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

In case you still have this problem this is how i resolved it:

listOrgs.SelectedIndex = -1;    // Clears the SelectedIndex to avoid the exception
listOrgs.DataSource = new Organization().DTListAll(SiteID);
listOrgs.DataTextField = "OrganizationName"; 
listOrgs.DataValueField = "OrganizationID"; 
listOrgs.DataBind();            //Unless you have "listOrgs.AppendDataBoundItems = true" you don't need to clear the list