SqlDataSource----here is my currect code:private void On_Load(Object sender, SqlDataSourceCommandEventArgs e){if (e.Command.Parameters["@DueDate"].Value = "NULL"){e.Command.Parameters["@DueDate"].Value = "0000-00-00 00:00:00.000";}}
I am trying to change the value from NULL(in a datetime field) to "0000-00-00 00:00:00.000" for use on the page.Any ideas, suggestions, or thoughts would be greatly appreciated!
,Gary"we truly fail, only when we quit."
View 2 Replies
View Related
Jan 16, 2008
Greetings everyone, I am attempting to build my first application using Microsofts Sql databases. It is a Windows Mobile application so I am using Sql Server Compact 3.5 with Visual Studio 2008 Beta 2. When I try and insert a new row into one of my tables, the app throws the error message shown in the title of this topic.
'((System.Exception)($exception)).Message' threw an exception of type 'System.NotSupportedException'
My table has 4 columns (i have since changed my FavoriteAccount datatype from bit to Integer)
http://i85.photobucket.com/albums/k71/Scionwest/table.jpg
Account type will either be "Checking" or "Savings" when a new row is added, the user will select what they want from a combo box.
Next is a snap shot of my startup form.
http://i85.photobucket.com/albums/k71/Scionwest/form.jpg
Where it says "Favorite Account: None" in the top panel, I am using a link label. When a user clicks "None" it will go to a account creation wizard, and set the first account as it's primary/favorite. As more accounts are added the user can select which will be his/her primary/favorite. For now I am just creating a sample account when the label is clicked in an attempt to get something working. Below is the code used.
private void lnkFavoriteAccount_Click(object sender, EventArgs e)
{
FinancesDataSet.BankAccountRow account = this.financesDataSet.BankAccount.NewBankAccountRow();
account.Name = "MyBank Checking Account";
account.AccountType = "Checking";
account.Balance = Convert.ToDecimal("15.03");
account.FavoriteAccount = 1;//datatype is an integer, I have changed it since I took the screenshot.
financesDataSet.BankAccount.Rows.Add(account);
//The next three lines where added while I was trying to get this to work.
//I don't know if I really need them or not, I receive the error regardless if these are here or not.
this.bankAccountTableAdapter1.Update(financesDataSet);
this.financesDataSet.AcceptChanges();
refreshDatabase();
}
the refreshDatabase() code is here:
private void refreshDatabase()
{
this.bankAccountTableAdapter1.Fill(this.financesDataSet.BankAccount);
//Aquire a count of accounts the user has
int numAccounts = financesDataSet.BankAccount.Count;
//Loop through each account and see which one is the primary.
for (int num = 0; num != numAccounts; num++)
{
//Works ok in frmMain_Load, but when my lnkFavoriteAccount_click calls this, it throws the error.
if (this.financesDataSet.BankAccount[num].FavoriteAccount == 1)
{
//Display the primary account on our home page. User can click the link label & be taken to their account register.
this.lnkFavoriteAccount.Text = this.financesDataSet.BankAccount[num].Name.ToString();
this.lnkFavoriteFunds.Text = this.financesDataSet.BankAccount[num].Balance.ToString();
break;
}
}
}
and my form_load code
private void frmMain_Load(object sender, EventArgs e)
{
refreshDatabase();
}
So, when I click on the lnkFavoriteAccount label, and my new row gets added, the app stops at the following line in my DataSet.Designer
[global:ystem.Diagnostics.DebuggerNonUserCodeAttribute()]
public byte FavoriteAccount {
get {
try {
return ((byte)(this[this.tableBankAccount.FavoriteAccountColumn]));
}
catch (global:ystem.InvalidCastException e) {
//Stops at the following line, this error was caused by 'if (this.financesDataSet.BankAccount[num].FavoriteAccount == 1)'
throw new global:ystem.Data.StrongTypingException("The value for column 'FavoriteAccount' in table 'BankAccount' is DBNull.", e);
}
}
set {
this[this.tableBankAccount.FavoriteAccountColumn] = value;
}
}
I have no idea what I am doing wrong, all of the code I used I retreived from Microsofts help documentation included with VS2008. I have tried used my TableAdapter.Insert() method and it still failed when it got to
if (this.financesDataSet.BankAccount[num].FavoriteAccount == 1)
in my refreshDatabase() method it still failed.
When I look, the data has been added into the database, it's just when I try to retreive it now, it bails on me. Am I retreiving the information wrong?
Thanks for any help you guys can offer.
Johnathon
View 1 Replies
View Related
May 23, 2007
Is there any Posibility to change a User Table to System Table.
How to create one system table.
I am in Big mess that One of the Table I am using is in System Type.
I cant Index the same. Is there any Mistake we can change a user table to system table.....
View 9 Replies
View Related
May 10, 2006
Hi,
I am trying to make a mobile application work, but I get the following error. The operating system on Pocket PC is Microsoft® Windows Mobile„¢ 2003 Second Edition. Any ideas? Thanks in advance.
The followings are the error and my codes:
System.TypeLoadException was unhandled
Message="Could not load type 'System.Data.SqlServerCe.SqlCeDataAdapter' from assembly 'System.Data.SqlServerCe, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845DCD8080CC91'."
StackTrace:
at SQLMobile.Form1.Form1_Load()
at System.Windows.Forms.Form.OnLoad()
at System.Windows.Forms.Form._SetVisibleNotify()
at System.Windows.Forms.Control.set_Visible()
at System.Windows.Forms.Application.Run()
at SQLMobile.Form1.Main()
Codes:
Private Sub FillGrid()
Dim filename As New String _
("Program FilesSQLMobilesqlmobile.sdf")
Dim conn As New SqlCeConnection("Data Source=" + filename)
Dim selectCmd As SqlCeCommand = conn.CreateCommand()
selectCmd.CommandText = "select Destination from flightdata"
Dim adp As New SqlCeDataAdapter(selectCmd)
Dim ds As New DataSet()
adp.Fill(ds)
DataGrid1.DataSource = ds
End sub
View 1 Replies
View Related
Dec 14, 2005
After testing out the application i write on the local pc. I deploy it to the webserver to test it out. I get this error.
System.Data.SqlClient.SqlException: The conversion of a char data type to a
datetime data type resulted in an out-of-range datetime value.
Notes: all pages that have this error either has a repeater or datagrid which load data when page loading.
At first I thought the problem is with the date, but then I can see
that some other pages that has datagrid ( that has a date field) work
just fine.
anyone having this problem before?? hopefully you guys can help.
Thanks,
View 4 Replies
View Related
Feb 2, 2008
I have the following SqlDataSource in my page:<asp:SqlDataSource ID="sqlds" runat="server" ConnectionString="<%$ ConnectionStrings:cs %>" SelectCommand="SELECT [Quest1], [Quest2], [Quest3], [Quest4], [Quest5] WHERE ([QuestID] = @QuestID)"> <SelectParameters> <asp:Parameter Name="QuestID" /> </SelectParameters> In my code I get the following error: "Cannot convert type 'int' to 'System.Data.DataView'", I don't understand why I am getting this error because I am casting my SqlDataSource as type DataView when passing it to my DataView type.Code: protected void Chart(string record) { System.Data.DataView dv = (System.Data.DataView)sqlds.SelectParameters.Add("QuestID", System.TypeCode.Int32, record); //Error line ... ... ...}If anyone could point me in the right direction I would be very grateful.
View 5 Replies
View Related
Mar 4, 2008
My SqlConnection is causing an error "sqlConn.ServerVersion threw an exception of type System.InvalidOperationException". Everything I have read seems to suggest that there is a problem with my SQLConnection parameters but as you can see from the commeted code below I have tried three different servers with four different configurations. I am out of ideas on what is causing the error.
Thanks - Amy
Here is a section of my code:
String sqlStmt = "Select [UserName], [Password], [Last], [First] from Contacts Where Login=@Uid AND Password=@Pwd";
SqlConnection sqlConn = new SqlConnection("Data Source=localhost;Initial Catalog=test;Integrated Security=SSPI;");//SqlConnection sqlConn = new SqlConnection("Data Source=pe2800;Initial Catalog=test;Integrated Security=SSPI;");//SqlConnection sqlConn = new SqlConnection("Data Source=HorizonDC02;Initial Catalog=test;Integrated Security=SSPI;");//SqlConnection sqlConn = new SqlConnection("Data Source=HorizonDC02;Initial Catalog=test;User ID=username;Password=password;");
SqlCommand sqlCmd = new SqlCommand(sqlStmt, sqlConn);sqlCmd.Parameters.Add("@Uid", SqlDbType.VarChar, 30).Value = uid;sqlCmd.Parameters.Add("@Pwd", SqlDbType.VarChar, 30).Value = pwd;sqlCmd.Connection.Open();
View 2 Replies
View Related
Apr 16, 2006
I am getting the error below
View 2 Replies
View Related
Aug 11, 2005
I built a database by using a generated script from the originaldatabase. It built the System Store Procedures as User type. How do Ichange them back to System type?
View 4 Replies
View Related
Dec 5, 2006
Hi all
I have some problems with sending Mail over System.Net.Mail ...
I have made a C# Class which sends mail, and it works fine.
Now I have added this assembly to SQL Server 2005,
I made the SQL function and so on.
When I try to run it I get the following message:
Msg 50000, Level 16, State 1, Procedure SendMail, Line 114
Request for the permission of type 'System.Net.Mail.SmtpPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Would be very very happy for any comments !!
Thanks and best regards
Frank Uray
View 4 Replies
View Related
Mar 3, 2008
All,
I have a large package (I know the recommendation is to have one package per data flow.) It has 20+ data flows in it. Personally I have found it much too complex to manage dozens of packages just because I want to have more than one data flow in my package.
I have been working on this package in an iterative manner over the past several months. Recently, I noticed I started getting the error message: "Exception of type 'System.OutOfMemoryException' was thrown" when I went to save my package. This is _extremely_ frustrating, because when this happens, all the changes I have made are generally lost. Occasionally, I have noticed if I close some other BIDS windows, or just wait a bit, I will be able to click save again, and it will actually save. Usually, I am forced to just "end-task" Visual Studio.
Other than splitting the package up into 20 separate packages, is there a way around this problem? I would rather put up with the lost changes than switch to dealing with 20 separate packages. It just makes things to difficult to manage when everything is split up into so many packages - particularly when I am passing variables around from parent to child packages.
Please help!
Thanks,
David Baldauff
View 13 Replies
View Related
May 23, 2006
How to set NULL values inside VB Script .Net?? Both causes error:
.FECHAAP = NULL
.FECHAAP = System.DBNull
View 3 Replies
View Related
