Hi Mike,

I have an open case number for this - "CAS-40329-O7D41C".

You'll be able to see all the detail in there, but I am suggesting there is a problem with the cached graphics mechanism in the UltraExplorerBar control (which seems to be a univeral mechanism across infragistic controls, including the UltraGridExcelExporter). We are seeing the problem, specifically when an UltraExplorerBar group is selected.

internal void AnimateGroupSelection(UltraExplorerBarGroup newSelectedGroup)
(UltraExplorerBar.cs – Line 17485)

(DrawUtility.ReleaseCachedGraphics() is not being called within AnimateGroupSelection which I believe is causing the problem).

In our code, if we select the group .Selected = True we get the error in our main application. If we omit this, the problem goes away.

It took us 3 - 4 days (changeset by changeset in Team Foundation Server) to work this one out.

(I did by the way check the windows handles on a few of our servers where users run the application, and all looked normal. Handles did not go over 600 at any point in the day).

Kind regards,

Andrew

Hey Mike,

There is no certain scenario in which it is reproducing. Client was not doing anything with excel exporting etc at the time the error popped up.

And client is also using the same version of Infragistics as I am.

Please let me know if any workaround is available.

Thanks,

Kuldeep

Hi Mike,

Our application was using the old version of infragistics(8.0 version), now we have upgraded it to v13.1. We didn't redo all the form just updated with the new version of infragistics. Now and then the user are getting this.

System.Drawing.Graphics.GetHdc()

   at Infragistics.Win.UltraWinGrid.ExcelExport.UltraGridExcelExporter..ctor()

   at GLS.Framework.UI.BaseForm.InitializeComponent()

   at GLS.Framework.UI.BaseForm..ctor()

Also other items we are getting this error 

at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at System.Data.DataView.System.Collections.IList.get_Item(Int32 recordIndex)
   at Infragistics.Win.UltraWinGrid.RowsCollection.SyncRowsHelper(IList boundList)
   at Infragistics.Win.UltraWinGrid.RowsCollection.SyncRows()
   at Infragistics.Win.UltraWinGrid.RowsCollection.VerifyGroupByVersionHelper()
   at Infragistics.Win.UltraWinGrid.UltraGridRow.get_ParentRow()
   at Infragistics.Win.UltraWinGrid.UltraGridRow.get_BaseHeight()
   at Infragistics.Win.UltraWinGrid.UltraGridRow.get_HeightInsideRowBorders()
   at Infragistics.Win.UltraWinGrid.UltraGridRow.GetLevelHeight(Int32 level)
   at Infragistics.Win.UltraWinGrid.UltraGridColumn.AdjustForCellLevel(Rectangle& rect, UltraGridRow Row)
   at Infragistics.Win.UltraWinGrid.RowCellAreaUIElementBase.AddElementHelper(UIElementsCollection oldList, Type type, Rectangle rcElement, Rectangle rcClip, UltraGridRow row, UltraGridColumn column, Boolean& sameRow, Boolean activeRowStatusChanged, Boolean rowLayoutMode)

   at Infragistics.Win.UltraWinGrid.RowCellAreaUIElementBase.PositionChildElements()
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UltraWinGrid.RowColRegionIntersectionUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)

   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UltraWinGrid.UltraGridUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)

   at Infragistics.Win.UIElement.VerifyChildElements(Boolean recursive)
   at Infragistics.Win.ControlUIElementBase.VerifyIfElementsChanged(Boolean verify, Boolean syncMouseEntered)
   at Infragistics.Win.ControlUIElementBase.ProcessMouseMoveHelper(Object sender, MouseEventArgs e)
   at Infragistics.Win.ControlUIElementBase.ProcessMouseMove(Object sender, MouseEventArgs e)
   at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)
   at Infragistics.Win.UltraControlBase.OnMouseMove(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseMove(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Any help or suggestions will be really helpful.

Hi Ranee,

There's not much we can do about an issue like this unless we can reproduce it.

Again, even though you updated to the latest version, it still might be that this is an issue that was fixed in the service release, so I would recommend getting the Service Release for 13.1 and see if that helps.

The second exception you listed here could be caused by a threading issue. Is your application creating any background threads?

Beyond that... is it possible for you to post a small sample project here that reproduces the exception so we could check it out?

Where can I get the service Release for 13.1.

Yes, my application use background threads. but we didn't have this issue with the earlier version of infragistics but just this release.

That Exception is very vague and can occur for any number of reasons. Have you tried getting the latest service release?

If that doesn't help, can you reproduce the issue in a small sample project and post it here so we can check it out?

Hi,

We are using Infragistics 14.1 WinForms and we are getting this error from production as well.

is there any solution to this?

Details:

Inner Exception:

Parameter is not valid.

   at System.Drawing.Graphics.GetHdc()

   at Infragistics.Win.UltraWinGrid.ExcelExport.UltraGridExcelExporter..ctor()

   at Infragistics.Win.UltraWinGrid.ExcelExport.UltraGridExcelExporter..ctor(IContainer container)

its  also  happened with  me  in this  version  13.1.20131.2124 not  in  exporting  just  in  initializing  in this  generated  code  

 Me.UltraGridExcelExporter1 = New Infragistics.Win.UltraWinGrid.ExcelExport.UltraGridExcelExporter(Me.components)