DataGridColumnStyle.CheckValidDataSource(CurrencyManager) Method

Reference

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Important

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Throws an exception if the DataGrid does not have a valid data source, or if this column is not mapped to a valid property in the data source.

protected:
 void CheckValidDataSource(System::Windows::Forms::CurrencyManager ^ value);

protected void CheckValidDataSource(System.Windows.Forms.CurrencyManager value);

member this.CheckValidDataSource : System.Windows.Forms.CurrencyManager -> unit

Protected Sub CheckValidDataSource (value As CurrencyManager)

Parameters

value: CurrencyManager

A CurrencyManager to check.

Exceptions

ArgumentNullException

The value is null.

ApplicationException

The PropertyDescriptor for this column is null.

Examples

The following code example gets a CurrencyManager for a data source and uses the CheckValidDataSource to determine if the CurrencyManager is valid.

private:
   void CheckCurrencyManager( CurrencyManager^ myCurrencyManager )
   {
      // This code is from a class named MyDataGridColumnStyle derived
      // from DataGridColumnStyle.
      MyDataGridColumnStyle^ myGridColumn = this;
      try
      {
         myGridColumn->CheckValidDataSource( myCurrencyManager );
      }
      catch ( ArgumentNullException^ e ) 
      {
         Console::WriteLine( e->Message );
      }
      catch ( ApplicationException^ e ) 
      {
         Console::WriteLine( e->Message );
      }
   }

private void CheckCurrencyManager(CurrencyManager myCurrencyManager) {
    // This code is from a class named MyDataGridColumnStyle derived
    // from DataGridColumnStyle.
    MyDataGridColumnStyle myGridColumn = this;
    try {
        myGridColumn.CheckValidDataSource(myCurrencyManager);
    }
    catch (ArgumentNullException e) {
        Console.WriteLine(e.Message);
    }
    catch (ApplicationException e) {
        Console.WriteLine(e.Message);
    }
}

Private Sub CheckCurrencyManager(myCurrencyManager As CurrencyManager)
    ' This code is from a class named MyDataGridColumnStyle derived
    ' from DataGridColumnStyle.
    Dim myGridColumn As MyDataGridColumnStyle = Me
    Try
        myGridColumn.CheckValidDataSource(myCurrencyManager)
    Catch e As ArgumentNullException
        Console.WriteLine(e.Message)
    Catch e As ApplicationException
        Console.WriteLine(e.Message)
    End Try
End Sub

Applies to

Produkt	Verzie
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 10

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