Get the Value of an asp:HiddenField using jQuery

Question

I have two pages. From the first page, I open a modal with a querystring that holds that value of a client name. I then use this to set a hiddenfield on the modal that opene

Answer 1

Because jQuery knows nothing about asp:HiddenField. It looks in the HTML structure where you have . So there's no input with ID= HiddenFieldServerDateTime. There are a few ways to overcome this:

• Use a css selector:

  with the following selector: var serverDateTime = $(".SomeStyle").val();

  CssClass is not an available class on the HiddenField class (and it doesn't have an Attributes collection, so you can't add it manually).

• Use ClientID property:

  var serverDateTime = $("#<%= HiddenFieldServerDateTime.ClientID %>").val();
  

• Wrap the hidden field in something you can select:

   

  var serverDateTime = $('.date-time-wrap input[type=hidden]').val();