Server Error in '/' Application.

The ConnectionString property has not been initialized.

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.InvalidOperationException: The ConnectionString property has not been initialized.

Source Error:


Line 20:         cmd = New SqlCommand(strSql, conn)
Line 21:         If conn.State = ConnectionState.Closed Then
Line 22:             conn.Open()
Line 23:         End If
Line 24:         readS = cmd.ExecuteReader()

Source File: F:\local\ictquangtr.vn\Update telerik\Upgrade\httpdocs\DesktopModules\tinvan\Print.aspx.vb    Line: 22

Stack Trace:


[InvalidOperationException: The ConnectionString property has not been initialized.]
   System.Data.SqlClient.SqlConnection.PermissionDemand() +7146133
   System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection) +30
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +312
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +202
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +413
   System.Data.SqlClient.SqlConnection.Open() +128
   httpdocs_DesktopModules_Ktxh_BMNhaplieu_Print.Getlich(Int32 idlich, Int32 thongtin) in F:\local\ictquangtr.vn\Update telerik\Upgrade\httpdocs\DesktopModules\tinvan\Print.aspx.vb:22
   httpdocs_DesktopModules_Ktxh_BMNhaplieu_Print.Page_Load(Object sender, EventArgs e) in F:\local\ictquangtr.vn\Update telerik\Upgrade\httpdocs\DesktopModules\tinvan\Print.aspx.vb:78
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4081.0