private void OnColumnsCollectionChanged(object sender, CollectionChangeEventArgs args)
{
SWF.DataGridColumnStyle column = (SWF.DataGridColumnStyle)args.Element;
if (args.Action == CollectionChangeAction.Remove)
{
DataGridDataItemEditProvider edit = columns [column];
edit.Terminate();
RemoveChildProvider(edit);
columns.Remove(column);
}
else if (args.Action == CollectionChangeAction.Add)
{
DataGridDataItemEditProvider edit
= new DataGridDataItemEditProvider(this, column);
edit.Initialize();
AddChildProvider(edit);
columns [column] = edit;
}
else if (args.Action == CollectionChangeAction.Refresh)
{
foreach (DataGridDataItemEditProvider edit in columns.Values)
{
edit.Terminate();
}
OnNavigationChildrenCleared();
}
}
