I have an application scenario where the user is allowed to pick more than one item from more than one category of items. I've solved this by creating a RadListView that will be bound to the categories and then using an ItemTemplate in the ListView to create a RadListBox for each category that will allow the user to select options in each category. Everything was working great until one of the categories ended up having over 10,000 possible options to choose from. I decided to try to solve this problem by setting EnableLoadOnDemand to true on the RadListBox in the ItemTemplate so it wouldn't try to render every item for every category to the page when it first loaded. However, this doesn't work at all. If I try to bind the ListView on Page Load, I get a weird error. If I bind the ListView later (on a button click) I get blank RadListBoxes. I've linked to a sample web project to show you what I'm trying to do. Is this even possible?
http://www.iconstudios.org/RadListBoxinTemplate.zip
If I can't use EnableLoadOnDemand to accomplish this, what other strategies do you recommend for selecting from a huge list?
Thanks,
Patrick
http://www.iconstudios.org/RadListBoxinTemplate.zip
If I can't use EnableLoadOnDemand to accomplish this, what other strategies do you recommend for selecting from a huge list?
Thanks,
Patrick