public MyBehavior(CheckBox source)
{
this.checkBox = source;
this.checkBox.Unloaded += checkBox_Unloaded;
checkBox.Dispatcher.BeginInvoke(new Action
(() =>
{
grid = checkBox.ParentOfType<RadGridView>();
groupRow = checkBox.ParentOfType<GridViewGroupRow>();
if (grid != null && groupRow != null)
{
groupRow.Unloaded += groupRow_Unloaded;
this.UpdateIsChecked(groupRow.Group);
}
if (grid != null)
{
grid.SelectionMode = System.Windows.Controls.SelectionMode.Extended;
grid.SelectionUnit = GridViewSelectionUnit.FullRow;
checkBox.Click += clickHandler = (s, e) =>
{
grid.SelectionChanged -= grid_SelectionChanged;
if (checkBox.IsChecked == true)
{
grid.Select(this.GetSubGroupItems(((GroupViewModel)checkBox.DataContext).Group));
}
else
{
grid.Unselect(this.GetSubGroupItems(((GroupViewModel)checkBox.DataContext).Group));
}
grid.SelectionChanged += grid_SelectionChanged;
};
groupRow.DataContextChanged += dataContextChangedHandler = (s, e) =>
{
this.UpdateIsChecked(e.NewValue as IGroup);
};
}
}
));
}
