I've been testing out xamTreemap with data binding and noticed that when I get past a certain number of nodes in the tree, performance comes to a crawl. I need to support 500-1000 elements per level, but every time I add an element, the treemap has to redraw and the application becomes unresponsive.
My question is: Is there a way to cache the redrawing so that I can turn off the redraw, add a bunch of data, then force a redraw afterward?
Currently this is not possible. We are working on improving the overall performance of the treemap. Preventing redraw and forcing it at a certain moment is a good idea and we may implement it too.
The way to prevent redrawing now is to manipulate the data when it is not bound to the treemap. A possible solution is to make a copy of the data, make the needed changes and then set the copy as the ItemsSource of the treemap.
I am sorry to inform you that the issues that you mentioned are not changed in 11.1 release. Are the suggestions above for improving the performance helpful to you?
Does this still apply for 2011 Volume 1 that was just released in June 2011? Just wondering if anything has been added to allow for control of when the redraw happens (redrawing after adding a bunch of items instead of redrawing after each item is added).