javascript code to hide

Question

I'm trying to write javascript code where there is an object called "costCenter" which the visibility should be false. but when i click on the "computer" item on my dropdownlist it will set the "costcenter" visibility to true.

so far this is what i have. is this the proper use of syntax for javascript?

function hideMe()
{
var g = document.getElementById('costcenterid');
var e = document.getElementById('dg_form_ctl02_DropDownList1');
if(e == 'computer')
{
g.style.display = 'block';
else
g.style.display = 'none';
}
}

C# code behind

ClientScript.RegisterStartupScript(GetType(),"hwa","hideMe();",true);

i found this code from somewhere, but i'm not sure what goes in the "hwa"

assuming SetVisible is valid, this looks like it should work — Phillip Schmidt
– Phillip Schmidt, Commented Aug 14, 2012 at 22:51
What do you mean by an object 'costCenter'? Is that an HTML element or something? — Hazem Salama
– Hazem Salama, Commented Aug 14, 2012 at 22:52
Okay, if i wanted to call this method with c# code how would it look like? — user1596075
– user1596075, Commented Aug 14, 2012 at 22:52
@hsalama the object 'costCenter' i think would be an html element. its part of a gridview row and the datasource is connected to sqlserver — user1596075
– user1596075, Commented Aug 14, 2012 at 22:54

Miguel Borges · Accepted Answer · 2012-08-14 22:50:40Z

1

document.getElementById("id").style.display="none|block"

answered Aug 14, 2012 at 22:50

Miguel Borges

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1 Comment

user1596075 Over a year ago

is there anything i need to put inside the "none|block"?

Phillip Schmidt · Accepted Answer · 2012-08-14 22:54:57Z

0

rather than .value, try this:

var selectedVar = document.getElementById("dg_form_ctl02_DropDownList1").options[e.selectedIndex].text;

As far as calling it from c# code, that depends on what kind of project this is. If it's winforms, do it from the codebehind. If it's mvc, I'd generally suggest not doing it at all.

answered Aug 14, 2012 at 22:54

Phillip Schmidt

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1 Comment

user1596075 Over a year ago

hmm it is a website kind of project, but i had to use some code behind, okay. thanks.

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