DefaultButton What's wrong with this code?

[mablejune]

HtmlForm frm = (HtmlForm)Master.FindControl("formMain");
frm.DefaultButton = "btnSubmit";
txtCall.Focus();

Running this code produces the following error message:

The DefaultButton of 'formMain' must be the ID of a control of type
IButtonControl.

btnSubmit is a System.Web.UI.WebControls.Button which implements
IButtonControl.

Is this a bug?

 

[Steve C. Orr [MVP, MCSD]]

You could use this free control to solve the problem.
http://www.metabuilders.com/tools/DefaultButtons.aspx

And here are a couple good articles on the subject:
http://www.allasp.net/enterkey.aspx
http://www.aspnetpro.com/features/2004/06/asp200406so_f/asp200406so_f.asp

 

[mablejune]

On Tue, 13 Dec 2005 21:00:49 -0800, "Steve C. Orr [MVP, MCSD]"

Thank you Steve, but neither of the links you sent answers my question
about why the code doesn't work. The code is from ASP.NET 2.0 and the
Default button property is a new property of the form object. My
question is why does this not work as it should.

 

[Joshua Flanagan]

Try assigning DefaultButton to the ClientID of the button.

Something like this:
HtmlForm frm = (HtmlForm)Master.FindControl("formMain");
IButtonControlbtn = (IButtonControl)Master.FindControl("btnSubmit");
frm.DefaultButton = btn.ClientID;
txtCall.Focus();

Joshua Flanagan
http://flimflan.com/blog

 

[mablejune]

On Wed, 14 Dec 2005 18:04:53 -0600, Joshua Flanagan <[email protected]>
wrote:

Thank you Joshua. I'll do that.

 

[mablejune]

On Wed, 14 Dec 2005 18:04:53 -0600, Joshua Flanagan <[email protected]>
wrote:

Joshua,

Doesn't work. I think it's a bug. I'll report it...

 

[mablejune]

On Wed, 14 Dec 2005 18:04:53 -0600, Joshua Flanagan <[email protected]>
wrote:

It's a bug. Here's the workaround...

HtmlForm frm = (HtmlForm)Master.FindControl("formMain");
Button btn = (Button)this.btnSubmit;
frm.DefaultButton = btn.UniqueID;

 

[Joshua Flanagan]

Sorry, UniqueID is what I meant (didn't have the docs in front of me).
That is the correct behavior - it is not a bug.

 

[mablejune]

Sorry, UniqueID is what I meant (didn't have the docs in front of me).
That is the correct behavior - it is not a bug.

 

[mablejune]

On Thu, 15 Dec 2005 11:19:30 -0600, Joshua Flanagan <[email protected]>
wrote:

When it was reported a year ago it was a bug. They simply rewrote the
help files to cover it. Check the bug history on it.

 

[TonyDong]

use server control instead of html control

After I change the html button control to server control.

All default button works.

:razz: