data binding

Question

hai all,

        i have two comboboxes in one of my .aspx pages when i select a item in one combobox the other should display its concern data , but i am not able to bind the data to other one , iam getting an error called "DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'Location_Id' ". what do i do to get over this.


can anybody help me.

thanks