C# HiddenField value not passing

Question

I am setting my hidden field value using jquery like this

select: function (event, ui) {
    $("#<%=hfPatientId.ClientID %>").val(ui.item.val);
}

and i want to store this value in one of my property. in my code behind i did it like this.

objTicketBO.Patient_Id = hfPatientId.Value.ToString();

now my problem is my selected value is binding in right side of = but it is not binding on left side. ie on hovering over .Value i am getting the value. but on running this code it is throwing error NullValueValidation.

Answer 1

Problem: Your code

 select: function (event, ui) {
           $("#<%=hfPatientId.ClientID %>").val(ui.item.val);
        }

can't work, because you are try to select ASP element naming in jQuery, where are final HTML elements.

Solution: Supposing ASP will produce that element as

 <input type="hidden" name="ClientID" id="ClientID" value="225">

so jQuery function you are seeking for is

 select: function (event, ui) {
           $("#ClientID").val(ui.item.val);
        }

If ID of that hidden element is not ClientID , change jQuery selector accordingly.

Answer 2

thx everyone i found an problem...

i did some changes in my property..

before:-

  public string Patient_Id
    {
       get { return _patient_id; }
       set { _patient_id = Patient_ID; }
    }

Updated:-

  public string Patient_Id
   {
       get { return _patient_id; }
       set { _patient_id = value; }
   }

it's working fine now. Thanks again