This may have been somewhat addressed by a previous post but I wasnt clear on the answer.
I have a tree with a fairly large number of nodes in total (~22,000) and we are using the load on demand feature by setting the node source and loading the nodes that way.
This solution works quite well and the data itself returns very quickly, however when you expand a node with many child nodes, the data loads and shows quickly but the +- images take a long while to load.
To see an example of what I am talking about go to your demo site and use the default style and navigate to the Program Files directory and you will see that it returns the list of data pretty quickly but it takes quite a while to load these images.
On the lower left corner of the browser you can see that the browser is reloading these images for every node every single time. I would think that once the images are loaded then they would not need to be reloaded for every single node.
First Why does this happen?
second what is the solution to make this not happen? (i.e. is it a browser setting, or a IIS setting that will eliminate this behavior?)
I assume since the problem exists on your demo site as well that it is not an IIS issue since I would assume you would have made any IIS caching enabled to eliminate this if it were possible.
We have implemented our production system using your control and this is really causing a problem for our users. We did not see it during development or testing because the images load across our internal network very quickly, however across the internet they are not very quick to load.
Please advise.
Thanks,
Mike M