SelectedValue which is invalid because it does not exist in the list of items

Question

I encounter this problem repeatedly, and haven\'t a clue what is causing it. I get an exception in the DataBind: SelectedValue which is invalid because it does not exist i

Answer 1

I was getting the same error repeatedly and try ending up by not setting the default selected value to Index -1.

I commented my code ddlDRIBidAmt.SelectedValue = -1

This value was set at the time where my Page Controls were reset to default values.