SqlError Class
Assembly: System.Data (in system.data.dll)
This class is created by the .NET Framework Data Provider for SQL Server when an error occurs. An instance of SqlError is created and managed by the SqlErrorCollection, which in turn is created by the SqlException class.
Messages with a severity level of 10 or less are informational and indicate problems caused by mistakes in information that a user has entered. Severity levels from 11 through 16 are generated by the user, and can be corrected by the user. Severity levels from 17 through 25 indicate software or hardware errors. When a level 17, 18, or 19 error occurs, you can continue working, although you might not be able to execute a particular statement.
The SqlConnection remains open when the severity level is 19 or less. When the severity level is 20 or greater, the server usually closes the SqlConnection. However, the user can reopen the connection and continue. In both cases, a SqlException is generated by the method executing the command.
The following example displays each SqlError within the SqlErrorCollection collection.
Public Sub ShowSqlException(ByVal connectionString As String) Dim queryString As String = "EXECUTE NonExistantStoredProcedure" Using connection As New SqlConnection(connectionString) Dim command As New SqlCommand(queryString, connection) Try command.Connection.Open() command.ExecuteNonQuery() Catch ex As SqlException DisplaySqlErrors(ex) End Try End Using End Sub Private Sub DisplaySqlErrors(ByVal exception As SqlException) Dim i As Integer For i = 0 To exception.Errors.Count - 1 Console.WriteLine("Index #" & i & ControlChars.NewLine & _ "Error: " & exception.Errors(i).ToString() & ControlChars.NewLine) Next i Console.ReadLine() End Sub
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.