Hiding all controls contained within a placeholder

[John]

Hi all,

How do I iterate through a specific placeholder and remove or hide all
controls contained within that placeholder?

Regards
John.

[John]

Thanks Karl,

I'll give the loop through a try. The reason I don't want to set the
visibility to false is because I could have one of quite a few user controls
loaded into the placeholder and if I have say, 5 user controls loaded, the
load event will fire in each user control contained within the placeholder
which is unnecessary.

Incidentally, how does a user control differentiate between the first time
it has been loaded into a page and subsequent times?

Regards
John.
"Karl Seguin" <kseguin##crea.ca> wrote in message
news:OQ**************@TK2MSFTNGP10.phx.gbl...

Why don't you just set the visibility of the placeholder to false?

YourPlaceHolder.Visible = false

If you need to loop through this child controls, try this:

Public Sub HideControls(ByVal ParentCntrl As System.Web.UI.Control)
Dim ChildCntrl As System.Web.UI.Control
For each ChildCntrl in ParentCntr.Controls
ChildCntrl.visible = false
If ChildCntrl.HasControls = True Then
HideControls(ChildCntrl)
End If
Next
End Sub

if you actually want to loop through the controls,
"John" <[e-mail]> wrote in message
news:Ob**************@TK2MSFTNGP11.phx.gbl...

Hi all,

How do I iterate through a specific placeholder and remove or hide all
controls contained within that placeholder?

Regards
John.

[William F. Robertson, Jr.]

Set a viewstate for the control that tells whether is has been posted back
on.

in your user control:

void Page_Load(...)
{
if ( ViewState["IsUCPostback"] == null )
{
ViewState["IsUCPostback"] = true;
//data binding code
}
}

HTH,

bill
"John" <[e-mail]> wrote in message
news:uT**************@TK2MSFTNGP11.phx.gbl...

Thanks Karl,

I'll give the loop through a try. The reason I don't want to set the
visibility to false is because I could have one of quite a few user controls loaded into the placeholder and if I have say, 5 user controls loaded, the
load event will fire in each user control contained within the placeholder
which is unnecessary.

Incidentally, how does a user control differentiate between the first time
it has been loaded into a page and subsequent times?

Regards
John.
"Karl Seguin" <kseguin##crea.ca> wrote in message
news:OQ**************@TK2MSFTNGP10.phx.gbl...

Why don't you just set the visibility of the placeholder to false?

YourPlaceHolder.Visible = false

If you need to loop through this child controls, try this:

Public Sub HideControls(ByVal ParentCntrl As System.Web.UI.Control)
Dim ChildCntrl As System.Web.UI.Control
For each ChildCntrl in ParentCntr.Controls
ChildCntrl.visible = false
If ChildCntrl.HasControls = True Then
HideControls(ChildCntrl)
End If
Next
End Sub

if you actually want to loop through the controls,
"John" <[e-mail]> wrote in message
news:Ob**************@TK2MSFTNGP11.phx.gbl...

Hi all,

How do I iterate through a specific placeholder and remove or hide all
controls contained within that placeholder?

Regards
John.