DataGrid.BackgroundColorChanged-Ereignis

Tritt ein, wenn die BackgroundColor geändert wurde.

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

Syntax

'Declaration
Public Event BackgroundColorChanged As EventHandler
'Usage
Dim instance As DataGrid
Dim handler As EventHandler

AddHandler instance.BackgroundColorChanged, handler

public event EventHandler BackgroundColorChanged

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

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

/** @event */
public void remove_BackgroundColorChanged (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

Im folgenden Codebeispiel werden der Wert der BackgroundColor-Eigenschaft von Gelb in Rot geändert und das BackgroundColorChanged-Ereignis ausgelöst.

' Create an instance of the 'BackgroundColorChanged' EventHandler.
Private Sub CallBackgroundColorChanged()
   AddHandler myDataGrid.BackgroundColorChanged, AddressOf Grid_ColChange
End Sub 'CallBackgroundColorChanged


' Set the 'BackgroundColor' property on click of button.
 Private Sub myButton_Click(ByVal sender As Object, ByVal e As EventArgs)
     If op_Equality(myDataGrid.BackgroundColor, Color.Yellow) Then
         myDataGrid.BackgroundColor = Color.Red
     Else
         myDataGrid.BackgroundColor = Color.Yellow
     End If
 End Sub 'myButton_Click


' Raise the event when 'Background' color of DataGrid changes.
 Private Sub Grid_ColChange(ByVal sender As Object, ByVal e As EventArgs)
     ' String variable used to show message.
     Dim myString As String = "BackgroundColorChanged event raised, changed to "
     ' Get the background color of DataGrid.
     Dim myColor As Color = myDataGrid.BackgroundColor
     myString += myColor.ToString()
     ' Show information about background color setting.
     MessageBox.Show(myString, "Background color information")
 End Sub 'Grid_ColChange

// Create an instance of the 'BackgroundColorChanged' EventHandler.
private void CallBackgroundColorChanged()
{
   myDataGrid.BackgroundColorChanged += new EventHandler(Grid_ColChange);
}

// Set the 'BackgroundColor' property on click of button.
private void myButton_Click(object sender, EventArgs e)
{
   if (myDataGrid.BackgroundColor == Color.Yellow)
   {
      myDataGrid.BackgroundColor = Color.Red;
   }
   else
   {
      myDataGrid.BackgroundColor = Color.Yellow;
   }
}

// Raise the event when 'Background' color of DataGrid changes.
private void Grid_ColChange(object sender, EventArgs e)
{
   // String variable used to show message.
   string myString = "BackgroundColorChanged event raised, changed to ";
   // Get the background color of DataGrid.
   Color myColor = myDataGrid.BackgroundColor;
   myString += myColor.ToString();
   // Show information about background color setting.
   MessageBox.Show(myString, "Background color information");
}

   // Create an instance of the 'BackgroundColorChanged' EventHandler.
private:
   void CallBackgroundColorChanged()
   {
      myDataGrid->BackgroundColorChanged += gcnew EventHandler( this, &MyDataGrid::Grid_ColChange );
   }

   // Set the 'BackgroundColor' property on click of button.
   void myButton_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      if ( myDataGrid->BackgroundColor == Color::Yellow )
      {
         myDataGrid->BackgroundColor = Color::Red;
      }
      else
      {
         myDataGrid->BackgroundColor = Color::Yellow;
      }
   }

   // Raise the event when 'Background' color of DataGrid changes.
   void Grid_ColChange( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      // String variable used to show message.
      String^ myString = "BackgroundColorChanged event raised, changed to ";

      // Get the background color of DataGrid.
      Color myColor = myDataGrid->BackgroundColor;
      myString = String::Concat( myString, myColor );

      // Show information about background color setting.
      MessageBox::Show( myString, "Background color information" );
   }

// Create an instance of the 'BackgroundColorChanged' EventHandler.
private void CallBackgroundColorChanged()
{
    myDataGrid.add_BackgroundColorChanged(new EventHandler(GridColChange));
} //CallBackgroundColorChanged

// Set the 'BackgroundColor' property on click of button.
protected void myButton_Click(Object sender, EventArgs e)
{
    if (myDataGrid.get_BackgroundColor().Equals(Color.get_Yellow())) {
        myDataGrid.set_BackgroundColor(Color.get_Red());
    }
    else {
        myDataGrid.set_BackgroundColor(Color.get_Yellow());
    }
} //myButton_Click

// Raise the event when 'Background' color of DataGrid changes.
protected void GridColChange(Object sender, EventArgs e)
{
    // String variable used to show message.
    String myString = "BackgroundColorChanged event raised, changed to ";

    // Get the background color of DataGrid.
    Color myColor = myDataGrid.get_BackgroundColor();

    myString += myColor.ToString();

    // Show information about background color setting.
    MessageBox.Show(myString, "Background color information");
} //GridColChange

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

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