SqlError.Number Property

Definition

Namespace:

System.Data.SqlClient

Assembly:

System.Data.dll

Gets a number that identifies the type of error.

public:
 property int Number { int get(); };

public int Number { get; }

member this.Number : int

Public ReadOnly Property Number As Integer

Property Value

Int32

The number that identifies the type of error.

Examples

The following example displays each SqlError within the SqlErrorCollection collection.

public void DisplaySqlErrors(SqlException exception)
{
    for (int i = 0; i < exception.Errors.Count; i++)
    {
        Console.WriteLine("Index #" + i + "\n" +
            "Source: " + exception.Errors[i].Source + "\n" +
            "Number: " + exception.Errors[i].Number.ToString() + "\n" +
            "State: " + exception.Errors[i].State.ToString() + "\n" +
            "Class: " + exception.Errors[i].Class.ToString() + "\n" +
            "Server: " + exception.Errors[i].Server + "\n" +
            "Message: " + exception.Errors[i].Message + "\n" +
            "Procedure: " + exception.Errors[i].Procedure + "\n" +
            "LineNumber: " + exception.Errors[i].LineNumber.ToString());
    }
    Console.ReadLine();
}

Public Sub DisplaySqlErrors(ByVal exception As SqlException)
    Dim i As Integer

    For i = 0 To exception.Errors.Count - 1
        Console.WriteLine(("Index #" & i & ControlChars.NewLine & _
            "Source: " & exception.Errors(i).Source & ControlChars.NewLine & _
            "Number: " & exception.Errors(i).Number.ToString() & ControlChars.NewLine & _
            "State: " & exception.Errors(i).State.ToString() & ControlChars.NewLine & _
            "Class: " & exception.Errors(i).Class.ToString() & ControlChars.NewLine & _
            "Server: " & exception.Errors(i).Server & ControlChars.NewLine & _
            "Message: " & exception.Errors(i).Message & ControlChars.NewLine & _
            "Procedure: " & exception.Errors(i).Procedure & ControlChars.NewLine & _
            "LineNumber: " & exception.Errors(i).LineNumber.ToString()))
    Next i
    Console.ReadLine()
End Sub

Remarks

The following table describes the possible values for this property:

Source of Error	SqlError.Number	SqlError.State	SqlException has inner Win32Exception (beginning with.NET Framework 4.5)
Error from server	Server error code This number corresponds to an entry in the master.dbo.sysmessages table.	Typically greater than 0	No
Connection timeout	-2	0	Yes (Number = 258)
Communication error (non-LocalDB)	Win32 error code	0	Yes (Number = Win32 error code)
Communication error (LocalDB)	Win32 error code	0	No
Encryption capability mismatch	20	0	No
Failed to start LocalDB	Win32 error code	0	No
Read-only routing failure	0	0	No
Server had severe error processing query	0	0	No
Processed cancellation while parsing results	0	0	No
Failed to create user instance	0	0	No

For more information on errors generated by SQL Server, see Database Engine Events and Errors.

See also

• ADO.NET Overview