HiddenField Example in ASP.NET using C#


Posted in : ASP.Net Posted on : November 22, 2010 at 5:10 PM Comments : [ 0 ]
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In this article we will introduce with HiddenField control in ASP.NET using C#.

HiddenField Example in ASP.NET using C#

The HiddenField control is used to store a value. It is rendered element. View state, session state and cookies are used to maintain the state of a web forms page. You can use HiddenField instead of view state, session state and cookies. In this example when you click the Hidden value button the label displayed a value. When you click the button again and again the value will decrease by 1.

HiddenField.aspx (Design page):

HiddenField.aspx (source code):


		<%@
		Page
		Title=""
		Language="C#"
		MasterPageFile="~/RoseindiaMaster.master"
		
		
		AutoEventWireup="true"
		CodeFile="HiddenField.aspx.cs"
		Inherits="HiddenField" 
		%>
		
		<asp:Content
		ID="Content1"
		
		ContentPlaceHolderID="head"
		Runat="Server">
		</asp:Content>
		<asp:Content
		ID="Content2"
		
		ContentPlaceHolderID="ContentPlaceHolder1"
		Runat="Server">
		<div>
		<h2
		style="color:Green">HiddenField 
		in ASP.NET 4 , C#</h2>
		<asp:HiddenField
		ID="hiddenField"
		runat="server"
		/>
		<br
		/>
		<asp:Button
		ID="button"
		runat="server"
		Text="Hidden 
		value" 
		onclick="button_Click"
		/>
		<br
		/>
		<br
		/>
		
		&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
		
		<asp:Label
		ID="label"
		runat="server"
		Font-Bold="True"
		ForeColor="#000099"
		/>
		</div>
		</asp:Content>
		

HiddenField.aspx.cs (C# code file):


	using System;
		
		using 
		System.Collections.Generic;
		
		using System.Linq;
		
		using System.Web;
		
		using System.Web.UI;
		
		using System.Web.UI.WebControls;
		
		public 
		partial
		class
		HiddenField 
		: System.Web.UI.Page
		
		{
		protected
		void 
		Page_Load(object 
		sender, EventArgs 
		e)
		{
		}
		protected
		void 
		button_Click(object 
		sender, EventArgs 
		e)
		{
		if 
		(hiddenField.Value == 
		String.Empty)
		hiddenField.Value = 
		"101";
		hiddenField.Value = (Convert.ToInt32(hiddenField.Value) 
		- 1).ToString();
		label.Text = hiddenField.Value;
		}
		}
		

Output:

Download source code
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