Solved

Fill an Hidden field Value with a QueryString value

Posted on 2011-03-04
5
1,001 Views
Last Modified: 2012-08-14
I'm trying to get the "ProductID" querystring value on my .NET page and insert it as the value for one of my hidden fields, but it's not filling in anything even though the ProductID is in the querystring with a value.   What am I doing wrong?

<asp:HiddenField ID="dccapv_productid" runat="server" Value="<%= Request.QueryString("ProductID") %>"/>
0
Comment
Question by:saturation
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 9

Expert Comment

by:rawinnlnx9
ID: 35040575
Request.QueryString["ProductID"].ToString()

I think you need brackets. Just taking a guess though. You could also do this from the codebehind:


dccapv_productid.value=Request.QueryString["ProductID"].ToString();


I know that works.
0
 

Author Comment

by:saturation
ID: 35040601
I tried using your first example and got the same

Parser Error Message: Server tags cannot contain <% ... %> constructs.



I do not have a codebehind page.   Is there another way to do this?
0
 
LVL 16

Expert Comment

by:BurnieP
ID: 35040924
Hi,

Here is an EE thread about the same question.

http://www.experts-exchange.com/Programming/Languages/.NET/ASP.NET/Q_25136616.html

You cannot set a value using server tags.

Also, using HiddenFields, they are not rendered in the DOM because of visible=false by default.  So you cannot use Javascript to set them.  The solution I propose is this :

Use a Label with style=display:false.  Then, I added a function to the onload of the <body> tag.  And added the Javascript function to your page.  This should set the label dccapv_productid with the querystring value of ProductID.


<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title></title>
<script type="text/javascript">
  function SetHiddenField() {
    var d = '<%=Request["ProductID"] %>';
    document.getElementById("<%= dccapv_productid.ClientID %>").innerText = d;
  }
</script>
</head>
<body onload="SetHiddenField();">
    <form id="form1" runat="server" >
        <asp:Label ID="dccapv_productid" runat="server" style="display:none" />
    </form>
  </body>
</html>

Open in new window

0
 
LVL 8

Accepted Solution

by:
Anurag Agarwal earned 500 total points
ID: 35044134
saturation try this (vb.net code)

<asp:HiddenField ID="dccapv_productid" runat="server" Value="<%= Request.QueryString("ProductID") %>" />

instead of "" use '' single inverted comma

<asp:HiddenField ID="dccapv_productid" runat="server" value= '<%= Request.QueryString("ProductID")%>' />

0
 
LVL 8

Expert Comment

by:Anurag Agarwal
ID: 35044142
i mean use this value= '<%= .... %>'

<asp:HiddenField ID="dccapv_productid" runat="server" value= '<%= Request.QueryString("ProductID")%>' />
0

Featured Post

Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

IntroductionWhile developing web applications, a single page might contain many regions and each region might contain many number of controls with the capability to perform  postback. Many times you might need to perform some action on an ASP.NET po…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …
Suggested Courses

751 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question