Bug Report T373278

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Urgent Duplicate

The type of a value returned by an XPView's property might be different than the property type if the property expression contains the AggregateOperand

SR SR

Stefan Ragnarsson Stefan Ragnarsson

created 9 years ago (modified 9 years ago)

[DevExpress Support Team: CLONED FROM T371645: An exception is thrown when a summary is being calculated]
If the expression assigned to the ViewProperty.Property property contains the AggregateOperand with the Avg aggregate type and the AggregatedExpression references a property of the Single type, the ViewProperty type is determined as Decimal. Attached is a test project reproducing the issue.

Steps to reproduce:
Run the attached project and notice the alert message that appears when the Form is loaded. Close the alert message using the "Ignore" button and add a summary item to the TestProperty column.

Actual results:
The InvalidCast exception with the "Specified cast is not valid" message is raised with the following call stack:

>   DevExpress.Data.v15.2.dll!DevExpress.Data.Helpers.GenericDelegateHelper.UnboxingConversionCreator.Impl<float?>.Unbox(object arg) Line 394 + 0x17 bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.Helpers.GenericDelegateHelper.InvalidCastVerboseLogger.Impl<object,float?>.LoggedCast(System.Func<object,float?> nakedCast, object arg, System.Func<string[]> exceptionAuxInfoGetter) Line 244 + 0x24 bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.Helpers.GenericDelegateHelper.InvalidCastVerboseLogger.Impl<object,float?>.CreateLoggedCast.AnonymousMethod__8(object a) Line 236 + 0x6b bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.Helpers.GenericDelegateHelper.ChainApplier.Impl<int,object,float?>.ApplyChain.AnonymousMethod__d(int a) Line 211 + 0x49 bytes   C#
    System.Core.dll!System.Linq.Enumerable.CombineSelectors<int,int,float?>.AnonymousMethod__0(int x) + 0x81 bytes
    System.Core.dll!System.Linq.Enumerable.CombineSelectors<int,float?,float?>.AnonymousMethod__0(int x) + 0x64 bytes
    System.Core.dll!System.Linq.Enumerable.CombineSelectors<int,float?,float?>.AnonymousMethod__0(int x) + 0x64 bytes
    System.Core.dll!System.Linq.Enumerable.WhereSelectEnumerableIterator<int,float?>.MoveNext() + 0x11f bytes
    System.Core.dll!System.Linq.Enumerable.Average(System.Collections.Generic.IEnumerable<float?> source) + 0x147 bytes
    DevExpress.Data.v15.2.dll!DevExpress.Data.Helpers.SummaryValueExpressiveCalculator.DoTypedAverage(System.Collections.IEnumerable valuesEnumerable, System.Type valuesType, System.Func<string[]> exceptionAuxInfoGetter) Line 133 + 0xad bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.Helpers.SummaryValueExpressiveCalculator.Calculate(DevExpress.Data.SummaryItemType summaryItemType, System.Collections.IEnumerable valuesEnumerable, System.Type valuesType, bool ignoreNulls, System.Collections.IComparer customComparer, System.Func<string[]> exceptionAuxInfoGetter) Line 71 + 0x11 bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.DataController.CalcSummaryValue(DevExpress.Data.SummaryItem summaryItem, DevExpress.Data.SummaryItemType summaryType, bool ignoreNullValues, System.Type valueType, System.Collections.IEnumerable valuesEnumerable, System.Func<string[]> exceptionAuxInfoGetter, DevExpress.Data.GroupRowInfo groupRow) Line 312 + 0x6d bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.DataController.CalcSummaryValue(DevExpress.Data.SummaryItem summaryItem, DevExpress.Data.GroupRowInfo groupRow) Line 307 + 0x95 bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.DataController.CalcSummaryInfo(DevExpress.Data.GroupRowInfo groupRow, DevExpress.Data.SummaryItem summaryItem, ref bool validResult) Line 244 + 0x1d bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.DataController.CalcTotalSummaryItem(DevExpress.Data.SummaryItem summary) Line 323 + 0x27 bytes   C#
    DevExpress.Data.v15.2.dll!DevExpress.Data.DataController.UpdateTotalSummary(System.Collections.Generic.List<DevExpress.Data.SummaryItem> changedItems) Line 3006 + 0x59 bytes   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.Views.Grid.GridView.SynchronizeSummary() Line 10124   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.Views.Grid.GridView.OnSummaryCollectionChanged(object sender, System.ComponentModel.CollectionChangeEventArgs e) Line 7498   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.Views.Grid.GridView.OnColumnSummaryCollectionChanged(DevExpress.XtraGrid.Columns.GridColumn column, System.ComponentModel.CollectionChangeEventArgs e) Line 6827 + 0x6b bytes   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.Columns.GridColumn.Summary_CollectionChanged(object sender, System.ComponentModel.CollectionChangeEventArgs e) Line 750   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.GridSummaryItemCollection.OnItemChanged(System.ComponentModel.CollectionChangeEventArgs e) Line 137 + 0x35 bytes   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.GridSummaryItem.OnChanged() Line 165   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.GridSummaryItem.SetSummary(DevExpress.Data.SummaryItemType summaryType, string displayFormat, System.IFormatProvider format) Line 212 + 0x45 bytes   C#
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.Menu.GridViewFooterMenu.OnMenuItemClick(object sender, System.EventArgs e) Line 283   C#
    DevExpress.Utils.v15.2.dll!DevExpress.Utils.Menu.DXMenuItem.OnClick() + 0x5b bytes
    DevExpress.Utils.v15.2.dll!DevExpress.Utils.Menu.DXMenuCheckItem.OnClick() + 0x5c bytes
    DevExpress.Utils.v15.2.dll!DevExpress.Utils.Menu.DXMenuItem.GenerateClickEvent() + 0x34 bytes
    DevExpress.Utils.v15.2.dll!DevExpress.Utils.Menu.DXPopupStandardMenu.OnStandardMenuClick(object sender, System.EventArgs e) + 0xa3 bytes
    System.Windows.Forms.dll!System.Windows.Forms.MenuItem.OnClick(System.EventArgs e) + 0x14c bytes
    System.Windows.Forms.dll!System.Windows.Forms.MenuItem.MenuItemData.Execute() + 0x59 bytes
    System.Windows.Forms.dll!System.Windows.Forms.Command.Invoke() + 0x8f bytes
    System.Windows.Forms.dll!System.Windows.Forms.Command.DispatchID(int id) + 0x6f bytes
    System.Windows.Forms.dll!System.Windows.Forms.Control.WmCommand(ref System.Windows.Forms.Message m) + 0x74 bytes
    System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m) + 0x4c8 bytes
    DevExpress.XtraEditors.v15.2.dll!DevExpress.XtraEditors.Container.EditorContainer.WndProc(ref System.Windows.Forms.Message m) + 0x231 bytes
    DevExpress.XtraGrid.v15.2.dll!DevExpress.XtraGrid.GridControl.WndProc(ref System.Windows.Forms.Message m) Line 2968   C#
    System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.OnMessage(ref System.Windows.Forms.Message m) + 0x51 bytes
    System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.WndProc(ref System.Windows.Forms.Message m) + 0x156 bytes
    System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.DebuggableCallback(System.IntPtr hWnd, int msg, System.IntPtr wparam, System.IntPtr lparam) + 0x10d bytes
    [Native to Managed Transition]
    [Managed to Native Transition]
    System.Windows.Forms.dll!System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(System.IntPtr dwComponentID, int reason, int pvLoopData) + 0x59e bytes
    System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(int reason, System.Windows.Forms.ApplicationContext context) + 0x66e bytes
    System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoop(int reason, System.Windows.Forms.ApplicationContext context) + 0x76 bytes
    System.Windows.Forms.dll!System.Windows.Forms.Application.Run(System.Windows.Forms.Form mainForm) + 0x69 bytes
    DxSample.exe!DxSample.Program.Main() Line 28 + 0x25 bytes   C#

Expected results:
The property type should match the value type and no exceptions should be raised when adding a summary item to the GridView column.

T371645.zip

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Answers approved by DevExpress Support

DevExpress Support Team DevExpress Support Team

created 9 years ago (modified 9 years ago)

We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

Show previous comments (8) Comments (11)

SR SR

Private Stefan Ragnarsson Private Stefan Ragnarsson 9 years ago

Hi !

When can we expect to get the patch for this one on version of 15.2.11 ?

/Stefan

Private DevExpress Support Team Private DevExpress Support Team 9 years ago

Hi Stefan,

This fix will be included into the next maintenance update (version 15.2.10). The release date is not yet established. If everything goes according to plan, the next update is expected at the end of this month or in early June.

Note: if you need to fix this issue urgently, you can request a hotfix. There is a corresponding link available on this page in the right-side pane. The hotfix can be provided in a few days.

SR SR

Private Stefan Ragnarsson Private Stefan Ragnarsson 9 years ago

Hi !

Then we count on this update to be available in the end of this month. It's an extra cost for us to go for the hotfix due to it will require two installations from our current version 15.2.7 plus the 15.2.10 when it comes. It's an important update because without this fix we cannot release this to our customers.

/Stefan

Private DevExpress Support Team Private DevExpress Support Team 9 years ago

Hi Stefan,

Currently, there are no reasons to postpone the release date to the next month. If we do not face any issues, the next maintenance update might be released in a few days. Still, we cannot provide an exact release date.

By the way, since you did not provide a sample project demonstrating the incorrect behavior, we would greatly appreciate it if you check whether or not the error mentioned in the T371645 ticket can be reproduced in your application with the hotfix. Although the issue that we fixed in the context of this thread is the main cause of the error that you described, there is still a little probability that the original issue might depend on different circumstances and our changes will not resolve it completely. In this situation, we will continue our research to understand the actual cause of the error and help you find a solution.

SR SR

Private Stefan Ragnarsson Private Stefan Ragnarsson 9 years ago

Hi !

I have verified that the hotfix solves our problem so we are just now waiting for the update patch 15.2.10.

/Stefan

Private DevExpress Support Team Private DevExpress Support Team 9 years ago

Thank you for the confirmation, Stefan!

SR SR

Private Stefan Ragnarsson Private Stefan Ragnarsson 9 years ago

Hi again !

Do you know the status of the patch ?
We need to know when we can expect it to come so that we can plan test.

/Stefan

Private DevExpress Support Team Private DevExpress Support Team 9 years ago

Hi Stefan,

For technical reasons, the release date of the next maintenance update was postponed for the next week.

SR SR

Private Stefan Ragnarsson Private Stefan Ragnarsson 9 years ago

Then we hope that it comes in the beginning of this week rather than in the end. If it comes later than Thursday then our time plan is gone.

/Stefan

SR SR

Private Stefan Ragnarsson Private Stefan Ragnarsson 9 years ago

Hi !
Can you please update me on the status of the patch ?!

/Stefan

Private DevExpress Support Team Private DevExpress Support Team 9 years ago

Hi Stefan,

The maintenance update has recently been published and is avaiable to download. The corresponding announcement will be delivered shortly.

Created: April 25, 2016 3:12 PM

Modified: June 2, 2016 7:57 AM

Platform: App Frameworks (UI, API, ORM)

Product: XPO (.NET ORM Library)

Build: 15.2.7

IDE: Microsoft Visual Studio 2015

Reproduced: True

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The type of a value returned by an XPView's property might be different than the property type if the property expression contains the AggregateOperand

Answers approved by DevExpress Support

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