dhtmlxTreeGrid moveRowTo() Infinite loop

Suite and Optimus Suite 5
#1

Experiencing an infinite loop on moveRowTo() in version v2.1. I have a Treegrid where ‘A’ is the ultimate parent with a child of ‘B’. ‘B’ has a child of ‘C’.

A

-----B

   ----------C

I have a requirement where the user can click a button to make ‘C’ become the top of the tree. The result should look as:

C

-----A

   ----------B

I use moveRowTo() but the library goes into an infinite loop because I think it’s adding A to C before the delete happens. My code is as follows:

var selectedId = tree.getSelectedId();
tree.moveRowTo(tree.getRowId(0),selectedId,“move”,“child”,tree);

Is there a simple way to achieve a replacement of the top node in a treegrid without using a temporary treegrid?

Thank you.

#2

Try to use

var selectedId = tree.getSelectedId(); tree.moveRowTo(selectedId,tree.getRowId(0),"move","sibling",tree); tree.moveRowTo(tree.getRowId(0),selectedId,"move","child",tree);

In such case it will remove item in question from childs of top item, as first step, and as second step reorder items as it necessary in your case

#3

Thank you, works great although we have issues when there are a large number of nodes in the tree (i.e. greater than 700). Any suggestions for dealing with large structures when reorganizing in this way?

#4

In case of treegrid , moving of branch will cause full re-rendering of all involved rows, which can cause performance issues if you are moving a big branch.
Unfortunately it can’t be seriously improved.