HtmlInputHidden Control

Definition and Usage

The HtmlInputHidden control is used to control an <input type="hidden"> element. In HTML, this element is used to create a hidden input field.

Properties and Events

Property	Description
id	A unique id for the control
runat	Specifies that the control is a server control. Must be set to "server"
Value	The value of the hidden field

Event	Description
ServerChange	When the content of the element has changed

Example 1

In the following example we declare one HtmlInputHidden control, one HtmlInputText control, one HtmlInputButton control, and one HtmlGeneric control in an .aspx file (remember to embed the controls inside an HtmlForm control). When the submit button is triggered, the submit subroutine is executed. The submit subroutine sets the value of the hidden field equal to value of the input field, then it displays the value of the hidden field in the span control:

<script runat="server">
  Sub submit(Source As Object, e As EventArgs)
    hidden1.Value=string1.Value
    s1.InnerHtml="Hidden value: <b>" + hidden1.Value + "</b>"
  End Sub
</script>

<html>
<body>
<form runat="server">
<input id="hidden1" type="hidden" runat="server">
Enter some text:
<input id="string1" type="text" size="40" runat="server">
<p>
<input type="submit" value="Enter" OnServerClick="submit"
runat="server">
</p>
<p><span id="s1" runat="server"/></p>
</form>
</body>
</html>

Jump to: Top of Page or HOME or Printer friendly page

Search W3Schools:

What Others Say About Us

Does the world know about us? Check out these places:

Dogpile Alta Vista MSN Google Excite Lycos Yahoo Ask Jeeves

We Help You For Free. You Can Help Us!

W3Schools is for training only. We do not warrant its correctness or its fitness for use. The risk of using it remains entirely with the user. While using this site, you agree to have read and accepted our terms of use and privacy policy.

How we converted to XHTML

Password Protect
Your Web Pages

Your own Web Site?

Read W3Schools
Hosting Tutorial

$15 Domain Name
Registration
Save $20 / year!

Advertise
at W3Schools

Only 0.5 CPM

SELECTED LINKS

University Online
Master Degree
Bachelor Degree

Web Software

The Future of
Web Development

Jobs and Careers

Web Security
Web Statistics
Web Standards

PARTNERS

W3Schools
TopXML
VisualBuilder
XMLPitstop
DevelopersDex
DevGuru
Programmers Heaven
The Code Project
Tek Tips Forum
ZVON.ORG
TopXML Search