I have run into an issue here, i have 2 RadListBoxes on a page using the Transfer functionality. The first RadListBox is bound on a SelectedIndexChanged event of a RadComboBox using an XML file. I can transfer items to them with no issues. The issue I am having is that when i hit a submit button on the page and the page posts back the transferred items are duplicating in the second RadListBox. Has anyone seen this and overcome the issue? I am also using the RadAjaxManager on the page and I think this is where the issue is coming from, when I remove the RadAjaxManager from the page it all seems to work. Any ideas?