postback question, is the order in which objects are rendered and returned controllable?

I'm not really sure how to eloquently ask this, so I'll just demonstrate it.
Let's say I've got an aspx page, very pseudo for the sake of argument:

<%@ Page Codebehind="ind ex.aspx.vb" [etc...] %>
<html>
<body>
<form>
<include:MyUser Control />
HTML, text, etc...
<asp:Label1 />
<asp:Label2 />
<asp:Textbox />
<asp:SubmitButt on />
<asp:SpecialLab el />
</form>
</body>
</html>

On postback, some server-side stuff is going to happen that can generate a
LOT of HTML data - lots of rendered table web controls. This HTML data is
put into SpecialLabel.Te xt, and it can take a while to physically come
across the wire on dial-up (or even a lower-end DSL, if it's big enough).
That's ok, data is good; but unfortuantely the user is stuck with a blank IE
6 white-screen while the data comes across, and that's not too
professional-looking. I don't need anything too fancy, I just want to
somehow control postback in this order...

<html>
<body>
<form>
<MyRenderedUser Control>
<img>, text, blah blah, <img>, etc
<RenderedLabel1 >
<RenderedLabel2 >
<RenderedTextBo x>
<RenderedButton >

....response.fl ush?

....so that it's visible on the client and then this section...

<RenderedSpecia lLabel>
</form>
</body>
</html>

....response.fl ush?

So that my "page" is at least somewhat visible (and I could maybe display an
animated 'please wait' whirlygig) as all that table data is coming across.
The point is I don't want the user to just stare at a white screen the whole
time SpecialLabel is being sent to them, I'd rather they stare at the
originating page with a please wait message. Is that possible?

Nov 18 '05 #1

Subscribe Reply

1056

This seems to be giving me what I was looking for, in case anyone dreams up
doing something similar and finds this post:

<html>
<body>
<% Response.Buffer = True %>
<form>
<include:MyUser Control />
HTML, text, etc...
<asp:Label1 />
<asp:Label2 />
<asp:Textbox />
<asp:SubmitButt on />
</form>
<% Response.Flush %>
<asp:SpecialLab el />
</body>
</html>
"e" <e@e.com> wrote in message news:k6******** ************@sp eakeasy.net...

I'm not really sure how to eloquently ask this, so I'll just demonstrate it. Let's say I've got an aspx page, very pseudo for the sake of argument:

<%@ Page Codebehind="ind ex.aspx.vb" [etc...] %>
<html>
<body>
<form>
<include:MyUser Control />
HTML, text, etc...
<asp:Label1 />
<asp:Label2 />
<asp:Textbox />
<asp:SubmitButt on />
<asp:SpecialLab el />
</form>
</body>
</html>

On postback, some server-side stuff is going to happen that can generate a
LOT of HTML data - lots of rendered table web controls. This HTML data is
put into SpecialLabel.Te xt, and it can take a while to physically come
across the wire on dial-up (or even a lower-end DSL, if it's big enough).
That's ok, data is good; but unfortuantely the user is stuck with a blank IE 6 white-screen while the data comes across, and that's not too
professional-looking. I don't need anything too fancy, I just want to
somehow control postback in this order...

<html>
<body>
<form>
<MyRenderedUser Control>
<img>, text, blah blah, <img>, etc
<RenderedLabel1 >
<RenderedLabel2 >
<RenderedTextBo x>
<RenderedButton >

...response.flu sh?

...so that it's visible on the client and then this section...

<RenderedSpecia lLabel>
</form>
</body>
</html>

...response.flu sh?

So that my "page" is at least somewhat visible (and I could maybe display an animated 'please wait' whirlygig) as all that table data is coming across.
The point is I don't want the user to just stare at a white screen the whole time SpecialLabel is being sent to them, I'd rather they stare at the
originating page with a please wait message. Is that possible?

Nov 18 '05 #2

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