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problem in assigning a javascript variable to aspx variable RSS

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Last post Aug 03, 2012 03:20 PM by roopeshreddy

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direct_tarun

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problem in assigning a javascript variable to aspx variable

Aug 03, 2012 06:38 AM|LINK
hello every one i want to assign a javascript variable to aspx variable the code for my problem i am giving below....
```
<script type="text/javascript">
     var sPath = window.location.pathname;
     var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);
     alert(sPage);
    
</script>
<%
   var lastModDate = System.IO.File.GetLastWriteTime(sPage);
%>
```
i am not able to do the above task can any1 help me out....

Any help would be appreciated...:)

kedarrkulkar...

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Re: problem in assigning a javascript variable to aspx variable

Aug 03, 2012 06:42 AM|LINK

try this

<script type="text/javascript">
     var sPath = window.location.pathname;
     var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);
     alert(sPage);
     
 
   var lastModDate = <% System.IO.File.GetLastWriteTime(sPage) %>;
</script>

hope this helps...

Cheers!
KK

Please mark as Answer if post helps in resolving your issue
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Ajay2707

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Re: problem in assigning a javascript variable to aspx variable

Aug 03, 2012 08:06 AM|LINK

Hi Friend,

If you want to do this, So first javascript must fire on load, then variable will get value.

refer link.

http://forums.asp.net/t/1043216.aspx/1

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direct_tarun

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124 Posts

Re: problem in assigning a javascript variable to aspx variable

Aug 03, 2012 11:16 AM|LINK

Thanks for giving me your precious time. I need to print that variable how to do it can help a bit more.
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kedarrkulkar...

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Re: problem in assigning a javascript variable to aspx variable

Aug 03, 2012 11:32 AM|LINK

direct_tarun

Thanks for giving me your precious time. I need to print that variable how to do it can help a bit more.

what u mean by print the variable?

do u want to display value of the variable? u can use alert() for that... like this

var lastModDate = <% System.IO.File.GetLastWriteTime(sPage) %>;
alert(lastModDate);

hope this helps...

Cheers!
KK

Please mark as Answer if post helps in resolving your issue
My Site
- Marked as answer by Song-Tian - MSFT on Aug 09, 2012 06:15 AM
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Ruchira

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Re: problem in assigning a javascript variable to aspx variable

Aug 03, 2012 12:37 PM|LINK
Hello,

Use hidden field to pass the value to the code behind

In your aspx,
```
<asp:HiddenField ID="HiddenField1" runat="server" />
```
In your JavaScript
```
document.getElementById('<%=HiddenField1.ClientID %>').value = "Value in javascript";
```
In code behind
```
string valueInCodeBehind = HiddenField1.Value;
```
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- Marked as answer by Song-Tian - MSFT on Aug 09, 2012 06:15 AM
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A1ien51

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Re: problem in assigning a javascript variable to aspx variable

Aug 03, 2012 02:23 PM|LINK

JavaScript runs on the browser, Serverside code runs on the server. The JavaScript code can not give the server code information!

Eric

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roopeshreddy

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Re: problem in assigning a javascript variable to aspx variable

Aug 03, 2012 03:20 PM|LINK
Hi,

If you wanna print, then assign the content to any element and you can print!
```
<span id="fileTime"></span>

<script type="text/javascript">
document.getElementById("fileTime").innerHTML = lastModDate;
</script>
```
Hope it helps u...
Thanks & Regards
Roopesh Reddy C
Roopesh's Space