Sep 20, 2010 04:58 AM|Qin Dian Tang - MSFT|LINK
You need to create a property in email user control. This property is used to set and get the value from the TextBox which is needed to bind, not set the two-way binding in TextBox. So after created the property, the email user control to bind the value
<Prf:email ID="Email_E" runat="server" Email='<%# Bind("Email") %>' />
On aspx page DataBound control won't bind for the control in user control. It binds the user control directly.