Datagrid command buttons

planoie · July 26th, 2004, 10:23 AM

Mehdi-
My previous statement wasn't entirely correct. Literal text on the page can, as you have found, be accessed thru the controls collection. However, a specific tag is not accessible as a useful instance of an object on the server side. Sure, you can access the literal HTML. But then you'll need to handle all the parsing of a particular tag yourself. It's much easier to let .NET handle those details if you just want to modify some tag's attributes.

If you iterate thru all the controls in the Page.Controls collection, I think you'll find that you will get 3 controls:
1) A LiteralControl (or ResourceBasedLiteralControl) which is everything from "<html>" up to but not including "<form..."
2) A HtmlForm control (which is the form from "<form..." to "</form>")
3) A LiteralControl which is everything from but not including "</form>" to the end of the aspx (usually "</html>").

If you try to access these controls, you will get a cast error when you hit the HtmlForm control. I'm not sure how your test can be reporting that they are all literals.

mehdi62b · July 26th, 2004, 05:10 PM

I changed my code
----------------------
foreach (object obj in Page.Controls)
{
if(obj.GetType()==new HtmlForm().GetType())
{
     foreach (object objfrm in ((HtmlForm )obj).Controls)
     {
     if(objfrm.GetType()==new Button().GetType())
        {
         ((Button)objfrm).Text="I've become so Numb.....LinkinPark";
         //change ......
        }
     }
}
}
---------------------
any attempt for accessing HtmlForm control(It's InnerHtml property) results in a runtime error:
"Cannot get inner content of Form1 because the contents are not literal."
I don't know the cause of it exactly.
With lots of thanks to Peter.

--------------------------------------------
Mehdi
I'm waiting for your better idea.

badgolfer · July 27th, 2004, 02:42 AM

Peter,

  sorry that was a typing error on my part. I had included the
  final %> part of the string but it still didn't like it.

  The full syntax I used was

onclick="sString='<%# DataBinder.Eval(Container.DataItem,"field1")%>';"

It still gives the same error as above.