System.Data.SqlClient.SqlException: An Error Has Occurred While Establishing A Connection To The Server.

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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An Unhandled Exception Occurred During The System.Data.SqlClient.SqlException: Login Failed For User 'IT-CELLIWAM_IT-SERVER'.

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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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

}
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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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System.Data.SqlClient.SqlException: SSL Security Error

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?



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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 17, 2006

 
Hi all,
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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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Apr 8, 2008

Hi,
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 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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Aug 31, 2004

Hi There,

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I'm also using the following lines to prepare my stored procedure call:

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Hi everybody,

We are developing Asp.Net Application in following environment.

Windows 2003
Dot Net 2003
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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.

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We have tried same connection string with the VB.Net program. It is working fine.

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Can any one help me ?

Thanks is advance.


From

Jigar Shah

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Hi all

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hai friends.............
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Hi, friends 
this is my error...:( 
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ı just wanna upload my web site and ı wanna see working, web.config file is my big problem ı didn't solve web.config file
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May 3, 2007

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Jan 22, 2008

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Server Error in '/ph' 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)
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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)

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May 3, 2008

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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

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'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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