show hide div portion.

hi, all
i have an asp.net web application.
there is a master page and content pages.
my startup page is default.aspx, which is a content page. i have a div portion in my default.aspx page.

Now i want to hide this div Portion when the Page_Load().

i have written a javascript, & call it in the

<Body onload="javascript:setVisibility('id','none') ">

, it works but, some time, it shows the div for 2-3 seconds & then hide it.

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 //javascript is:---------->
 
function setVisibility(id,visibility)

    {

     document.getElementById(id).style.display = visibility;

    }

//------------------------------>

what is the problem.

please help me.

thanx ,
neel

Dec 10 '08 #1

Subscribe Post Reply

18170

nukefusion

221

Expert 100+

I must admit that I'm not massively knowledgeable on ASP.NET, so I could be wrong, but it makes sense in my own mind that if you register a Javascript function to run on the client on page load, that there might be a small delay between your page showing and the script executing - causing this flicker effect.

Could you not just set the visibility of the DIV in the code behind so that the processing takes place on the server before the page is renderered on the client?

Dec 10 '08 #2

baburmm

you can also hide the div tag inside the c# Code

just change your div tag like

<div id="div1" runat="server">
//something
</div>

in C# code set

div1.visible=false

may be it will helps you

Regards,
Babu.K

Dec 10 '08 #3

Frinavale

9,735

Expert Mod 8TB

Initially set the CSS for the to have a style="visiblity:hidden" and use the function to set the CSS to have a style="visibility:visible" once the page has loaded.

This will always hide the div when the page is first rendered and then show it only after the page has loaded.

You don't need to set the <Div> to run at server. Just simply put:

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<div style="visibility:hidden;"></div>

If you do the above (make the <div> run at server and then use div.visible=false) the Div will not be rendered in the browser and your JavaScript will crash. There is a huge difference between setting the visibility using server side code and setting it using CSS.

In this case you want to use CSS.

Dec 10 '08 #4

sweetneel

Hi, Frinavale

Thanx, by changing the css of div , the problem looks to be solved.

thank u all, again.

neel

Dec 11 '08 #5

balabaster

797

Expert 512MB

@Frinavale
It might also be useful to note that the asp:panel can be used in place of div as it renders a div on the client side anyway. That way you've got access to all the control properties that the panel control implements. On the client side it's no different than if you had registered a div. That way you can do the same thing as you did with the div, but in a more declarative manner:

<asp:panel id="MyDiv" runat="server" visible="false"></asp:panel>

Dec 12 '08 #6

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