DataGridColumnStyle.CheckValidDataSource(CurrencyManager) Méthode

Définition

Espace de noms:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll
Source:
DataGridColumnStyle.cs
Source:
DataGridColumnStyle.cs

Lève une exception si la DataGrid source de données n’a pas de source de données valide ou si cette colonne n’est pas mappée à une propriété valide dans la source de données.

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)

Paramètres

value
CurrencyManager

A CurrencyManager vérifier.

Exceptions

ArgumentNullException

value a la valeur null.

ApplicationException

Pour PropertyDescriptor cette colonne, il s’agit nullde .

Exemples

L’exemple de code suivant obtient une CurrencyManager source de données et utilise la CheckValidDataSource méthode pour déterminer si elle CurrencyManager est valide.

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

S’applique à