private void FillStylesCollection()
{
if (!_isViewLoaded)
{
return;
}
var tree = View.DataControl as CustomTreeListControl;
if (tree == null)
{
return;
}
var stylesCollection = StylesCollection.Where(p => p.IsReadOnly).ToArray();
StylesCollection.Clear();
foreach (var p in stylesCollection)
{
StylesCollection.Add(p);
}
foreach (var o in tree.ExpressionStyleOptions.Options)
{
StylesCollection.Add(new StyleOption(o));
}
}
protected override void OnDetaching()
{
base.OnDetaching();
ExprButton.ItemClick -= BarButtonItem_ItemClick;
View.Loaded -= View_Loaded;
StylesCollection.CollectionChanged -= StylesCollection_CollectionChanged;
StylesCollection.Clear();
View.DataControl.ItemsSourceChanged -= OnItemsSourceChanged;
var cgc = View.DataControl as CustomTreeListControl;
if (cgc != null)
{
cgc.ExpressionStyleOptionsChanged -= ExpressionStyleOptionsChanged;
}
}
protected override void OnDetaching()
{
base.OnDetaching();
View.Loaded -= OnViewLoaded;
ExprButton.ItemClick -= OnExprButtonClick;
ExprButton = null;
if (StylesCollection != null)
{
StylesCollection.Clear();
StylesCollection = null;
}
View.Grid.ItemsSourceChanged -= OnGridItemsSourceChanged;
var cgc = View.Grid as CustomGridControl;
if (cgc != null)
{
cgc.ExpressionStyleOptionsChanged -= ExpressionStyleOptionsChanged;
}
}