SqlErrorCollection.Item[Int32] 屬性

定義

命名空間:

System.Data.SqlClient

組件:

System.Data.dll

取得在指定之索引處的錯誤。

public:
 property System::Data::SqlClient::SqlError ^ default[int] { System::Data::SqlClient::SqlError ^ get(int index); };

public System.Data.SqlClient.SqlError this[int index] { get; }

member this.Item(int) : System.Data.SqlClient.SqlError

Default Public ReadOnly Property Item(index As Integer) As SqlError

參數

index

Int32

要擷取的錯誤之以零起始索引。

屬性值

SqlError

SqlError，含有在指定之索引處的錯誤。

例外狀況

IndexOutOfRangeException

索引參數是在陣列界限之外。

範例

下列範例會顯示集合內的每一 SqlError 個 SqlErrorCollection 。

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

另請參閱

• Count
• ADO.NET 概觀 \(部分機器翻譯\)