suppressing Submit command with a Delete button

  • Thread starter Thread starter Elliot M. Rodriguez
  • Start date Start date
E

Elliot M. Rodriguez

I have a Delete button in my datagrid. I'm attempting to add some code
confirming whether the user wishes to really delete the item or not.

The confirm pops up, but I cannot suppress the submission when selecting
Cancel.

Heres what I have so far:

' adding the javascript call to the button:
Private Sub dgItem_ItemCreated(ByVal sender As Object, ByVal e As
System.Web.UI.WebControls.DataGridItemEventArgs) Handles dgItem.ItemCreated

If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType =
ListItemType.AlternatingItem Then

Dim objDeleteButton As Button = CType(e.Item.Cells(1).Controls(0), Button)

objDeleteButton.CssClass = "inputbutton"

objDeleteButton.Attributes.Add("onClick", "confirmDeleteItem();")

End If

End Sub



' client side code in javascript

function confirmDeleteItem()

{

if (confirm("Are you sure you wish to delete this item?"))

{

return true;

}

else

{

return false;

}

}

any help is appreciated. thank you.
 
Sounds like you have validation controls on there, which causes the runtime
to emit yet another onClick handler which submits the form. Try using an
<input type="button"> instead of an <asp:button> control, and if you need
validation just script in the validation call (and, as always, make sure you
explicitly validate on the server, as client side validation is easy to
foil).
 
Chris:

Thanks for the reply. I am struggling with this.

If I take your approach it seems I dont have the ability to wire it to the
DeleteCommand event. This means I have to access the DataKey for the row
through the client, which I dont want to do. I could be wrong on this
though.

All I really want to do is have a DeleteCommand button that performs a
delete with a confirmation prior to deletion. My code does not have any
other validators on the page. There is another button on the page, but
performs a completely unrelated task.
 
Chris:

I realized I forgot the lousy "return" keyword in Attributes.Add lol...
Thanks for the article and the help.
 
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