DataRow.RowError 屬性

定義

取得或設定資料列的自訂錯誤描述。Gets or sets the custom error description for a row.

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

屬性值

描述錯誤的文字。The text describing an error.

範例

下列範例會針對 DataGrid 控制項中所顯示的資料表,設定10個數據列的錯誤文字。The following example sets error text for ten rows of a table displayed in a DataGrid control.

   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

備註

會使用 HasErrors 屬性,先判斷 DataRow 是否包含錯誤。Uses the HasErrors property to first determine whether a DataRow contains errors.

適用於

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