can't seem to hide user control with code

[Guest]

Hi I am trying to conditionally hide a user control on a form in the code.
There is a visible element in the properties box of the user control but in
the .vb file (in the code) the object does not seem available. Using me. the
intellsince does not show the user control name, so can not seem to get to
its properties in code.
Thanks.
Paul G
Software engineer.

 

[Steve C. Orr [MVP, MCSD]]

So this is a user control you've created?
If so, you probably need to implement your own version of the visible
property and put code similar to this in it:

For each ctrl as Control in Me.Controls
ctrl.Visible=Value
Next

Here's more info:
http://SteveOrr.net/faq/ControlTreeRecursion.aspx

 

[Guest]

Hi thanks for the response. It is a control that I created.
I tried the following but get a runtime error (Object reference is not set
to an instance of an object) when using
Imports projectname.usercontrolname '
Me.usercontrolname.Visible = False ' runtime error occures here.
I also set up the code below like what you had suggested which seems to run
ok but not sure if it is itterating through all of the controls on the form.
For Each ctrl As Control In Me.Controls
ctrl.Visible = True
Next

 

[sam]

I think asp.net for efficiency reasons creates 5 child controls, some
of which are null. So you need to insert into the foreach loop:
if(ctrl != null) { ctrl.Visible = True }

or however you write that in VB.

 

[Guest]

ok thanks for the information, think it would be
if ctrl <> NULL then
ctrl.visible = True
end if

 

[Tarren]

just put an aspanel around the user control and hide that when needed.

 

[Guest]

Sounds like a good idea. Thanks.