javascript error in asp.net

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JavaScript

var hidval = document.getElementById("<%=hdhidden.ClientID %>");
               alert(hidval.value);

but hidval is always getting null i tried using sigle quote but it does not help i dont know why i am getting null please help me..

and my aspx page is

ASP.NET

<asp:HiddenField ID="hdhidden"  runat="server" Value="mahesh" />

Posted 10-Apr-14 21:22pm

Member 10057465

Updated 10-Apr-14 21:44pm

Nelek

v3

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Jignesh Khant 11-Apr-14 3:46am

var hidval = document.getElementById("<%=hdhidden.ClientID %>").value;

This should work.

Member 10057465 11-Apr-14 3:50am

no hidval is returning null .value saying object required

Jignesh Khant 11-Apr-14 4:13am

document.getElementById('<%= hdhidden.ClientID%>')

Dont use value, replace double quotes with single.

Member 10057465 11-Apr-14 5:28am

yes i have used document.getElementById('<%= hdhidden.ClientID%>') this and also i have tried
at runtime id of that control like

document.getElementById('contentplaceholder_hdhidden') but still i cannot get the control in javascript

2 solutions

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Kan07 · Answer 1 · 2014-04-10T22:18:00

Solution 1

document.getElementById('<%= hdhidden.ClientID%>').value;
try this.

Posted 10-Apr-14 22:18pm

Kan07

Comments

Member 10057465 11-Apr-14 5:28am

yes i have used single quote but still its throwing object required..

[no name] 11-Apr-14 7:23am

hdhidden.ClientID give direct clietID here ,Inspect ELEMENT > find out the client ID

Kabi Pr. Sahoo · Answer 2 · 2014-04-10T22:59:00

Solution 2

You can try this...
var hidval = document.getElementById("hdhidden");
alert(hidval.value);

If you are using in content page ...you should try the below code...

var hidval = document.getElementById('<%= hdhidden.ClientID%>').value;
alert(hidval.value);

Posted 10-Apr-14 22:59pm

Kabi Pr. Sahoo

Comments

Member 10057465 11-Apr-14 5:29am

yeah i am using content page and tried your code but its throwing object required please help me..