Retrieve value of Hidden field

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Hi everyone,
I am using asp.net with c#. I m getting problem in retrieve hidden field value.

<input type="hidden" id="hdn_perchher_id_<%# Container.ItemIndex %>" value='<%# Eval("user_id") %>' />

So anyone tell me how to get value or id of above hidden field in cs file.

C#

if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
    Repeater Repeater2 = (Repeater)e.Item.FindControl("rpt_Common_Perchher");
    HiddenField hd = (HiddenField)e.Item.FindControl("hdn_perchher_id_<%# Container.ItemIndex %>");

    cls_PerchhConnection perchhconnection = new cls_PerchhConnection();
    DataTable dt_common_perchhers = new DataTable();
    int user_id1 = Convert.ToInt32(Session["perchh_uid"]);

    dt_common_perchhers = perchhconnection.Proc_GetCommonPerchhers(user_id1, 57);

    Repeater2.DataSource = dt_common_perchhers;
    Repeater2.DataBind();

In above code i got hd = null in place of null it will be show some value of control.
Please sort it out.

Thanx in Advance.

Posted 9-Jan-13 22:14pm

faisal23

Updated 9-Jan-13 22:45pm

v3

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Comments

Suvabrata Roy 10-Jan-13 4:17am

What kind of problem...?

faisal23 10-Jan-13 4:18am

I want to get value of this hidden field which is dynamic and bind in repeater..

Suvabrata Roy 10-Jan-13 4:22am

R you trying to get the value from code behind or in javascript?

faisal23 10-Jan-13 4:25am

in cs file i have to use its value as a parameter for other function.
If i got the idea how to get id of this control i able find its value.

sarathsprakash 10-Jan-13 4:25am

do you want to retrieve the value in the next form after submitting

faisal23 10-Jan-13 4:29am

No it is on same form. I have 2 repeaters in parent repeater this hidden field retrieved dynamically in nested repeater i want the value of this hidden field.
So i want how to retrieve id or value of this control for passing parameter to one of the function.

faisal23 10-Jan-13 4:35am

You are giving me solution but its not working for me you dont see my problem it is binded dynamically and its id "hdn_perchher_id_<%# Container.ItemIndex %>" so how i can do this. IT

sarathsprakash 10-Jan-13 4:38am

just go through the below solution and reply

4 solutions

Solution 1

For getting the the value in the cs file

C#

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        String a = HiddenField1.Value;
        Response.Write(a);
    }
   
}

Posted 9-Jan-13 22:31pm

sarathsprakash

Solution 2

Hi,

If you want to get it in your cs page then transfer using Javascript through Query string, Ajax Call call or via post.

Or

Select the current selection value to a hidden field (Sever Control) and access it in your cs page, for multiple value separate using comma.

Posted 9-Jan-13 22:38pm

Suvabrata Roy

Comments

faisal23 10-Jan-13 4:55am

It is not server control.

Suvabrata Roy 10-Jan-13 4:58am

Yes, I know insert another hidden field (Server Control) and on selection of your row you will set the value to that server hidden filed via Javascript and now get it back on server.

Solution 3

C#

<asp:hiddenfield id="hdnEmailID" runat="server" xmlns:asp="#unknown" />


<pre lang="cs">protected void LinkGroupSummary_Click(object sender, EventArgs e)
        {
            hdnEmailID.Value = this.EmailList;
            Server.Transfer("Default2.aspx");

        }

C#

if (Page.PreviousPage != null)
                    {
                        HiddenField MyHiddenValue = (HiddenField)Page.PreviousPage.FindControl("hdnEmailID");
                        if (MyHiddenValue != null)
                        {
                            string email = MyHiddenValue.Value;
                        }
                    }

Posted 9-Jan-13 22:53pm

puskar gupta

Comments

faisal23 10-Jan-13 4:56am

First of all it is not server control and second is that it is dynamic bind in repeater means contains many values.

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

rizwan muhammed khan gouri · Accepted Answer · 2013-01-09T23:08:00

Solution 4

Hello

You did use rounge procedure for getting value of hiddefield with in repeater

in simple way I provide you :-

<input type="hidden" id="Rizwan" value='<%# Eval("user_id") %>' />

AND YOUR CODE BEHIND :-

XML

HiddenField hd = (HiddenField)e.Item.FindControl("Rizwan");

I hope your Problem will resolve if not Please give me your Comment.

Posted 9-Jan-13 23:08pm

rizwan muhammed khan gouri

Comments

faisal23 10-Jan-13 5:27am

Hi I update my code according to you but i got error. Hidden variable is null.
"System.NullReferenceException: Object reference not set to an instance of an object"

rizwan muhammed khan gouri 10-Jan-13 5:50am

can you give me your code

rizwan muhammed khan gouri 10-Jan-13 5:50am

runat="server" also used

Manoj Kumar Choubey 11-Jan-13 2:07am

Very Nice Rizwan muhammed khan gouri

Retrieve value of Hidden field

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Retrieve value of Hidden field

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