DataGridBoolColumn.TrueValueChanged-Ereignis

Tritt ein, wenn die TrueValue-Eigenschaft geändert wird.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

Syntax

'Declaration
Public Event TrueValueChanged As EventHandler
'Usage
Dim instance As DataGridBoolColumn
Dim handler As EventHandler

AddHandler instance.TrueValueChanged, handler

public event EventHandler TrueValueChanged

public:
event EventHandler^ TrueValueChanged {
    void add (EventHandler^ value);
    void remove (EventHandler^ value);
}

/** @event */
public void add_TrueValueChanged (EventHandler value)

/** @event */
public void remove_TrueValueChanged (EventHandler value)

JScript unterstützt die Verwendung von Ereignissen, aber nicht die Deklaration von neuen Ereignissen.

Hinweise

Weitere Informationen zum Behandeln von Ereignissen finden Sie unter Behandeln von Ereignissen.

Beispiel

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 'RegisterEventHandlers


' 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 'myDataGridBoolColumn_TrueValueChanged


' 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 'myDataGridBoolColumn_FalseValueChanged


' 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 'myDataGridBoolColumn_AllowNullChanged

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);
}

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.add_AllowNullChanged(new System.
        EventHandler(myDataGridBoolColumn_AllowNullChanged));
    myDataGridBoolColumn.add_TrueValueChanged(new System.
        EventHandler(myDataGridBoolColumn_TrueValueChanged));
    myDataGridBoolColumn.add_FalseValueChanged(new System.
        EventHandler(myDataGridBoolColumn_FalseValueChanged));
} //RegisterEventHandlers

// 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.get_TrueValue());
} //myDataGridBoolColumn_TrueValueChanged

// 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.get_FalseValue());
} //myDataGridBoolColumn_FalseValueChanged

// 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.get_AllowNull());
} //myDataGridBoolColumn_AllowNullChanged

Plattformen

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile für Pocket PC, Windows Mobile für Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

DataGridBoolColumn-Klasse
DataGridBoolColumn-Member
System.Windows.Forms-Namespace