Binding Descriptor and Infragistics.
Printed From: IdeaBlade
Category: DevForce
Forum Name: DevForce Classic
Forum Discription: For .NET 2.0
URL: http://www.ideablade.com/forum/forum_posts.asp?TID=615
Printed Date: 11-Jun-2026 at 10:49am
Topic: Binding Descriptor and Infragistics.
Posted By: banzaii
Subject: Binding Descriptor and Infragistics.
Date Posted: 14-Dec-2007 at 5:12pm
Am Using Infragistics grid, I add binding descriptors to the grid.
When I use the group by option of that Grid, it throws exception. It works fine If either I dont use descriptors or not register that particular column as descriptor to the grid and group by it programmitcally.
Any suggestions?
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Replies:
Posted By: banzaii
Date Posted: 14-Dec-2007 at 5:12pm
Posted By: banzaii
Date Posted: 17-Dec-2007 at 8:06am
My Infragistics Grid has few columns binded using UltraGridBindingDescriptorTypeConverter.
When I use the Groupby option using either drag and drop or
programmitcally using SortedColumns.Add ... it throws an Infragistics
Exception.
Error in custom data filter: Convert(...) throws an exception. Inner
exception is: Object reference not set to an instance of an object.
Exception(DataFilterException): Source="Infragistics2.Win.v7.2"; Target=null; Tag=null;
Message = "Error in custom data filter: Convert(...) throws an
exception. Inner exception is: Object reference not set to an instance
of an object."
InnerException(NullReferenceException): Source="Infragistics2.Win.UltraWinGrid.v7.2"; Target=null; Tag=null;
Message = "Object reference not set to an instance of an object."
StackTrace =
" at Infragistics.Win.UltraWinGrid.EmbeddableEditorOwnerInfo.GetExternalContext(Object ownerContext)
at Infragistics.Win.EditorDataFilterConvertArgs.get_Context()
at IdeaBlade.UI.WinForms.InfragisticsControls.UltraDataFilter.Convert(EditorDataFilterConvertArgs pConvertArgs)
at
Infragistics.Win.EmbeddableEditorBase.UpdateDataFilterCache(ConversionDirection
direction, Object sourceVal, Type destinationType,
Can you Help? I saw this group by thing working,
either in previous version of Ideablade or the same. I recently updated
to Ideablade 3.5.5.1,
Infragistics v7.2. is what I am using.
Thanx :).
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Posted By: banzaii
Date Posted: 17-Dec-2007 at 11:56am
Simple IdeaBlade sample Application.
I used an UltraGridBindingManager, Added 4 Columns, "Name, "Last Name", "Country", "Race".
Set the UltraGridSource and run, showed me a few rows, I dragged Race column to the group by region, same exception.
Then I removed the "Race" column from GridBindingManager and added it using SortedColumns.Add(....) .. worked fine.
The thing I understand is it produces exception if the column is present in UltraGridManager, and in case of dragging its always present.
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Posted By: banzaii
Date Posted: 07-Jan-2008 at 4:10am
This bug is fixed in IdeaBlade 3.6.0.2..
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