public Context() {
removeCommand = new RelayCommand(o => {
if (SelectedItem != null) {
findItemAndRemoveRecursively(Items, SelectedItem);
}
}, o => {
return SelectedItem != null;
});
expandCollapseCommand = new RelayCommand(o => {
if (SelectedItem != null) {
SelectedItem.Expanded = !SelectedItem.Expanded;
}
}, o => SelectedItem != null);
changeTitleCommand = new RelayCommand( o => {
if ( SelectedItem != null ) {
SelectedItem.Title = "Changed title";
}
}, o => SelectedItem != null );
}
public DataContext( )
{
command = new RelayCommand(
parameter => MessageBox.Show( "Information", "Command executed !", result => { } ),
parameter => true );
}