Custom Document Library Edit Form will not save data.

I created a custom Document Library edit form with a pair of cascading drop down list connected to SQL Data Sources. The drop downs are pulling data from the database and cascading correctly. The data will not save to the fields in the document library. The fields are single line of text. Here is drop down tag: <asp:DropDownList runat="server" id="DropDownList1" AutoPostBack="True" DataValueField="areaname" DataTextField="areaname" DataSourceID="sqdNewArea" Width="402px" />

Do I need to add this to the drop down tag: __designer:bind="{ddwrt:DataBind('u',concat('ff5',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@ProductionArea2')