Hello I need some help please.
I created a connection string in my web config. I then tried to call it in one of my c# pages but I get a "System.InvalidOperationException: Instance failure" every time I run it.
Please review my code and let me know what I am doing wrong.
Thank you in advance for all the help
Web Config
<
appSettings>
<
addkey="AVConnection"value="Server=Server; Database=DB; User ID=sa; Password=PWD" />
</appSettings>
//////calling connection and running a simple SQL statment///////
protected void Page_Load(object sender, EventArgs e)
{
string ConnApp;
ConnApp = System.Configuration.ConfigurationManager.AppSettings["AVConnection"];
Response.Write(ConnApp);//the string is being passed this far
SqlConnection objConn = new SqlConnection(ConnApp);
SqlCommand sqlCMD = new SqlCommand("Select * FROM Employee", objConn);
objConn.Open();//this is where the error occures
SqlDataReader objRdr = sqlCMD.ExecuteReader();
Repeater1.DataSource = objRdr;
Repeater1.DataBind();
objConn.Close();
objRdr.Close();
}
ERROR PAGE
Line 29: SqlCommand sqlCMD = new SqlCommand("Select * FROM Employee", objConn);
Line 30:
Line 31: objConn.Open();
Line 32: SqlDataReader objRdr = sqlCMD.ExecuteReader();
Line 33: Repeater1.DataSource = objRdr;
[InvalidOperationException: Instance failure.]
System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) +683775
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +359
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
employeelist.Page_Load(Object sender, EventArgs e) in c:\Inetpub\wwwroot\FAUAV\employeelist.aspx.cs:31
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061
Don't know how much of a difference this might make, but have you tried putting the connection string in the connectionStrings node of web.config? If not you might as well do that as that's why it exists.
Ryan
|||
I tried that but it did not change anything.
Thanks for the advice
