SqlCeErrorCollection.Count 属性

获取集合中的 SqlCeError 对象数。

命名空间：  System.Data.SqlServerCe
程序集：  System.Data.SqlServerCe（在 System.Data.SqlServerCe.dll 中）

语法

声明
Public ReadOnly Property Count As Integer
    Get
用法
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

属性值

类型：System.Int32
集合中的 SqlCeError 对象的总数。

实现

ICollection.Count

示例

下面的示例显示 SqlCeErrorCollection 中的每个 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);
    }
}

请参阅

参考

SqlCeErrorCollection 类

System.Data.SqlServerCe 命名空间