private void dragDropManager_OnDragOver(object sender, TreeListDragOverEventArgs e)
{
if (e.HitInfo.InRow)
{
var view = (TreeListView) e.Manager.View;
TreeListNode targetNode = view.GetNodeByRowHandle(e.HitInfo.RowHandle);
var dropTargetType = e.Manager.ViewInfo.DropTargetType;
var target = (MaterialDto)targetNode.Content;
if (dropTargetType == DropTargetType.InsertRowsIntoNode && (!target.IsFolder))
{
e.AllowDrop = false;
e.Handled = true;
}
}
}
TreeListDragOverEventArgs RaiseDragOverEvent(TreeListViewHitInfo hitInfo, DragDropManagerBase sourceManager) {
TreeListDragOverEventArgs e = new TreeListDragOverEventArgs(hitInfo, sourceManager.DraggingRows) {
Handled = false,
Manager = this,
SourceManager = sourceManager,
};
if(DragOverEventHandler != null)
DragOverEventHandler(this, e);
return e;
}