Set a value for the hidden field on the page using client-side scripting

When working with an ASP.net application, I often use Page.ClientScript.RegisterHiddenField("hf_Name", value). However, I am curious about how to override or set a new value for the same Hidden Field 'hf_Name' in the code behind. Can you provide guidance on this?

Answer №1

RegisterHiddenField does not generate a server-side control; it simply creates a basic

<input type="hidden" name="myhiddenField">

Page.FindControl("myhiddenField")
will not locate anything on the server side, and even
document.getElementById("myhiddenField")
will not return anything on the client side since only the name and not the id is specified.

Therefore, if you need to access it on the server side, it is advisable to use a HiddenField server control or at least utilize an html-input with the attributes type=hidden and runat="server".

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