DataGridBoolColumn.TrueValueChanged Evento

Referência

Definição

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Importante

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Ocorre quando o valor da propriedade TrueValue é alterado.

public:
 event EventHandler ^ TrueValueChanged;

public event EventHandler TrueValueChanged;

member this.TrueValueChanged : EventHandler

Public Custom Event TrueValueChanged As EventHandler

Tipo de evento

EventHandler

Exemplos

O exemplo de código a seguir demonstra o uso desse membro.

void RegisterEventHandlers( DataGridBoolColumn^ myDataGridBoolColumn )
{
   myDataGridBoolColumn->AllowNullChanged += gcnew System::EventHandler( this, &MyForm::myDataGridBoolColumn_AllowNullChanged );
   myDataGridBoolColumn->TrueValueChanged += gcnew System::EventHandler( this, &MyForm::myDataGridBoolColumn_TrueValueChanged );
   myDataGridBoolColumn->FalseValueChanged += gcnew System::EventHandler( this, &MyForm::myDataGridBoolColumn_FalseValueChanged );
}

// Event handler for event when 'TrueValue' is property changed.
void myDataGridBoolColumn_TrueValueChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
   MessageBox::Show( String::Concat( "The TrueValue property of the DataGridBoolColumn has been changed to ", myDataGridBoolColumn->TrueValue ) );
}

// Event handler for event when 'FalseValue' is property changed.
void myDataGridBoolColumn_FalseValueChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
   MessageBox::Show( String::Concat( "The FalseValue property of the DataGridBoolColumn has been changed to ", myDataGridBoolColumn->FalseValue ) );
}

// Event handler for event when 'AllowNull' is property changed.
void myDataGridBoolColumn_AllowNullChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
   MessageBox::Show( String::Concat( "The AllowNull property of DataGridBoolColumn has been changed to ", myDataGridBoolColumn->AllowNull ) );
}


private void RegisterEventHandlers(DataGridBoolColumn myDataGridBoolColumn)
{
   myDataGridBoolColumn.AllowNullChanged += 
      new System.EventHandler(myDataGridBoolColumn_AllowNullChanged);
   myDataGridBoolColumn.TrueValueChanged += 
      new System.EventHandler(myDataGridBoolColumn_TrueValueChanged);
   myDataGridBoolColumn.FalseValueChanged +=
      new System.EventHandler(myDataGridBoolColumn_FalseValueChanged);
}

// Event handler for event when 'TrueValue' is property changed.
private void myDataGridBoolColumn_TrueValueChanged(object sender, EventArgs e)
{
   MessageBox.Show("The TrueValue property of the DataGridBoolColumn has been changed to "
      + myDataGridBoolColumn.TrueValue);
}

// Event handler for event when 'FalseValue' is property changed.
private void myDataGridBoolColumn_FalseValueChanged(object sender, EventArgs e)
{
   MessageBox.Show("The FalseValue property of the DataGridBoolColumn has been changed to "
      + myDataGridBoolColumn.FalseValue);
}

// Event handler for event when 'AllowNull' is property changed.
private void myDataGridBoolColumn_AllowNullChanged(object sender, EventArgs e)
{
   MessageBox.Show("The AllowNull property of DataGridBoolColumn has been changed to "
      + myDataGridBoolColumn.AllowNull);
}

Private Sub RegisterEventHandlers(myDataGridBoolColumn As DataGridBoolColumn)
   AddHandler myDataGridBoolColumn.AllowNullChanged, _
                       AddressOf myDataGridBoolColumn_AllowNullChanged
   AddHandler myDataGridBoolColumn.TrueValueChanged, _
                       AddressOf myDataGridBoolColumn_TrueValueChanged
   AddHandler myDataGridBoolColumn.FalseValueChanged, _
                       AddressOf myDataGridBoolColumn_FalseValueChanged
End Sub


' Event handler for event when 'TrueValue' is property changed.
Private Sub myDataGridBoolColumn_TrueValueChanged(sender As Object, e As EventArgs)
   MessageBox.Show("The TrueValue property of the DataGridBoolColumn has been changed to " _
                                                 & myDataGridBoolColumn.TrueValue)
End Sub


' Event handler for event when 'FalseValue' is property changed.
Private Sub myDataGridBoolColumn_FalseValueChanged(sender As Object, e As EventArgs)
   MessageBox.Show("The FalseValue property of the DataGridBoolColumn has been changed to " _
                                                     & myDataGridBoolColumn.FalseValue)
End Sub


' Event handler for event when 'AllowNull' is property changed.
Private Sub myDataGridBoolColumn_AllowNullChanged(sender As Object, e As EventArgs)
   MessageBox.Show("The AllowNull property of DataGridBoolColumn has been changed to " _
                                                       & myDataGridBoolColumn.AllowNull)
End Sub

Comentários

Para obter mais informações sobre como lidar com eventos, consulte Manipulação e geração de eventos.

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