RadioButton list in GridView - 2 way databinding possible??

Question

If I have an ASP.Net RadioButtonList within a TemplateField in a GridView, which is tied to a Data Control, I can get databinding on page loading like so:

<asp:RadioButtonList SelectedValue='<%#Eval("RequirementOption")%>'>

So when the gridview renders, the user can select an option for each row in the grid.

What I'm wondering is, when the save button is pressed and a postback occurs, is there a way to automatically push these selected values back through to the datacontrol so they can be saved, or do I have to manually loop through all the grid rows and exract the chosen value, like so:

For iRow As Integer = 0 To Me.myGrid.Rows.Count - 1
  Dim selectedValue As String = CType(Me.myGrid.Rows(iRow).FindControl("RequirementOption"), RadioButtonList).SelectedValue
  '...Load up the appropriate class and save the selected value  
  Next

Can it be done automatically via databinding?

NOTE: I am talking about about updating all the rows and then accessing all of them opn postback, not one row at a time via inline editing.

Answer 1

Yes, the selectedValue will be available as long as you specify Bind instead of Eval.

(assuming you're updating a record in the usual way)