public static void InsertItemInItemsControl(ItemsControl itemsControl,
object itemToInsert,
int insertionIndex)
{
if (itemToInsert == null)
{
return;
}
var itemsSource = itemsControl.ItemsSource;
if (itemsSource != null && itemToInsert is DynamicFormEditor)
{
var propertyName = ((itemToInsert as DynamicFormEditor).DataContext
as DynamicFormListBoxContent).BindingPath;
var collectionView = itemsControl.ItemsSource as CollectionView;
if (collectionView != null)
{
foreach (PropertyInformation item in collectionView)
{
if (item.Name == propertyName)
{
item.HasBeenUsed = true;
break;
}
collectionView.Refresh();
}
}
}
else if (itemsSource == null && itemToInsert is PropertyInformation)
{
// this occurs when dragging from the left side field list
// to the form fields listings
itemsControl.Items.Insert(insertionIndex,
UIHelpers.DynamicFormEditorFactory(itemToInsert as
PropertyInformation));
}
else if (itemsSource == null && itemToInsert is DynamicFormEditor)
{
itemsControl.Items.Insert(insertionIndex,
itemToInsert);
}
}