Ticket T266763

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ASPxGridView - The " 'DevExpress.Web.Data.WebDataRow' does not contain a property with the name 'X' " exception is thrown in certain cases

Christopher Calleja Urry

created 10 years ago

Client keeps getting random exceptions:

C#
System.Web.HttpException: DataBinding: 'DevExpress.Web.Data.WebDataRow' does not contain a property with the name 'INPROFILSysRef'.  

Generated: Tue, 14 Jul 2015 11:11:02 GMT  


System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.Web.HttpException: DataBinding: 'DevExpress.Web.Data.WebDataRow' does not contain a property with the name 'INPROFILSysRef'.  
   at System.Web.UI.DataBinder.GetPropertyValue(Object container, String propName)  
   at System.Web.UI.DataBinder.Eval(Object container, String[] expressionParts)  
   at ASP.shoptoshoptransfers_createshoptoshoptransfer_aspx.__DataBinding__control17(Object sender, EventArgs e)  
   at DevExpress.Web.Internal.DataHelper.PerformSelect()  
   at DevExpress.Web.Internal.DataContainer.PerformSelect()  
   at DevExpress.Web.ASPxDataWebControlBase.DataBindInternal()  
   at DevExpress.Web.ASPxWebControl.DataBind()  
   at DevExpress.Web.ASPxComboBox.DataBind()  
   at System.Web.UI.Control.DataBindChildren()  
   at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)  
   at DevExpress.Web.GridViewBaseTemplateContainer.DataBind()  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControlBase.DataBindContainers(Control parent, Boolean bindContents, Boolean bindTemplates)  
   at DevExpress.Web.ASPxWebControl.CreateChildControls()  
   at System.Web.UI.Control.EnsureChildControls()  
   at System.Web.UI.Control.PreRenderRecursiveInternal()  
   at System.Web.UI.Control.PreRenderRecursiveInternal()  
   at System.Web.UI.Control.PreRenderRecursiveInternal()  
   at System.Web.UI.Control.PreRenderRecursiveInternal()  
   at System.Web.UI.Control.PreRenderRecursiveInternal()  
   at System.Web.UI.Control.PreRenderRecursiveInternal()  
   at System.Web.UI.Control.  
PreRenderRecursiveInternal()  
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

… And I'm not too sure why it does this.

The Column:

ASPx
<dx:GridViewDataTextColumn  
                                Caption="Product"  
                                FieldName="INPROFILDescription" >  
                                <EditItemTemplate>  
                                    <dx:ASPxComboBox  
                                        ID="cbProduct"  
                                        runat="server"  
                                        EnableCallbackMode="true"  
                                        CallbackPageSize="10"  
                                        KeyFieldName="SYSREF"  
                                        OnInit="ddlProduct_OnInit"  
                                        SelectionMode="Single"  
                                        ValueType="System.Decimal"  
                                        ValueField="SYSREF"  
                                        OnItemsRequestedByFilterCondition="ASPxComboBox1_OnItemsRequestedByFilterCondition"  
                                        OnItemRequestedByValue="ASPxComboBox1_OnItemRequestedByValue"  
                                        Value='<%# Bind("INPROFILSysRef") %>'  
                                        IncrementalFilteringMode="Contains"  
                                        Width="100%"  
                                        DropDownWidth="800"  
                                        TextFormatString="{0} - {1} ({2})"  
                                        DropDownStyle="DropDownList">  
                                        <ClientSideEvents  
                                            EndCallback=" function(s, e) {  
                                                                         if (s.GetItemCount() == 1) {  
                                                                            s.SetValue(s.GetItem(0).value);  
                                                                            s.HideDropDown();  
                                                                        }  
                                                                    }"  
                                            KeyDown="function(s, e) {  
                                             e = window.event;  
                                             if (e.which == 17 || e.which == 74 || e.keyCode == 13)  
                                             {  
                                                e.preventDefault();  
                                              }  
                                            }"/>  
                                        <Columns>  
                                            <dx:ListBoxColumn FieldName="SYSREF" Visible="False" />  
                                            <dx:ListBoxColumn FieldName="CODE" Caption="Code" Width="100" />  
                                            <dx:ListBoxColumn FieldName="DESC1" Caption="Description" Width="200"/>  
                                            <dx:ListBoxColumn FieldName="BARCODES" Caption="Barcode" Width="350"/>  
                                        </Columns>  
                                    </dx:ASPxComboBox>  
                                </EditItemTemplate>  
                            </dx:GridViewDataTextColumn>

Show previous comments (4)

Christopher Calleja Urry 10 years ago

These seem to happen very randomly as the page is used a lot. And I haven't been able to replicate locally.

Artem (DevExpress Support) 10 years ago

Hello Christopher,

The issue may occur if your ASPxGridView is bound at runtime. I see that you're using ASPxComboBox with server-side events. It may force building ASPxGridView hierarchy earlier than the DataSource property is assigned (ASPxGridView isn't bound yet). Please make sure that the DataSource property is defined on each round trip to the server either in the Page.Init event handler or in the ASPxGridView.DataBinding event handler (see Why might paging (sorting, grouping, filtering) not work in the ASPxGridView?).

If this doesn't help, send us a full ASPxGridView markup and code snippets illustrating how it bound to data, so we can perform more detail research.

Thanks,
Artem

Christopher Calleja Urry 10 years ago

At the moment, the GridView is always bound - inside the Page_Load however.

Artem (DevExpress Support) 10 years ago

Thanks for the clarification. Please change the binding logic as I suggested above and check if the issue persists.

Christopher Calleja Urry 10 years ago

Will do. Thank you.

Christopher Calleja Urry 10 years ago

Seems to be ok. No other reports of this happening.

Artem (DevExpress Support) 10 years ago

It's great to hear that the issue has been resolved. Should you have further questions, feel free to contact us.

Answers approved by DevExpress Support

Artem (DevExpress Support)

created 10 years ago

[DevExpress Support Team: this Answer was created based on the Owner's comment]

The issue occurs if the ASPxGridView is bound at runtime. I see that you're using ASPxComboBox with server-side events. It may force building ASPxGridView hierarchy earlier than the DataSource property is assigned (ASPxGridView isn't bound yet). Please make sure that the DataSource property is defined on each round trip to the server either in the Page.Init event handler or in the ASPxGridView.DataBinding event handler (see Why might paging (sorting, grouping, filtering) not work in the ASPxGridView?).

Show previous comments (5)

Christopher Calleja Urry 10 years ago

Hi there,
Issue seems to be happening to another column now - weirdly enough.
Attached aspx + code behind. Also exception stacktrace.
Any ideas?

ShopToShop...nsfers.rar

Anthony (DevExpress Support) 10 years ago

Hi Christopher,

We need more time to research this issue.

Nastya (DevExpress Support) 10 years ago

Hello Christopher,
The markup and code behind seem to be correct. I've created a simple project based on your markup, but the issue was not reproduced. Please refer to the attachment.
You can try to bind your ASPxGridLookup value to the "INUOMSysRef" field not through the markup, but using the lookup Init event handler as it's demonstrated in the The general technique of using the Init/Load event handler article. Let me know if this helps.
If the issue remains, I need to test the project in action to determine the cause of the exception. Please provide me with a runnable sample of your project.

T266763.zip

Christopher Calleja Urry 10 years ago

I'll have a look later.
Note: I've never been able to replicate this on my end. It's something that pops up at a client from time to time. (rarely)

Christopher Calleja Urry 10 years ago

Didn't quite understand what I have to do from that article?
Is the following ok?
  protected void ddlUom_OnInit(
           object sender,
           EventArgs e)
       {
           GridViewEditItemTemplateContainer container = ((ASPxGridLookup)sender).NamingContainer as GridViewEditItemTemplateContainer;
           if (!container.Grid.IsNewRowEditing)
           {
               ((ASPxGridLookup) sender).Value = DataBinder.Eval(
                   container.DataItem,
                   "INUOMSysRef");
           }
       }
   }
With that set, whenever I press 'Edit' on a row, 'INUOMSysRef' is always null in OnRowValidating/OnRowUpdating.

Nastya (DevExpress Support) 10 years ago

Hello Christopher,
The initial problem was that the exception occurred randomly. Now you are writing that the "INUOMSysRef" value is null in the RowValidating / RowUpdating events. Would you please describe the problem in detail? Is this a new issue or the same one?
As I mentioned earlier, the provided code and markup are insufficient for me to detect the cause of the problem. Please send me a working project, which I can test on my side and help you find a solution. Your cooperation is appreciated.
I'm looking forward to your reply

Christopher Calleja Urry 10 years ago

The null only happens after I implement the change I could understand from the article you linked. (i.e Moving the Binding to the OnInit method)
Without it, (as in production) I randomly get 1-2 exception reports randomly a week. For example, this week, I haven't - but most likely either luck or page hasn't been used much.
Even if I create a random project, I've never been able to replicate this on my own computer - so I'm not sure how much help that would serve.

Nastya (DevExpress Support) 10 years ago

The code snippet seemed to be fine, so I need to debug the code in order to understand the cause of the problem. The information I have currently is inadequate to provide you with a precise answer. You can send me a simplified runnable version of your project where the issue with binding the lookup is reproduced.
We guarantee that no part of your project will be disclosed, and all your files will be deleted from our disks when the conversion is successfully completed.
If you wish to sign an NDA with our company, please contact our CTO, Julian Bucknall (mailto:julianb@devexpress.com).)

Created: July 14, 2015 11:32 AM

Modified: August 21, 2015 3:40 PM

Platform: ASP.NET Web Forms

Product: ASPxGridView

Build: 14.2.6

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ASPxGridView - The " 'DevExpress.Web.Data.WebDataRow' does not contain a property with the name 'X' " exception is thrown in certain cases

Answers approved by DevExpress Support

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