ASP.NET - ViewState: empty placeholder generates view state

Posted by Budda on Stack Overflow See other posts from Stack Overflow or by Budda
Published on 2011-01-01T18:47:26Z Indexed on 2011/01/01 18:54 UTC
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Filed under:

ASP.NET

|

viewstate

|

asp.net-4.0

On my web-page I have PlaceHolder, not controls are loaded into it.

<asp:PlaceHolder ID="PlaceHolderStatMain" runat="server">
</asp:PlaceHolder>

I am looking the ViewState generated for the page, it is the following:

<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJLTg1NDkyNTUzD2QWAgIDD2QWAgIND2QWAmYPZBYCAgEPZBYCZg9kFgJmD2QWBmYPFQEYL3N0YXRfc3RhZGl1bS9sZWFndWVfV0VGZAIBDxUBGC9zdGF0X3N0YWRpdW0vbGVhZ3VlX0VFRmQCAg8VARgvc3RhdF9zdGFkaXVtL2xlYWd1ZV9GQ1VkZEuSBUr5LFL6WfCehNBJgjrq0GzwWCWN2qlU70V7LAAb" />

When I set EnableViewState to false:

<asp:PlaceHolder ID="PlaceHolderStatMain" runat="server" EnableViewState="false">
</asp:PlaceHolder>

The viewstate content was decreased significantly:

<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJLTg1NDkyNTUzZGTTn8Y28VwmpE/K7yPPkLFvhrqMdU8THijFW/BMFzk0tQ==" />

Question: how to remove 'useless' viewstate content without disabling viewstate for placeholder himself (I would like other control loaded into placeholder to has viewstate)?

Is it possible at all?

Any thought are welcome!

P.S. I am using ASP.NET 4.0

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