C # Drag a node using listview

/// <Summary> /// triggered when a certain item is dragged /// </Summary> /// <Param name = "sender"> </param> /// <Param name = "E"> </param> private void listview1_itemdrag (Object sender, itemdrageventargs e) {listview1.dodragdrop (E. item, dragdropeffects. move );} /// <summary> /// drag an item to the control area /// </Summary> /// <Param name = "sender"> </param> /// <Param name = "E"> </param> private void listviewincludragenter (Object sender, drageventargs E) {e. effect = dragdropeffects. move ;} /// <summary> /// when dragging an item to the top of a row, /// </Summary> /// <Param name = "sender"> </Param >/// <Param name = "E"> </param> private void listviewdomaindragover (Object sender, drageventargs e) {point ptscreen = new point (e. x, E. y); point Pt = listview1.pointtoclient (ptscreen); listviewitem item = listview1.getitemat (pt. x, PT. y); If (item! = NULL) item. selected = true ;} /// <summary> /// end dragging /// </Summary> /// <Param name = "sender"> </param> /// <Param name = "E"> </param> private void listviewincludragdrop (Object sender, drageventargs e) {listviewitem draggeditem = (listviewitem) E. data. getdata (typeof (listviewitem); // The old destination point ptscreen = new point (e. x, E. y); point Pt = listview1.pointtoclient (ptscreen); listviewitem targetitem = listview1.getitemat (pt. x, PT. y); // new target if (null = targetitem) {return;} If (messageboxex. show ("[" + draggeditem. text + "] Go to [" + targetitem. text + "]", "Ask", messageboxbuttons. okcancel, messageboxicon. question) = dialogresult. OK) {var item = draggeditem. tag as view_tablelistmodel; int tableid = item. ID;} // listview1.items. insert (targetitem. index, (listviewitem) draggeditem. clone (); // listview1.items. remove (draggeditem );}

 

C # Drag a node using listview