Problem With My SQlClient Login
Aug 14, 2007
OK, I am an dinosaur, I am still using ASP.NET 1.1 with an MS Access database. However, I am being forced to upgrade from Access to SQL Server. I have converted the Access database using the Access Upsize wizard and everthing went fine. When I go into my ASP.NET app the Database shows up fine and I can list the data with no problems.
When I try to open the new data base in the code behind I get the following error: System.Data.SqlClient.SqlException: Login failed for user 'WIRELESSINFOASPNET"
Where the WIRELESSINFO is the name of my server. I have checked the permissions on the SQL Server directory and Sub directories where the actual data tables are located and the ASPNET Machine Account (WIRELESSINFOASPNET) has full control. Can anyone help out on this. Thanks, Art
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Apr 16, 2008
Hi when i try and open a database in sql server management studio i get the error "Cannot open user default database. Login failed. Login failed for user 'DOMAINUser'. (.Net SqlClient Data Provider)", what can i do to rectify this, i have googled around and still havent found no answers.
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Feb 28, 2007
Hi guys,
Everything seems to be fine, can browse the DB from VS, Preview data works fine in dataset, and the page works fine before adding any SQL DB code.
I draged n dropped a new DropDownList, Bind it to an object from dataset. And when I want to run the page I get this error !!!
I appreciate any help.
Thanks, Mehdi
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Aug 12, 2005
when i browser the page on browser the following error dispaly
" System.Data.SqlClient.SqlException: Login failed for user xxxx "sqlAdaptor , sqlconnection and dataSet are all fine. i can even preivew dataset, but i don't know while it doesn't display in browser.
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Jul 8, 2004
Here's the error stack:
System.Data.SqlClient.SqlException: Cannot open database requested in login 'MYKYTYNMDB'. Login fails.
Login failed for user 'OMM_IUSER'.
at System.Data.SqlClient.ConnectionPool.GetConnection (Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnectionPoolManager.Get PooledConnection(SqlConnectionString options, Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnection.Open()
at DreamweaverCtrls.DataSet.GetConnection(String strConnection)
at DreamweaverCtrls.DataSet.DoInit()
i have just exported all objects from one sql server to another and no matter how many times i check the password i keep getting this same error..
I KNOW for a fact that the password and username are correct and that they have all of the correct permissions..
what am i doing wrong?
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Apr 3, 2008
hi guys,
i'm upgrading a web application designed in visual studio 2003 to visual studio 2005.
i want to start from the scratch.
I've restored the database from the older application in sql server 2000 from another machine.
now whenever i try to execute that application an error is displayed stating
"System.Data.SqlClient.SqlException: Login failed for user 'VASANTASPNET'."
my sql server uses windows authentication mode,and i've made changes in the connectionstring accordingly...
but still it shows this error...
can ny body help me get rid of it..?
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May 2, 2008
I am having a very strange and frustrating problem with moving an application from Development to Production.
I have been working on this application on XP with VS2005 with SQL Express on my local machine. Throughout the development lifecycle I have moved it to the Server multiple times to test things and everything has been working fine until this last time.
What I have done since the last time:
Added some ASP.NET AJAX functionality
Added some views that I am having to fill a dataset from the dataset to manipulate the data before presentation.
Everything has worked fine without any issues on my local machine with my local database.
I just made backups of the databases and restored them on the server and have moved all my project files up to the server. I then installed the ASP.NET AJAX Extensions 1.0 on my 2.0 server.
NOW - The Problem:
The entire site works fine, I can read data from every table of every database, and I can also write data to all the databases. However, this one page has a GridView that I pull data from the database and fill a DataSet with the data. I then manipulate the data, adding some data from other databases and then present it to the browser.
This is working fine on my local machine, but since pushing this to the server I get an error:
System.Data.SqlClient.SqlException: Login failed for user 'ext_access'
Line 36: ad.Fill(ds, "CaskInfo")Line 37: Dim Table As DataTable = ds.Tables("CaskInfo")Line 38: Table.Columns.Add("Company", GetType(String))
I have checked the database and the SQL Server and the user listed above has the correct access to the database, which I would guess since everthing else is working fine. I use the same connection information throughout the app and it is stored in the web.config so I am certain nothing is wrong with my connection information. I access that information with the same code throughout the application as well so I know it is correct.
I know this may not be the most trimmed piece of SQL code, but I figured I would post it incase there is something inefficient in my SQL that could be causing this.
Here is my code leading up to the error.
Dim conn As SqlConnection = CreateConnection2()Dim connectionString As String = conn.ConnectionString
Dim myConnection As New SqlConnection(connectionString)Dim ad As New SqlDataAdapter("Select CaskID, CompanyID, SiteID, UnitIDVCC, UnitIDTSC, DATEPART(mm,DateLoaded)as Month, DATEPART(dd,DateLoaded)as Day, DATEPART(yyyy,DateLoaded)as Year, COCName, AmendmentName, HeatLoad, Dose, DryTime, Damaged, Debris FROM CaskInfo, COCInfo, AmendmentInfo WHERE CaskInfo.COC = COCInfo.COCID AND CaskInfo.Amendment = AmendmentInfo.AmendmentID", myConnection)
Dim ds As New DataSet()
ad.Fill(ds, "CaskInfo")
Using this connection code:Function CreateConnection2() As SqlConnection
Dim conn2 As SqlConnection = New SqlConnectionconn2.ConnectionString = ConfigurationManager.ConnectionStrings("MainWeb").ConnectionString
conn2.Open()Return conn2
End Function
And this is the line in the web.config:
<add name="MainWeb" connectionString="Data Source=N2K3APPS;Initial Catalog=NUTUGData;Integrated Security=false;Pooling=False;User Id=ext_access;password=zzzzzzz" providerName=".NET Framework Data Provider for SQL Server"/>
Thanks!
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Apr 2, 2004
I have searched all the forums on this issue and tried the other options but nothing seems to work. I have an IIS server using asp.net to connect to a SQL database on a separate server which also happens to be a domain controller(i.e. no local accounts). I have tried changing the connection string, web.config, etc. but I still can't get connected. I believe the issue is with the SQL security but I'm not sure.
IIs is set up for Integrated Windows Auth.
Here is the web.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<!-- application specific settings -->
<appSettings>
<add key="connectionString" value="Data Source=VGISQL2;Initial Catalog=PaymentApplication;Integrated Security=SSPI;" />
</appSettings>
<system.web>
<!-- DYNAMIC DEBUG COMPILATION
Set compilation debug="true" to enable ASPX debugging. Otherwise, setting this value to
false will improve runtime performance of this application.
Set compilation debug="true" to insert debugging symbols (.pdb information)
into the compiled page. Because this creates a larger file that executes
more slowly, you should set this value to true only when debugging and to
false at all other times. For more information, refer to the documentation about
debugging ASP.NET files.
-->
<compilation
defaultLanguage="c#"
debug="true"
/>
<!-- CUSTOM ERROR MESSAGES
Set customErrors mode="On" or "RemoteOnly" to enable custom error messages, "Off" to disable.
Add <error> tags for each of the errors you want to handle.
"On" Always display custom (friendly) messages.
"Off" Always display detailed ASP.NET error information.
"RemoteOnly" Display custom (friendly) messages only to users not running
on the local Web server. This setting is recommended for security purposes, so
that you do not display application detail information to remote clients.
-->
<customErrors
mode="Off"
/>
<!-- AUTHENTICATION
This section sets the authentication policies of the application. Possible modes are "Windows",
"Forms", "Passport" and "None"
"None" No authentication is performed.
"Windows" IIS performs authentication (Basic, Digest, or Integrated Windows) according to
its settings for the application. Anonymous access must be disabled in IIS.
"Forms" You provide a custom form (Web page) for users to enter their credentials, and then
you authenticate them in your application. A user credential token is stored in a cookie.
"Passport" Authentication is performed via a centralized authentication service provided
by Microsoft that offers a single logon and core profile services for member sites.
-->
<authentication mode="Windows" />
<!-- AUTHORIZATION
This section sets the authorization policies of the application. You can allow or deny access
to application resources by user or role. Wildcards: "*" mean everyone, "?" means anonymous
(unauthenticated) users.
-->
<authorization>
<allow users="*" /> <!-- Allow all users -->
<!-- <allow users="[comma separated list of users]"
roles="[comma separated list of roles]"/>
<deny users="[comma separated list of users]"
roles="[comma separated list of roles]"/>
-->
</authorization>
<!-- APPLICATION-LEVEL TRACE LOGGING
Application-level tracing enables trace log output for every page within an application.
Set trace enabled="true" to enable application trace logging. If pageOutput="true", the
trace information will be displayed at the bottom of each page. Otherwise, you can view the
application trace log by browsing the "trace.axd" page from your web application
root.
-->
<trace
enabled="true"
requestLimit="10"
pageOutput="false"
traceMode="SortByTime"
localOnly="false"
/>
<!-- SESSION STATE SETTINGS
By default ASP.NET uses cookies to identify which requests belong to a particular session.
If cookies are not available, a session can be tracked by adding a session identifier to the URL.
To disable cookies, set sessionState cookieless="true".
-->
<sessionState
mode="InProc"
stateConnectionString="tcpip=127.0.0.1:42424"
sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes"
cookieless="false"
timeout="20"
/>
<!-- GLOBALIZATION
This section sets the globalization settings of the application.
-->
<globalization
requestEncoding="utf-8"
responseEncoding="utf-8"
/>
<!-- ADDED BY YURI -->
<identity impersonate="true" />
</system.web>
</configuration>
HELP!!!!!!!!!!!!!!
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Apr 23, 2007
I have lots of problems with the connection. I've connected many dropdownlists to the database and i didn't have problems at all. I also try an example of an ASP.NET book:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString= "<%$ ConnectionStrings:CIPPEC%>"
InsertCommand=
"INSERT INTO
[member] ([first_name], [last_name], [malefemale], [yearborn])
VALUES
(@first_name, @last_name, @malefemale, @yearborn)">
<InsertParameters>
<asp:FormParameter Name="first_name" Type="String"
FormField="FirstTextBox" />
<asp:FormParameter Name="last_name" Type="String"
FormField="LastTextbox"/>
<asp:FormParameter Name="malefemale" Type="Int32"
FormField="MFRadioButton" />
<asp:FormParameter Name="yearborn" Type="Int32"
FormField="YearDropDown" />
</InsertParameters>
</asp:SqlDataSource>
And it worked well. But when i try to connect my page with:
Dim connect As New Data.SqlClient.SqlConnection( _
"Server=glgrand-arSQLEXPRESS;UID="WindowsStartupUser";password="WindowsStartupPass"; database=CIPPEC")
connect.Open()
Dim cmd As New Data.SqlClient.SqlCommand( _
"INSERT PRUEBA (PersonaJuridica, NombreRazonSocial, Nombre, Segundo_nombre, Apellido) " & _
"VALUES (txtPerJur, txtRazSoc, txtName, txtSecondName, txtApellido)", _
connect)
cmd.ExecuteNonQuery()
connect.Close()
The error message says: Login failed for user 'username'.
I tried lots of things but it didn't work:
In SQL Configuration Manager:
Client Protocols: TCP/IP and Named Pipes are enabled.
In SQL 2005 Services: Server Properties: Built-in Account: Local System
SQL Server Surface Area Configuration: Remote connections: Using both TCP/IP and Name Pipes connection is selected.
In SQL Management Studio i created a new login glgrand-ar/UserStartupName , with sysadmin server role and user mapping my CIPPEC database.
I don't know what else i could try, i tried it at home and at work and i couldn't connect to my database and make an INSERT. It stops at Connect.Open() with the error that i wrote in this subject message.
It's evident that i'm doing something wrong (because i'm new): Could you please help me with a solution and explain me what are the data that i have to put on the Data.SqlClient.SqlConnection ?? I'm using the Windows authentication: i'm putting my username and password and it doesn't worked.
Thank you!!
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May 26, 2007
trying to connect to sql server 2005 over the internet. (its a third paty hosting company i'm using)
so i have to connect via tcp/ip using sql server authentication.
my laptop is running vista.
the version of sql server 2005 on my laptopis developer edition with service pack 2.
it worked fine from windows xp and the connection details are valid as it runa fine from .net on the hosting website.
i have added sql serer managemnt studio to the exceptions list in the firewall.
ihave made sure tcpip is enabled in the sql server connection management console.
i have also enabled it in the cliconfg tool
firewall on/off seems to make no difference.
its almost enough to make you turn to oracle and thats saying something considering how long i've been in the microsoft camp...
the error returned is:
Login failed for user 'SQL2005_152092_garethbowen'. (.Net SqlClient Data Provider)
------------------------------
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476
------------------------------
Server Name: 'xxxx',1433
Error Number: 18456
Severity: 14
State: 1
Line Number: 65536
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Sep 30, 2004
While making a connection to a SQL server Enterprise Database using ASP.Net(C#), during execution of .aspx file i got the following error :-
Kindly help me if anybody knows the solution .
Thanks in advance
Login failed for user 'IT-CELLIWAM_IT-SERVER'.
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: Login failed for user 'IT-CELLIWAM_IT-SERVER'.
Source Error:
Line 52: //mycommand.SelectCommand.CommandType=CommandType.StoredProcedure;
Line 53: DataSet ds=new DataSet();
Line 54: mycommand.Fill(ds);
Line 55: DataTable dt;
Line 56: dt=new DataTable();
Source File: c:inetpubwwwrootetapplogin.aspx.cs Line: 54
Stack Trace:
[SqlException: Login failed for user 'IT-CELLIWAM_IT-SERVER'.]
System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction) +484
System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction) +372
System.Data.SqlClient.SqlConnection.Open() +384
System.Data.Common.DbDataAdapter.QuietOpen(IDbConnection connection, ConnectionState& originalState) +44
System.Data.Common.DbDataAdapter.FillFromCommand(Object data, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +304
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +77
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) +38
netapp.login.Page_Load(Object sender, EventArgs e) in c:inetpubwwwrootetapplogin.aspx.cs:54
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +731
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May 17, 2006
Hi all,
Can someone explain it to me why I am getting the following error when I try to connect SQL server express with .NET 2.0?
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: Login failed for user ''. The user is not associated with a trusted SQL Server connection.Here is my code and i am using windows authentication:
<%@ Import Namespace="System.Data" %><%@ Import Namespace="System.Data.SqlClient" %>
<%
Dim connAkaki As SqlConnection Dim cmdSelectAuthers As SqlCommand Dim dtrAuthers As SqlDataReader connAkaki = New SqlConnection("Server=.SQLEXPRESS;database=akaki") connAkaki.Open() cmdSelectAuthers = New SqlCommand("select Firstname from UserTableTest", connAkaki) dtrAuthers= cmdSelectAuthers.ExecuteReader() While dtrAuthers.Read() Response.Write("<li>") Response.Write(dtrAuthers("Firstname")) End While dtrAuthers.Close() connAkaki.Close() %>
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Oct 27, 2004
Hi,
Im getting this error when attempting to retrieve data from an sql database.
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: Cannot open database requested in login 'projectAllocations'. Login fails. Login failed for user 'sa'.
Source Error:
Line 13: objConn = New SqlConnection( "Server=LAB303-066NETSDK; Database=projectAllocations; User ID=sa;Password=mypassword")
Line 14: objCmd = New SqlCommand("SELECT * FROM project_descriptions", objConn)
Line 15: objConn.Open()
Line 16: objRdr = objCmd.ExecuteReader()
Line 17: While objRdr.Read()
Source File: C:finalyearproject2sample.aspx Line: 15
Please Help!! Im a beginner to this, so if anyone knows the answer, take baby steps when explaining. Thanks
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Jul 27, 2005
Been looking through the forums for a solution to this problem.I already tried granting access through statements such as:exec sp_grantloginaccess N1'machineNameASPNET'But they don't seem to work.. i vaguely remember seeing somewhere a DOS command line statement that grants access to the ASPNET_WP and that fixed my problem before on another computer.. but this is a new computer and i forgot to write down the command.Can anyone help explain and propose a solution to my problem. Many thanxs.
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Dec 19, 2003
I am using the MSDE to connect to my ASP.NET application. I get this error after clicking the login button of my login page. Anyone know why this would happen?
Thanks for any help,
Cannot open database requested in login 'DataSQL'. Login fails. Login failed for user 'serverASPNET'.
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Mar 18, 2007
hi,
so i have a new box and I'm trying to get my websites and SQL Server 2005 Standard Edition working on it, but the pages give me the following error when I try to load them:
"Cannot Open Database "XXXX" requested by login. The login failed. Login failed for user 'xxx'"
Everything seems exactly the same settings and user-wise from my old box to my new one, but nevertheless everything I've tried gives me the same error.
I've tried creating new users in SQL Server and giving them appropriate permissions to my database. I've even tried just using the built in 'sa' account. Nothing seems to change the error, except when I give it the incorrect password then it just says 'login failed'
This leads me to believe that i'm successfully logging into the SQL Server, but it doesn't want to give me access to the database I'm requesting access too. But "apparently" the account i'm using should have access to the database. If nothing else the 'sa' account should, but that didn't work either.
I'm stumped. Any ideas?
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May 17, 2006
Hi Experts
I'm facing a weird problem with asp.net application and windows 2000 based client PC having IE 6.0 SP1, i have asp.net web application which have a form that have a facility to search for customer using its ID and application will bring the data from the database that record and users will be able to update the record.
Once updated, then i just want to query data for same customer id, application is not bringing updated record from the database but it showing the old record and once the IE closed and reloaded then it shows the correct record.
The same feature works fine, under windows xp machine having IE 6.0 SP2, that proves that there is no problem with my application or code but its windows 2000 client having problem.
I tried to update the windows 2000 machine with all the patches from microsoft but no success same problem.
Any help on this issue will much appreciated.
Regards
Bhavesh
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Jul 24, 2007
Hi guys,
Since the project that i'm developing is rapidly increasing, the pages seems to be getting slower everytime you view it. I would like to ask if code below would be efficient enough for several simultaneous request of data or if you have any other suggestions, you are welcome to add:
1 Public Shared Function QueryDatabase(ByVal sql As String) As DataTable2 3 ' SQL Server Connection Object Variable4 Dim _oConnection As SqlConnection5 ' SQL Server Command Object Variable6 Dim _oCommand As SqlCommand7 ' SQL Server Data Adapter Object Variable8 Dim _oAdapter As SqlDataAdapter9 ' DataTable Object Variable (Early Binding)10 Dim _oDataTable As New DataTable11 12 ' Instantiate Connection Object with connection string13 _oConnection = New SqlConnection("Data Source=XXX.XXX.XXX.XXX;Initial Catalog=XXXXXX;User=XXX;Pwd=XXX;")14 ' Instantiate Command Object with SQL String and Connection Object15 _oCommand = New SqlCommand(sql, _oConnection)16 ' Instantiate Data Adapter Object with Command Object17 _oAdapter = New SqlDataAdapter(_oCommand)18 ' Fill the DataTable Object with the retrieve records19 _oAdapter.Fill(_oDataTable)20 21 ' Release resources used by DataAdapter Object22 _oAdapter.Dispose()23 24 ' Release resources used by Command Object25 _oCommand.Dispose()26 27 ' Close the connection of the Connection Object from SQL Server28 _oConnection.Close()29 30 ' Release resources used by Connection Object31 _oConnection.Dispose()32 33 ' Return the retrieve records34 Return _oDataTable35 36 End Function Thanks a lot.
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Mar 4, 2008
Hi All: I'm having problems creating a data connection between a windows 2000 server running .net 2.0 and a sql2005 server (server2003). I'm trying to create a connection in VWD2005 express, and when I use the visual wizard, I get a connection error with something about "named pipes" when I'm trying to connect using an alias on the server that uses tcp/ip (the alias is created in cliconfg).
If I click on "advanced properties" in the connection, and I select "TCP/IP" for the Network Library, what's displayed is "TCP/IP (DBMSGNET)" ...but shouldn't it say "DMBSSOCN"?
I'm wondering if this is correct, or a cosmetic bug in the .net sqlclient GUI, or indicative of any underlying problem that's preventing me from creating the connection?
If I manually override the connection string in web.config by entering "Network Library: DBMSSOCN", I still can't connect, getting a timeout error that the sql2005 server is not responding. But I know the server is working properly, with other .NET DB connections working within the same application...so I'm thinking this must be a problem with VWD and/or the .net framework on my local computer (not the server)?
I don't know where to begin to look to debug this problem?
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Mar 6, 2005
Hi.
Somewhere around I find a message, which affirmed that for perfonmance it is better to use OleDb for SQL 6.5. Is this true?.
Then el SqlClient, only have perfomance in SQL 2000?
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Feb 29, 2008
I am porting a VB.NET application using Access as its backend to use SQL Express as its new backend.
The application uses .NET 2.0 OleDbProvider to connect to the database.
The porting of the database itself to Sql Express is nearly complete, now I need to modify the application.
So, does it really make sense to modify it to use Native Sql Client instead of OleDb in terms of effort & benefits???
Moreover, if I continue using OleDb, would I need to make such small changes to embedded Sql statements like using single quotes around strings or dates instead of double quotes or pound symbols that are currently being used for String or date data respectively???
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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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May 15, 2008
hi, I want to work with a recordset/cursor with sqlserver sqlclient, I have a sqlconnection and sqlcommand, I need to scroll forward and back.
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Jan 17, 2008
Hi,
Can I use SqlCe v3.1 and SqlClient v2.0 in one .net application? (Note: I can't use RDA or replication. SqlClient read and write data in ON-LINE mode, SqlCe store and manipulate with data in OFF-LINE mode.)
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Apr 16, 2008
I'm running into a blocking problem on my SQL 2000 server. I have a table that is frequently read/written to (inserts, updates, deletes) -- I don't place any explicity locks but I do a SELECT @@Identity after I insert a record to get the Identity value via a sqlCommand.ExecuteScalar.
So my questions:
#1 Is blocking normal? (40-90 blocks consistantly - 350 or so client connections)
#2 Is there any better coding solution to avoid blocks?
#3 I need to get the Identity value after the recorded is added and I thought ExecuteScalar is the fastest and least overhead, put perhaps I'm wrong?
Any suggestions or hints welcome.
Thanks, Rob.
.NET 2.0
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Oct 14, 2005
Hi,
I've been doing some work with nested TransactionScope classes and timeouts and I'm getting some strange results that I can't quite explain. I'm hoping that I've done something foolish in my code, since that will be by far the easiest fix :)
The scenario is that I have a stored procedure that may block indefinately (arguably not great, but it's outside of my control) - in the example below, it does a simple "waitfor" to pause for 3 seconds. There is a intermediate data layer between my application code and the database that wraps all database calls in a TransactionScope (essentially the ExecCommand method in the example). At the application layer, we create a TransactionScope with a timeout, then call into the data layer to perform the query (the application layer is the Main method in the example).
The behaviour I'm seeing is that the initial call will block within SQL Server until the current executing SQL command completes (in this case, the waitfor). At that point, the batch is terminated and control returns to the C#. Within the C# there are no errors until the outer TransactionScope is disposed; the only apparent way of detecting that the batch didn't complete is to examine the Transaction.Current.TransactionInformation.Status property. I can just about live with that (although would have prefered that the ExecuteNonQuery had thrown); the example checks this status property and throws an exception if it's bad.
So far, so good. It all goes very wrong if I attempt to make another call. If the connection has the "connection reset" property set to false, then the second call fails immediately with a "transaction in doubt" error. If the "connection reset" property is set to true, then the second call completes successfully, except the database doesn't get called! (In profiler, you see the exec os sp_reset_connection, but that's all). It all looks as if I've not tidied up properly, but I'm not sure what I've missed. To add some spice, putting a 1 second sleep before the Execute makes everything work as expected.
The sample code is below; sorry if it's a little large. There a connection string right at the top that you may need to tweak. It creates a stored procedure in the initial catalog; see line 95 for details - it's nothing offensive! The sample compiles just fine from the command line with no special options needed.
Finally, I'm running .Net v2.0.50727 and the Sept. CTP of SQL Server 2005.
Here's hoping someone can tell me what I've done wrong!
Cheers,
Steve
using System;
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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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