layer.SendToBack and GroupElements

AndrewAlexander1 — Mon, 27 Feb 2023 20:44:18 GMT

Hello,

We just converted over the code we were working on from 2.x to 3.x. Everything, that we know of, is updated and seems to be working fine, except:

A description of the thing that is not working. This worked fine in 2.x.

//Created a polygon with text, added it to a layer
var elemTxtBox = symLayer.AddElement(polyTxtGra);

//need to get this new element behind some others
symLayer.SendToBack(elemTxtBox);

//added the element to an Element list so we can group them
glyphElems.Add(elemTxtBox);

//this will err, but only when doing the "symLayer.SendToBack(elemTxtBox)" above
symLayer.GroupElements(glyphElems);

If the SendToBack command is not called, nothing errs. But then the elemTxtBox is on top of the other elements, which is not what we want.

I get a null reference when trying the Group Elements, however everything involved is there, there is nothing that is null.

Thanks
Andy

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