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Loading user controls...
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Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions.

Andy Green
-- Moved from [aspngwebcontrols] to [aspngreuse] by Swoop Doggy Dogg <Click here to reveal e-mail address> --

Hello all,

I am tasked with creating a Web application for a client using ASP.NET. One
of the required features is to facilitate a modular display. I was thinking
that I would use user controls to contain data that could then be pushed
into a .aspx template. I have a main index.aspx file that contains a series
of asp:panels. Inside each panel is a user control. The panel's visible
property is set to false or true depending on variables from the URL string.
So, only the modules inside the visible panels get displayed. However, my
question is, even though the other user control modules are hidden by the
panels that are set to visible=false, are they still getting loaded by the
client that's viewing them? Also, at what point during the loading process
do user controls get loaded?

Any help will be appreciated.

Thanks,
Andy Green
Reply to this message...
 
    
Brian Boyce
Andy,

Rather than hiding (setting visible to false) the controls, why don't you
only add controls to the aspx page that are required. As in the ibuyspy
portal. From the sounds of your description, a customized portal would serve
your needs very well.

Brian

-----Original Message-----
From: Andy Green [mailto:Click here to reveal e-mail address]
Sent: 06 August 2002 03:56
To: aspngreuse
Subject: [aspngreuse] Loading user controls...

-- Moved from [aspngwebcontrols] to [aspngreuse] by Swoop Doggy Dogg
<Click here to reveal e-mail address> --

Hello all,

I am tasked with creating a Web application for a client using ASP.NET. One
of the required features is to facilitate a modular display. I was thinking
that I would use user controls to contain data that could then be pushed
into a .aspx template. I have a main index.aspx file that contains a series
of asp:panels. Inside each panel is a user control. The panel's visible
property is set to false or true depending on variables from the URL string.
So, only the modules inside the visible panels get displayed. However, my
question is, even though the other user control modules are hidden by the
panels that are set to visible=false, are they still getting loaded by the
client that's viewing them? Also, at what point during the loading process
do user controls get loaded?

Any help will be appreciated.

Thanks,
Andy Green

| [aspngreuse] member Click here to reveal e-mail address = YOUR ID
| http://www.aspfriends.com/aspfriends/aspngreuse.asp = JOIN/QUIT
Reply to this message...
 
    
Andy Green
Well I appreciate the suggestion, but that doesn't answer my question.
Anyone else have any suggestions.

Thanks,
Andy

-----Original Message-----
From: Brian Boyce [mailto:Click here to reveal e-mail address]
Sent: Tuesday, August 06, 2002 7:34 AM
To: aspngreuse
Subject: [aspngreuse] RE: Loading user controls...

Andy,

Rather than hiding (setting visible to false) the controls, why don't you
only add controls to the aspx page that are required. As in the ibuyspy
portal. From the sounds of your description, a customized portal would serve
your needs very well.

Brian

-----Original Message-----
From: Andy Green [mailto:Click here to reveal e-mail address]
Sent: 06 August 2002 03:56
To: aspngreuse
Subject: [aspngreuse] Loading user controls...

-- Moved from [aspngwebcontrols] to [aspngreuse] by Swoop Doggy Dogg
<Click here to reveal e-mail address> --

Hello all,

I am tasked with creating a Web application for a client using ASP.NET. One
of the required features is to facilitate a modular display. I was thinking
that I would use user controls to contain data that could then be pushed
into a .aspx template. I have a main index.aspx file that contains a series
of asp:panels. Inside each panel is a user control. The panel's visible
property is set to false or true depending on variables from the URL string.
So, only the modules inside the visible panels get displayed. However, my
question is, even though the other user control modules are hidden by the
panels that are set to visible=false, are they still getting loaded by the
client that's viewing them? Also, at what point during the loading process
do user controls get loaded?

Any help will be appreciated.

Thanks,
Andy Green

| [aspngreuse] member Click here to reveal e-mail address = YOUR ID
| http://www.aspfriends.com/aspfriends/aspngreuse.asp = JOIN/QUIT

| [aspngreuse] member Click here to reveal e-mail address = YOUR ID
| http://www.aspfriends.com/aspfriends/aspngreuse.asp = JOIN/QUIT
Reply to this message...
 
    
Brian Bilbro (VIP)
[Original message clipped]

Yes they are still "loaded". However, no client-side code is sent to the
browser.

[Original message clipped]

When ASP.NET converts the .ASPX file to a .CS file you can see that is
creates the controls and adds them to the page's control collection on the
Pages Init event. You can see that by browsing the temporary files for
ASP.NET. This statement is only true for controls on the page itself.

Differences from the above statement:
1. Code-behinds are programmed by you
2. Controls within User Controls are created and added in that's
UserControl's Init (separate from the Pages' init)
3. Server Controls create and add controls during the CreateChildControl
methods (typically...you might find a rogue programmer or two who isn't
doing that :)

LoadingViewState and Load event occur for a control *after* it's been added
to it's parent control collection (off of the top of my head).

If you want to learn more about when events happen, I would recommend just
adding Trace.Write in all of your methods and see when they fire.

HTHs,
Brian

----- Original Message -----
From: "Andy Green" <Click here to reveal e-mail address>
To: "aspngreuse" <Click here to reveal e-mail address>
Sent: Tuesday, August 06, 2002 6:58 PM
Subject: [aspngreuse] RE: Loading user controls...

[Original message clipped]
Reply to this message...
 
 
System.Diagnostics.Trace
System.Web.UI.UserControl
System.Windows.Forms.UserControl




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