Access an asp:hiddenfield control in JavaScript

Question

What is the best way to access an ASP.NET HiddenField control that is embedded in an ASP.NET PlaceHolder control through JavaScript? The Visible attribute is set to false i

Answer 1

Try this:

function popup(lid)
{
    var linkid=lid.id.toString();    
    var lengthid=linkid.length-25;    
    var idh=linkid.substring(0,parseInt(lengthid));  
    var hid=idh+"hiddenfield1";

    var gv = document.getElementById("<%=GridViewComplaints.ClientID %>");
    var gvRowCount = gv.rows.length;
    var rwIndex = 1;
    var username=gv.rows[rwIndex].cells[1].childNodes[1].innerHTML;
    var prdid=gv.rows[rwIndex].cells[3].childNodes[1].innerHTML;
    var msg=document.getElementById(hid.toString()).value;
    alert(msg);


    document.getElementById('<%= Labelcmpnme.ClientID %>').innerHTML=username;
    document.getElementById('<%= Labelprdid.ClientID %>').innerHTML=prdid;
    document.getElementById('<%= TextBoxviewmessage.ClientID %>').value=msg;
    return false;
}