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Rank: Newbie
Groups: Member
Joined: 8/29/2007
Posts: 3
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I create an application which uses eoTreeView, eoCallBackPanel, aspMultiView, aspPageView, and an user control using aspDataList.
Il worked very well until I associate the TreeView whith the CallBackPanel. It give me a server error : "The state information is invalid for this page and might be corrupted."
See what : The ViewState string is like this :
ViewState: /wEWCALZ9K+aAgKMi5/UCgKyt/y7AwKTiJrzBALrg
YnUCgL3hLS5AwKWgJrzBAL269r4CdzyPyJzS577QgcZFkim1CH9KJxk,
/wEWCwLRrMGzDAKMi5/UCgKyt/y7AwKTiJrzBALrgYnUCgL3h
LS5AwKWgJrzBALum5TUCgKk5KW/AwKNuJrzBAL269r4CWi70jWHfVUk8bJkFPqDdRGlxneG
There is a comma in the ViewState string which separate 2 valid BASE-64 data.
I've wrote a small example to reproduce this error. (where can I upload or email to you?) Please give me a suggestion to prevent this problem. Thank you!
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Rank: Newbie
Groups: Member
Joined: 8/29/2007
Posts: 3
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Default.aspx
Code: HTML/ASPX
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<%@ Register Src="MyDataList.ascx" TagName="MyDataList" TagPrefix="uc1" %>
<%@ Register Assembly="EO.Web" Namespace="EO.Web" TagPrefix="eo" %>
<!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>
<table border="0">
<td valign="top">
<eo:TreeView ID="eoTreeView" runat="server" ControlSkinID="None" Height="250px" Width="200px">
<LookNodes>
<eo:TreeNode CollapsedImageUrl="00030301" DisabledStyle-CssText="background-color:transparent;border-bottom-style:none;border-left-style:none;border-right-style:none;border-top-style:none;color:Gray;padding-bottom:1px;padding-left:1px;padding-right:1px;padding-top:1px;"
ExpandedImageUrl="00030302" ImageUrl="00030301" ItemID="_Default" NormalStyle-CssText="PADDING-RIGHT: 1px; PADDING-LEFT: 1px; PADDING-BOTTOM: 1px; COLOR: black; BORDER-TOP-STYLE: none; PADDING-TOP: 1px; BORDER-RIGHT-STYLE: none; BORDER-LEFT-STYLE: none; BACKGROUND-COLOR: transparent; BORDER-BOTTOM-STYLE: none"
SelectedStyle-CssText="background-color:#316ac5;border-bottom-color:#999999;border-bottom-style:solid;border-bottom-width:1px;border-left-color:#999999;border-left-style:solid;border-left-width:1px;border-right-color:#999999;border-right-style:solid;border-right-width:1px;border-top-color:#999999;border-top-style:solid;border-top-width:1px;color:White;padding-bottom:0px;padding-left:0px;padding-right:0px;padding-top:0px;">
</eo:TreeNode>
</LookNodes>
<TopGroup Style-CssText="border-bottom-color:#999999;border-bottom-style:solid;border-bottom-width:1px;border-left-color:#999999;border-left-style:solid;border-left-width:1px;border-right-color:#999999;border-right-style:solid;border-right-width:1px;border-top-color:#999999;border-top-style:solid;border-top-width:1px;color:black;cursor:hand;font-family:Tahoma;font-size:8pt;padding-bottom:2px;padding-left:2px;padding-right:2px;padding-top:2px;">
<Nodes>
<eo:TreeNode ImageUrl="00030303" RaisesServerEvent="True" Text="Desktop">
</eo:TreeNode>
<eo:TreeNode ImageUrl="00030305" RaisesServerEvent="True" Text="My Computer">
</eo:TreeNode>
<eo:TreeNode ImageUrl="00030304" RaisesServerEvent="True" Text="My Documents">
</eo:TreeNode>
</Nodes>
</TopGroup>
</eo:TreeView>
</td>
<td valign="top">
<eo:CallbackPanel ID="eoCallbackPanel" runat="server" Triggers="{ControlID:eoTreeView;Parameter:},{ControlID:ucMyDataList;Parameter:}">
<asp:MultiView ID="msMultiView" runat="server">
<asp:View ID="msView1" runat="server">
<uc1:MyDataList ID="ucMyDataList" runat="server" />
</asp:View>
</asp:MultiView>
</eo:CallbackPanel>
</td>
</table>
</div>
</form>
</body>
</html>
Default.aspx.vb
Code: Visual Basic.NET
Imports System.Collections.Generic
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub eoTreeView_ItemClick(ByVal sender As Object, ByVal e As EO.Web.NavigationItemEventArgs) Handles eoTreeView.ItemClick
Select Case e.TreeNode.Text
Case "Desktop"
msMultiView.SetActiveView(msView1)
Case Else
msMultiView.ActiveViewIndex = -1
End Select
End Sub
End Class
MyDataList.ascx
Code: HTML/ASPX
<%@ Control Language="VB" AutoEventWireup="false" CodeFile="MyDataList.ascx.vb" Inherits="MyDataList" %>
<%@ Register Assembly="EO.Web" Namespace="EO.Web" TagPrefix="eo" %>
<eo:CallbackPanel ID="eoCallbackPanel" runat="server" Height="150px" Triggers="{ControlID:msButtonCreer;Parameter:},{ControlID:msList;Parameter:}"
Width="200px">
<asp:DataList ID="msList" runat="server" CellPadding="4" ForeColor="#333333" Height="56px" Width="248px" ShowFooter="False" ShowHeader="False">
<ItemTemplate>
<asp:Label ID="msLabelNom" runat="server"></asp:Label>
<br />
<asp:Button ID="msButtonSelect" runat="server" CommandName="select" Text="Select" />
<asp:Button ID="msButtonModifier" runat="server" CommandName="edit" Text="Modifier" />
<asp:Button ID="Button1" runat="server" CommandName="xYz" Text="XYZ" />
</ItemTemplate>
<EditItemTemplate>
Nom :
<asp:TextBox ID="msTextNom" runat="server"></asp:TextBox><br />
Prénom :
<asp:TextBox ID="msTextPrenom" runat="server"></asp:TextBox><br />
<asp:Button ID="msButtonOK" runat="server" CommandName="update" Text="OK" />
<asp:Button ID="msBoutonAnnuler" runat="server" CommandName="cancel" Text="Annuler" />
<asp:Button ID="msBoutonXyz" runat="server" CommandName="XyZ" Text="XYZ" />
</EditItemTemplate>
<SelectedItemTemplate>
Nom :
<asp:Label ID="msLabelNom" runat="server" Text="Label"></asp:Label><br />
Prénom :
<asp:Label ID="msLabelPrenom" runat="server" Text="Label"></asp:Label>
<br />
<asp:Button ID="msButtonModifier" runat="server" CommandName="edit" Text="Modifier" />
</SelectedItemTemplate>
<FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<SelectedItemStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
<AlternatingItemStyle BackColor="White" />
<ItemStyle BackColor="#E3EAEB" />
<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
</asp:DataList>
<asp:Button ID="msButtonCreer" runat="server" Text="Créer" /></eo:CallbackPanel>
MyDataList.ascx.vb
Code: Visual Basic.NET
Imports System.Collections.Generic
Partial Class MyDataList
Inherits System.Web.UI.UserControl
Private liste As List(Of Personnel)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If IsPostBack Then
liste = DirectCast(Session("Liste"), List(Of Personnel))
Else
liste = New List(Of Personnel)
liste.Add(New Personnel("WU", "Yu-Fu"))
liste.Add(New Personnel("DOCQUIER", "Laurant"))
Session("Liste") = liste
BindDataSource()
End If
End Sub
Protected Sub msList_CancelCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataListCommandEventArgs) Handles msList.CancelCommand
msList.EditItemIndex = -1
BindDataSource()
End Sub
Protected Sub msList_EditCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataListCommandEventArgs) Handles msList.EditCommand
msList.EditItemIndex = e.Item.ItemIndex
msList.SelectedIndex = -1
BindDataSource()
End Sub
Protected Sub msList_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataListCommandEventArgs) Handles msList.ItemCommand
System.Diagnostics.Debug.WriteLine("CommandName=" & e.CommandName)
End Sub
Protected Sub msList_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles msList.ItemDataBound
Dim p As Personnel = DirectCast(e.Item.DataItem, Personnel)
Select Case e.Item.ItemType
Case ListItemType.Item, ListItemType.AlternatingItem
DirectCast(e.Item.FindControl("msLabelNom"), Label).Text = p.ToString
Case ListItemType.SelectedItem
DirectCast(e.Item.FindControl("msLabelNom"), Label).Text = p.nomValue
DirectCast(e.Item.FindControl("msLabelPrenom"), Label).Text = p.prenomValue
Case ListItemType.EditItem
DirectCast(e.Item.FindControl("msTextNom"), TextBox).Text = p.nomValue
DirectCast(e.Item.FindControl("msTextPrenom"), TextBox).Text = p.prenomValue
End Select
End Sub
Protected Sub msList_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles msList.SelectedIndexChanged
BindDataSource()
End Sub
Protected Sub msButtonCreer_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles msButtonCreer.Click
liste.Add(New Personnel())
BindDataSource()
End Sub
Protected Sub msList_UpdateCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataListCommandEventArgs) Handles msList.UpdateCommand
Dim txtNom As TextBox = DirectCast(e.Item.FindControl("msTextNom"), TextBox)
Dim txtPrenom As TextBox = DirectCast(e.Item.FindControl("msTextPrenom"), TextBox)
Dim p As Personnel = liste(e.Item.ItemIndex)
p.nomValue = txtNom.Text
p.prenomValue = txtPrenom.Text
msList.EditItemIndex = -1
BindDataSource()
End Sub
Private Sub BindDataSource()
msList.DataSource = liste
msList.DataBind()
End Sub
End Class
App_Code\Personnel.vb
Code: Visual Basic.NET
Imports Microsoft.VisualBasic
Public Class Personnel
Public nomValue As String
Public prenomValue As String
Public Sub New()
nomValue = String.Empty
prenomValue = String.Empty
End Sub
Public Sub New(ByVal nom As String, ByVal prenom As String)
nomValue = nom
prenomValue = prenom
End Sub
Public Overrides Function ToString() As String
Return nomValue.ToUpper & " " & prenomValue
End Function
End Class
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Rank: Newbie
Groups: Member
Joined: 8/29/2007
Posts: 3
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Pre-notice
1. Environment : Visual Basic in Visual Studio Pro 2005 SP1 2. Please copy your file EO.Web.dll to the "Bin" directory before running this program. Steps to reproduce the error
1. Run the program. 2. Click "Desktop" in the TreeView 3. Click the bouton "Creer". 4. Click the bouton "Creer" again, and you'll see the error message. You'll find there is a "comma" in the ViewState string to separate 2 valid ViewState strings. And the error messages are :
Code:
Server Error in '/WebSite' Application.
--------------------------------------------------------------------------------
The state information is invalid for this page and might be corrupted.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: The state information is invalid for this page and might be corrupted.
Stack Trace:
[FormatException: Invalid character in a Base-64 string.]
System.Convert.FromBase64String(String s) +0
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +72
System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4
System.Web.UI.ClientScriptManager.EnsureEventValidationFieldLoaded() +172
[ViewStateException: Invalid viewstate.
Client IP: 127.0.0.1
Port:
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; InfoPath.1)
ViewState: /wEWCALZ9K+aAgKMi5/UCgKyt/y7AwKTiJrzBALrgYnUCgL3h
LS5AwKWgJrzBAL269r4CdzyPyJzS577QgcZFkim1CH9KJxk,
/wEWCwLRrMGzDAKMi5/UCgKyt/y7AwKTiJrzBALrgYnUCgL3hLS5AwKWgJrzBAL
um5TUCgKk5KW/AwKNuJrzBAL269r4CWi70jWHfVUk8bJkFPqDdRGlxneG
Referer: http://localhost:1738/WebSite/
Path: /WebSite/default.aspx]
[HttpException (0x80004005): The state information is invalid for this page and might be corrupted.]
System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +116
System.Web.UI.ClientScriptManager.EnsureEventValidationFieldLoaded() +209
System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) +67
System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) +106
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +32
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +174
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6953
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +154
System.Web.UI.Page.ProcessRequest() +86
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.default_aspx.ProcessRequest(HttpContext context) +29
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,217
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Hi,
Thanks for the detailed information. We have reproduced the error and we are digging into right now. We will post update you as soon as we find anything.
Thanks
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,217
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Hi,
We have identified and fixed the issue. Please see your private message for download location of the patched build.
Thanks
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