Dataset Manually Put Into The Viewstate Of A Web UserControl Not Kept After Postback
Feb 2, 2010
I've created a Web User Control that is placed on the page at design time. It's purpose is to pop up with a grid of items the user is to choose from. So I've got a gridview on it. And this code in the usercontrol:
Public Property DataTable() As Data.DataTable
Get
If Not IsNothing(ViewState("_SelectGridDataTable")) Then
Return ViewState("_SelectGridDataTable")
Else
Return Nothing
End If
End Get
Set(ByVal value As Data.DataTable)
ViewState("_SelectGridDataTable") = value
End Set
End Property
So when the user clicks on a button on the page, I put this in the code on the page:
SelectGrid2.DataTable = GetContacts().Tables(0)
SelectGrid2.Show()
And this works fine. The grid pops up (using jQuery) and the grid is shown. The problem is, that when the user clicks the "OK" button on the UserControl, the ViewState("_SelectGridDataTable") is always nothing. And I don't get it, since it's in the viewstate.. ?!? So does viewstate here not REALLY mean viewstate?
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What I am I missing? Code Below.
.ascx - I left out inherits and codebehind
[Code]....
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at MyCompany.MyApplication.Appliance.Page_Load(Object sender, EventArgs e) in C:Documents and SettingsshellamaMy DocumentsMyApplicationAppliance.aspx.cs:line 54
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The values are stored in viewstate fr the postback... Does everysubsequent post back increase the viewstate size?
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When we disabled the viewstate in gridview its lose value but this case not true with Textbox control why?
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