SqlError.ToString Metode

Definisi

Ruang nama:

System.Data.SqlClient

Rakitan:

System.Data.dll

Mendapatkan teks lengkap pesan kesalahan.

public:
 override System::String ^ ToString();

public override string ToString();

override this.ToString : unit -> string

Public Overrides Function ToString () As String

Mengembalikan

String

Teks lengkap kesalahan.

Contoh

Contoh berikut menampilkan masing-masing SqlError dalam SqlErrorCollection koleksi.

public static void ShowSqlException(string connectionString)
{
    string queryString = "EXECUTE NonExistantStoredProcedure";

    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        SqlCommand command = new SqlCommand(queryString, connection);
        try
        {
            command.Connection.Open();
            command.ExecuteNonQuery();
        }
        catch (SqlException ex)
        {
            DisplaySqlErrors(ex);
        }
    }
}

private static void DisplaySqlErrors(SqlException exception)
{
    for (int i = 0; i < exception.Errors.Count; i++)
    {
        Console.WriteLine("Index #" + i + "\n" +
            "Error: " + exception.Errors[i].ToString() + "\n");
    }
    Console.ReadLine();
}

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

Keterangan

String dalam bentuk "SqlError:", diikuti oleh Message, dan jejak tumpukan. Contohnya:

SqlError:UserId atau Password tidak valid. <pelacakan tumpukan>

Lihat juga

• Ringkasan ADO.NET