Disable all form controls

[Evan M.]

Hello

I'm trying to disable all the WebControls in my form under condition
(i.e. data is missing). So I'm trying the following lines:

foreach (System.Web.UI.WebControls.WebControl c in
EditingForm.Controls)
c.Enabled = false;

However, when I try and hit the page, I get this exception:
System.InvalidCastException: Specified cast is not valid.

So if this refuses to work, who can tell me how I can disable all the
web controls on my page without having to explicitly hit each one?

 

[Hibri]

Hi,
Check if the control is a webcontrol before you disable it
like;

foreach (System.Web.UI.Control c in
EditingForm.Controls){
if(c.getType()== typeof(System.Web.UI.WebControls.WebControl){
c.Enabled = false;
}
}

Not all controls in the control collection will be of the type WebControl.
HTH

 

[Evan M.]

Thanks. Discovered there were LiteralControls intermixed with the
WebControls for some reason

Works perfectly now.