DataRow.RowError Vlastnost

Definice

Získá nebo nastaví vlastní popis chyby pro řádek.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

Hodnota vlastnosti

Text popisující chybuThe text describing an error.

Příklady

Následující příklad nastaví chybový text pro deset řádků tabulky zobrazené v DataGrid ovládacím prvku.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

Poznámky

Pomocí vlastnosti nejprve určí, zda DataRow obsahuje chyby. HasErrorsUses the HasErrors property to first determine whether a DataRow contains errors.

Platí pro

Viz také