Question on ViewState

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As per my understanding, if viewstate is enabled at the page level, then page will be able to restore control's postback value. Then it is been stored in HTML hidden field name __VIEWSTATE

Now I have following code

XML

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" EnableViewState="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server" EnableViewState="true"></asp:TextBox>
        <asp:TextBox ID="TextBox2" runat="server" EnableViewState="true"></asp:TextBox>&nbsp;
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
        <asp:Button ID="Button2" runat="server" Text="Button" />
    </div>
    </form>
</body>
</html>

Now enen after and before postback __VIEWSTATE value remain constant as below

XML

<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTg4ODA4NDE0NmRkj7tbr766d8QnsN+zf6TsvmqFiao=" />

I think __VIEWSTATE value should be changed after postback if I enter something to textbox.

Please let me know your thought regarding the same.

Posted 2-Feb-12 0:59am

Sujeet Pardeshi

Updated 2-Feb-12 1:44am

Chris Maunder773.1K

v2

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Martin Arapovic · Answer 1 · 2012-02-02T01:28:00

Solution 1

Yes,

You are right!
ViewState can be controlled on page level and at individual asp.net server control...

For more details read this[^].

Posted 2-Feb-12 1:28am

Martin Arapovic