Question

How do I pop up a delete confirm for a delete button in an asp:GridView?

Answer 1

If you have a delete button for each row in a GridView, here is what I think is the best (and definitely easiest) way to have it put up an alert asking for confirmation. Here is the full aspx code (there is no code-behind needed):

<asp:TemplateField ShowHeader="False">
  <ItemTemplate>
  <asp:LinkButton ID="DeleteButton" runat="server"
      CausesValidation="False"
      CommandName="Delete"
      OnClientClick='<%# Eval("Title", "return confirm(\"Delete the datasource {0}?\");") %>'
      Text="delete" />
  </ItemTemplate>
</asp:TemplateField>

A couple of notes:

1. The CommandName must be Delete – that is what maps this to the
   GridView delete functionality.
2. Title is the data column name of the
   title of that row. What you use here will depend on the
   column/property names of your data.
3. Same for the word datasource –
   that is what we have rows of. You need to replace with what your
   data is called.
4. I think <%$ resource_name %> should work for the
   text – but have not done that yet.