hidden field value empty

Question

how to solve on first time page load (redirect one page to second page) hidden field value empty.

Note:-

protected void imgbtncheckout_Click(object sender, EventArgs e)
{
try
{

double checkamount = 250.0;

double codeBehindValue = Convert.ToDouble(HDNshoppingamt.Value); // debugging HDNshoppingamt value empty.
if (codeBehindValue >= checkamount)
{

if (Session["userid"] != null)
{

...

Prashant Malav · Answer

Dear Amit value change not a fixed. first time page load not get hidden field value . how to update hidden field value. i want to redirect one page to second page hidden field value lets(62)or(2000) any value so i get right value. code(aspx) code(aspx.cs) protected void imgbtncheckout_Click(object sender EventArgs e) { try { double codeBehindValue = 0.0; double checkamount = 250.0; if (!string.IsNullOrEmpty(HDNshoppingamt.Value)) { codeBehindValue = Convert.ToDouble(HDNshoppingamt.Value); } if (codeBehindValue >= checkamount) { if (Session[userid] != null) { ... ... ..

Amit Singh · Answer

Hey 1.https://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.hiddenfield.value%28v=vs.110%29.aspx 2. $(document).ready(function() { $ ( ).val(123); });