DataRow.RowError 属性

定义

命名空间:

System.Data

程序集:

System.Data.Common.dll

Source:

DataRow.cs

获取或设置行的自定义错误说明。

public:
 property System::String ^ RowError { System::String ^ get(); void set(System::String ^ value); };

public string RowError { get; set; }

member this.RowError : string with get, set

Public Property RowError As String

属性值

String

描述错误的文本。

示例

以下示例为控件中显示的 DataGrid 表的十行设置错误文本。

private void SetRowErrors(DataTable table)
{
    // Set error text for ten rows.
    for(int i = 0; i < 10; i++)
    {
        // Insert column 1 value into each error.
        table.Rows[i].RowError = "ERROR: "
            + table.Rows[i][1];
    }
    // Get the DataSet for the table, and test it for errors.
    DataSet dataSet = table.DataSet;
    TestForErrors(dataSet);
}

private void TestForErrors(DataSet dataSet)
{
    // Test for errors. If DataSet has errors, test each table.
    if(dataSet.HasErrors)
    {
        foreach(DataTable tempDataTable in dataSet.Tables)
        {
            // If the table has errors, then print them.
            if(tempDataTable.HasErrors)
                PrintRowErrs(tempDataTable);
        }
        // Refresh the DataGrid to see the error-marked rows.
        dataGrid1.Refresh();
    }
}

private void PrintRowErrs(DataTable table)
{
    foreach(DataRow row in table.Rows)
    {
        if(row.HasErrors)
        {
            Console.WriteLine(row.RowError);
        }
    }
}

Private Sub SetRowErrors(ByVal table As DataTable)
    ' Set error text for ten rows. 
    Dim i As Integer
    For i = 0 to 10
        ' Insert column 1 value into each error.
        table.Rows(i).RowError = "ERROR: " & _
            table.Rows(i)(1).ToString()
    Next
    ' Get the DataSet for the table, and test it for errors.
    Dim dataSet As DataSet = table.DataSet
    TestForErrors(dataSet)
End Sub
 
Private Sub TestForErrors(ByVal dataSet As DataSet)
    ' Test for errors. If DataSet has errors, 
    ' test each table.
    If dataSet.HasErrors
        Dim tempDataTable As DataTable
        For Each tempDataTable in dataSet.Tables
            ' If the table has errors, then print them.
            If(tempDataTable.HasErrors) Then 
                PrintRowErrs(tempDataTable)
            End If
        Next
        ' Refresh the DataGrid to see the error-marked rows.
        DataGrid1.Refresh()
    End If
End Sub
 
Private Sub PrintRowErrs(ByVal table As DataTable)
    Dim row As DataRow
    For Each row in table.Rows
       If(row.HasErrors) Then
          Console.WriteLine(row.RowError)
       End If
    Next
End Sub

注解

HasErrors使用 属性首先确定 是否DataRow包含错误。

另请参阅

• SetColumnError(Int32, String)
• HasErrors