ViewState Property

Question

Hi,

VB.NET 2013 | ASP.NET 4.5

I have a website and are exporting most of the code into a seperate DLL file and I need to know how to use the ViewState property in a DLL (not Web Form) as a public shared property. Visual Studio keeps saying I need to add Imports ...Web.UI then it still complains when it's added not only with the accessing the non shared member error because it still complains if the shared keyword is removed.

In a WebForm the code would be:

Public Shared Property MyProperty() As Integer
  Get
      If ViewState("SomeName") Is Nothing Then
        CInt(ViewState("SomeName") = 1)
      End If
      Return CInt(ViewState("SomeName"))
  End Get
  Set (value As Integer)
      CInt("SomeName") = value
  End Set
End Property

Any ideas?

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Answer 1

I see only a part, but probably senseless code. An ASP.Net program has no state, it means that all data is removed when it is posted. Therefore the Viewstate has only sense if you first get the viewstate back.

Use the SessionState instead of that, much surer.

http://msdn.microsoft.com/en-us/library/system.web.sessionstate.httpsessionstate(v=vs.110).aspx

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Success
Cor

Answer 2

Viewstate is not going to work for you not in some DLL scenario. If this DLL is sitting on the Web server as part of the ASP.NET solution, then you need to be using  a HTTP Session State object  that is accessible by the ASP.NET UI and DLL hosted by the Web server to keep state between the two.

Answer 3

Hi,

For asp.net issues, I would recommend you post them in asp.net forum to get supports.

https://forums.asp.net

Thanks for your understanding.

Regards.

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