June 2002
Intermediate to advanced
816 pages
28h 12m
English
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Name
EnableViewState
Synopsis
Boolean = Page.EnableViewState Page.EnableViewState = Boolean
Returns or sets a Boolean value that indicates
whether the Page maintains its view state and that of server controls
it contains. The default value of this property is
True, which means that the page maintains its view
state.
Parameters
-
Boolean A Boolean value that indicates whether the page maintains its view state.
Example
The following code example sets EnableViewState to
False using the EnableViewState
attribute of the @ Page directive and displays its
value on the page:
<%@ Page Language="vb" EnableViewState="True" %>
<html>
<head>
<title></title>
<script runat="server">
Sub Page_Load( )
If Page.EnableViewState = True Then
Message.Text = "ViewState is enabled."
Else
Message.Text = "ViewState is disabled."
End If
End Sub
</script>
</head>
<body>
<form runat="server">
<asp:label id="Message" runat="server"/>
</form>
</body>
</html>Notes
The EnableViewState property can also be specified using the
EnableViewState attribute of the @ Page directive, as shown in the example.
Examining a page’s HTML source using a
browser’s View Source feature shows the effect of
the EnableViewState property. If the EnableViewState property is set
to False, the source will look similar to:
<input type="hidden" name="_ _VIEWSTATE"
value="dDwxMDA3MzE2MzEyOzs+" />If the EnableViewState property is set to True,
the source will look similar to:
<input type="hidden" name="_ _VIEWSTATE" value="dDwxMDA3MzE2MzEyO3Q8O2w8aTwxPjs+O2w8dDw7bDxpPDM+Oz47bDx0PHA8cDxsPF ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.