Asp.net Client State Management - Hidden Fields

     The Hidden Field control is used to store a value that needs to be persisted across posts to the server. It is rendered as an <input type= "hidden"/> element.

Normally view state, session state, and cookies are used to maintain the state of a Web Forms page. However, if these methods are disabled or are not available, you can use the Hidden Field control to store state values.

         To specify the value for a Hidden Field control, use the Value property. You can provide a routine that gets called every time the value of the Hidden Field control changes between posts to the server by creating an event handler for the Value Changed event.

Implementation of Hidden Field:

DEMO : HiddenField
<asp:HiddenField ID="HiddenField1" runat="Server" Value="This is the Value of Hidden field" />             <asp:Button ID="Button1" runat="Server" OnClick="ChangeLabelText" Text="Change Label Text to Hiidden Field Value" />                                                                         // CODE BEHIND             // Fires when Button is clicked             protected void ChangeLabelText(object sender, EventArgs e)             {                 Label1.Text = hiddeFieldValue.Value;             }

Advantages:

a. Easy to implement
b. Hidden fields are supported by all browsers
c. Enables faster access of information because data is stored on client side

Disadvantages:

a. Not secure because the data is stored on Client side.
b. Decreases page performance if too many hidden fields
c. Only support single value.