Refresh issues

Have been having refresh issues. When I make nodes appear when
another is clicked or when I drag around existing nodes, the screen does not refresh properly.

Most of the function is not modified (i.e. override). The only major
override is the CalculateStroke() function for the links. Here is a screen shot of the result after I drag the node around a bit.

Thanks in advance…


O, I got it, I turned on SuspendUpdate.