595

Dropdown viewstate is lost when hiding panel containing grid with dropdown?

Graham posted over 13 years ago

Hi,

Does anyone know how to fix this issue?

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.InvalidOperationException: Infragistics.Web.UI.ListControls.DropDownItemCollection ViewState is corrupted.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[InvalidOperationException: Infragistics.Web.UI.ListControls.DropDownItemCollection ViewState is corrupted.]
   Infragistics.Web.UI.Framework.ObjectCollection.LoadViewStateItems(ArrayList itemList) +426
   Infragistics.Web.UI.Framework.ObjectCollection.LoadViewState(Object savedState) +220
   Infragistics.Web.UI.Framework.ObjectCollection.System.Web.UI.IStateManager.LoadViewState(Object savedState) +39
   Infragistics.Web.UI.ListControls.ListControl.LoadViewState(Object savedState) +138
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +183
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +249
   System.Web.UI.ControlCollection.Add(Control child) +80
   Infragistics.Web.UI.GridControls.WebDataGrid.ConnectEditorProviders() +200
   Infragistics.Web.UI.GridControls.WebDataGrid.CreateChildControls() +28
   System.Web.UI.Control.EnsureChildControls() +87
   Infragistics.Web.UI.GridControls.WebDataGrid.EnsureChildControls() +117
   System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +23
   System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +327
   System.Web.UI.Page.FindControl(String id) +38
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +626
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1743

Version Information: Microsoft .NET Framework Version:2.0.50727.5444; ASP.NET Version:2.0.50727.5420

Server Error in '/' Application.

Infragistics.Web.UI.ListControls.DropDownItemCollection ViewState is corrupted.

Parents

12004

[Infragistics] Duane Hoyt posted over 13 years ago

Hello netdocs,

You can attach a sample on the thread that I can reproduce on my machine that will receive the error "Infragistics.Web.UI.ListControls.DropDownItemCollection ViewState is corrupted.". This will help for troubleshooting and determining any bugs.

Also you can provide steps to reproduce which may determine the cause of the behavior.

Let me know if you have any questions with this matter. Thank you.
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595

Graham posted over 13 years ago in reply to [Infragistics] Duane Hoyt

Hi,

The html page has a panel and then an update panel, a grid and a few controls.

If you use server side code below in a button to close/hide the panel you'll get the drop down error.

' close panel.
panelItemsSelected.Visible = False

Here is the html:

<

asp:Panel ID="panelItemsSelected" runat="server"

CssClass="webdatagridpanelXHTML" TabIndex="-1" Visible
="False">

<asp:UpdatePanel ID="UpdatePanelItems" runat
="server">

<ContentTemplate>

<asp:Label ID="lblGridCaptionSelected" runat="server" BorderWidth="0px" TabIndex
="-1"

BackColor="Blue" ForeColor="White" Height="15px" Width="100%">Invoice Lines - Selected Items</asp:Label
>

<ig:WebDataGrid ID="WebDataGrid1" runat="server" DataKeyFields="Row_No" AutoGenerateColumns
="False"

Width="100%" Height="1%"

StyleSetName="Office2007Blue" EnableAjax="False" EnableDataViewState="True"><Behaviors><ig:Activation></ig:Activation><ig:EditingCore AutoCRUD="false"><Behaviors><ig:CellEditing><EditModeActions MouseClick="None" EnableOnKeyPress="True" /></ig:CellEditing></Behaviors></ig:EditingCore><ig:Selection ><AutoPostBackFlags CellSelectionChanged="True" /></ig:Selection><ig:VirtualScrolling></ig:VirtualScrolling><ig:ColumnResizing Enabled="True"></ig:ColumnResizing><ig:Sorting></ig:Sorting></Behaviors></ig:WebDataGrid
>

<asp:Label ID="Label2" runat="server" TabIndex="-1" Text="Item" Width="60px" CssClass="userlabel"></asp:Label
>

<asp:DropDownList ID="ddlItem" runat="server" CssClass="inputRAlignWhite" Width
="160px"

BorderWidth
="0px">

</asp:DropDownList
>

  

<asp:Label ID="Label1" runat="server" TabIndex="-1" Text="Item_Value" Width
="60px"

CssClass="userlabel"></asp:Label
>

<asp:TextBox ID="txtItemValue" runat="server" CssClass="inputRAlignWhite" Width="60px"></asp:TextBox
>

  

<asp:Button ID="btnAddItem" runat="server" CssClass="menubutton" Text
="Add Item"

ToolTip="Add line entry to selected grn lines." Width="66px"
/>

 <asp:Label ID="lbSpacer3" runat="server" Width="1px"></asp:Label
>

<asp:Button ID="btnDelete" runat="server" CssClass="menubutton" Enabled="False" Text
="Delete Line"

ToolTip="Delete line entry from Invoice lines." Width="90px"
/>

  <asp:Button ID="btnDeleteAllLines" runat="server" CssClass
="menubutton"

Enabled="False" Text="Delete All Lines" ToolTip
="Delete line entry from Invoice lines."

Width="100px"
/>

<br
/>

<asp:Label ID="lbTotNet" runat="server" TabIndex="-1" Text="Net_Total" Width
="60px"

CssClass="userlabel"></asp:Label
>

<asp:TextBox ID="txtTotalNet" runat="server" CssClass="inputRAlign" ReadOnly
="True"

TabIndex="-1" Width="80px"></asp:TextBox
>

   

<asp:Label ID="lbTotLines" runat="server" TabIndex="-1" Text
="Invoice_Line_Total"

Width="90px" CssClass="userlabel"></asp:Label
>

 <asp:TextBox ID="txtTotalLines" runat="server" CssClass="inputRAlign" ReadOnly
="True"

TabIndex="-1" Width="80px"></asp:TextBox
>

 <asp:Label ID="lbMinus" runat="server" Text="-" CssClass="userlabel"></asp:Label
>

  <asp:Label ID="lbTotalGRN" runat="server" TabIndex="-1" Text
="GRN_Line_Total"

Width="80px" CssClass="userlabel"></asp:Label
>

<asp:TextBox ID="txtTotalGRN" runat="server" CssClass="inputRAlign" ReadOnly
="True"

TabIndex="-1" Width="80px"></asp:TextBox
>

 <asp:Label ID="lblEquals" runat="server" Text="=" CssClass="userlabel"></asp:Label
>

 

<asp:Label ID="lbDiffTotal" runat="server" TabIndex="-1" Text
="Difference_Total"

Width="84px" CssClass="userlabel"></asp:Label
>

<asp:TextBox ID="txtTotalDiff" runat="server" CssClass="inputRAlign" ReadOnly
="True"

TabIndex="-1" Width="80px"></asp:TextBox
>

</ContentTemplate
>

</asp:UpdatePanel
>

</asp:Panel
>
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12004

[Infragistics] Duane Hoyt posted over 13 years ago in reply to Graham

Hello netdocs,

The error seems to occur when wrapping the grid with an UpdatePanel and hiding the panel. In the case of hiding the panel using server-side code you can set the PostBackTrigger that will perform a full postback when a button is clicked inside an UpdatePanel.

I have attached a sample for this.

Let me know if you have any questions with this matter. Thank you.

WebDataGrid_DataTable_CS.zip
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