We are about to buy the NetDiagram control, but there is just one issue that stop us from doing so. In IE when the canvas is big enough that it does not fit in the screen when the user clicks in a node the whole screen scrolls back to the top left corner without raising any event (and does not select the node either). In Firefox it is working properly without any issues. What am I missing?

We are running IE 8. I tried the PostBack sample and it is working fine. However, when we added the InteractivityExtender, it seems to overlay a layer on top of the diagram that causes the scrolling position to reset to the top left any time you click on it, and no events are triggered.

To reproduce this in the PostBack example, you can set the height of the DiagramView to 1200px, add the InteractivityExtender, and then scroll (the outer scroll bar) to the bottom of the page and try selecting a node.

By setting the DiagramView.Height to a value within the bounds of the screen, this issue is eliminated because the outer scrollbar is no longer displayed. This is a still a weird behaviour from the control but this is a workaround we are willing to use.

Thanks for your help.