SqlCeErrorCollection.Count 屬性

取得集合中的 SqlCeError 物件數目。

命名空間：  System.Data.SqlServerCe
組件：  System.Data.SqlServerCe (在 System.Data.SqlServerCe.dll 中)

語法

'宣告
Public ReadOnly Property Count As Integer
    Get
'用途
Dim instance As SqlCeErrorCollection
Dim value As Integer

value = instance.Count

public int Count { get; }

public:
virtual property int Count {
    int get () sealed;
}

abstract Count : int
override Count : int

final function get Count () : int

屬性值

型別：System.Int32
集合中的 SqlCeError 物件總數。

實作

ICollection.Count

範例

下列範例會顯示 SqlCeErrorCollection 集合中的每個 SqlCeError。

Public Sub DisplaySqlCeErrors(ByVal errorCollection As SqlCeErrorCollection)

    Dim err As SqlCeError
    Dim bld As New StringBuilder()

    For Each err In errorCollection
        bld.Append((ControlChars.Cr & " Error Code: " & err.HResult.ToString("X")))
        bld.Append((ControlChars.Cr & " Message   : " & err.Message))
        bld.Append((ControlChars.Cr & " Minor Err.: " & err.NativeError))
        bld.Append((ControlChars.Cr & " Source    : " & err.Source))

        Dim numPar As Integer
        For Each numPar In err.NumericErrorParameters
            If 0 <> numPar Then
                bld.Append((ControlChars.Cr & " Num. Par. : " & numPar))
            End If
        Next numPar

        Dim errPar As String
        For Each errPar In err.ErrorParameters
            If [String].Empty <> errPar Then
                bld.Append((ControlChars.Cr & " Err. Par. : " & errPar))
            End If
        Next errPar

        MessageBox.Show(bld.ToString())
        bld.Remove(0, bld.Length)
    Next err

End Sub 'DisplaySqlCeErrors

public void DisplaySqlCeErrors(SqlCeErrorCollection errorCollection ) {
    StringBuilder bld = new StringBuilder();

    foreach (SqlCeError err in errorCollection) {
        bld.Append("\n Error Code: " + err.HResult.ToString("X"));
        bld.Append("\n Message   : " + err.Message);
        bld.Append("\n Minor Err.: " + err.NativeError);
        bld.Append("\n Source    : " + err.Source);

        foreach (int numPar in err.NumericErrorParameters) {
            if (0 != numPar) bld.Append("\n Num. Par. : " + numPar);
        }

        foreach (string errPar in err.ErrorParameters) {
            if (String.Empty != errPar) bld.Append("\n Err. Par. : " + errPar);
        }

        MessageBox.Show(bld.ToString());
        bld.Remove(0, bld.Length);
    }
}

請參閱

參考

SqlCeErrorCollection 類別

System.Data.SqlServerCe 命名空間