To improve performance and allow a more flexibility I have developed a simple user control to handle the editing of a rad grid row. On the usercontrol there are 2 RadComboBoxes (Job and Task) which both have the AutoPostBack property set to True. The idea is when you select a Job the Task combo box only populates Tasks relevant to that Job.
I have a major problem in that after selecting a Job from the dropdownlist (populated correctly via the ItemsRequested method) the Job_SelectedIndexChanged event isn't fired, however the Task_ItemsRequested is fired but I cannot populate this correctly because I cannot get access to the value of the selected item in the Job dropdownbox. In the debugger I've tried a number of ways to get the SelectedValue e.g. FindControl("Job").SelectedValue, Ctype(.. RadComboBox..) but I only get back a blank string.
When this functionality was part of the RadGrid it seemed to work fine, however now I've moved it into a UserControl it's seems to be faultering.