CheckableCommandParameter is used convey an IsChecked state from a
command to its attached control (e.g., ToggleButton, MenuItem). It is
passed as the CanExecuteRoutedEventArgs.Parameter property in the
CanExecute handler. Using CheckableCommandParameter requires two steps:
(1) Pass an instance of CheckableCommandParameter as the CommandParameter
of the control (e.g., ToggleButton) and bind the controls IsChecked
property to the CheckableCommandParameter.IsChecked property.
(2) Update the CheckableCommandParameter.IsChecked property in your
commands CanExecute handler.
private void MyCommand_CanExecute(object sender, System.Windows.Input.CanExecuteRoutedEventArgs e)
{
e.CanExecute = ...;
CheckableCommandParameter checkable = e.Parameter as CheckableCommandParameter;
if (checkable != null)
checkable.IsChecked = ...;
}
Syntax
| Visual Basic (Declaration) | |
|---|
Public Class CheckableCommandParameter |
| C# | |
|---|
public class CheckableCommandParameter |
Inheritance Hierarchy
System.Object
ESRI.ArcGIS.Mobile.Client.CheckableCommandParameter
Requirements
Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family
See Also
