Add text to datagrid column when another column changes

[cmn2]

Hello,
While in edit mode,I want to add some text to a textbox column in a datagrid when the selected text of a dropdownlist column changes. Thank you in advance to anyone who can help.

Here is the sub that is called from the dropdownlist...

Sub ProductIDChanged(sender As Object, e As EventArgs)
...when this sub fires, I would like to add Test123 to
the ProductDescription column while staying in edit mode.
end sub


Here are my datagrid columns.

<asp:EditCommandColumn EditText="Edit" CancelText="Cancel" UpdateText="Update" />

<asp:Buttoncolumn Text="Delete" CommandName="Delete"/>

<asp:BoundColumn HeaderText="id" SortExpression="id" ReadOnly="True" DataField="id" ItemStyle-Wrap="false"/>


<asp:TemplateColumn HeaderText="ProductDescription" SortExpression="ProductDescription">
<ItemTemplate>
<asp:Label runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "ProductDescription") %>'/>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox runat="server" id="edit_ProductDescription" Text='<%# DataBinder.Eval(Container.DataItem, "ProductDescription") %>'/>
</EditItemTemplate>
</asp:TemplateColumn>

<asp:TemplateColumn HeaderText="ProductID" SortExpression="ProductID">
<ItemTemplate>
<asp:Label runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "ProductID") %>'/>
</ItemTemplate>
<EditItemTemplate>
<aspropDownList runat="server" id="edit_ProductID" onSelectedIndexChanged="ProductIDChanged" AutoPostBack="true" Datasource="<%# arylstProductIDs %>"/>
</EditItemTemplate>
</asp:TemplateColumn>

 

[tperri]

What exactly isn't working?