Hi
I try to use a SumFunction in a GroupDescriptor in the following way
but I get this error-
No method 'Sum' on type 'System.Linq.Enumerable' is compatible with the supplied arguments.
I try to use a SumFunction in a GroupDescriptor in the following way
| <telerik:RadGridView.GroupDescriptors> |
| <telerik:GroupDescriptor Member="AccountName" SortDirection="Ascending"> |
| <telerik:GroupDescriptor.AggregateFunctions> |
| <telerik:SumFunction SourceField="ActivityBudget" Caption="Invoices count:" /> |
| </telerik:GroupDescriptor.AggregateFunctions> |
| </telerik:GroupDescriptor> |
| </telerik:RadGridView.GroupDescriptors> |
but I get this error-
No method 'Sum' on type 'System.Linq.Enumerable' is compatible with the supplied arguments.
5 Answers, 1 is accepted
0
Hi Orit,
Generally such error can happen if ActivityBudget is not numeric. Can you post a bit more info about your case?
Regards,
Vlad
the Telerik team
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Generally such error can happen if ActivityBudget is not numeric. Can you post a bit more info about your case?
Regards,
Vlad
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.
0
Orit
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answered on 29 Jul 2009, 06:53 AM
The field is "float"
can this be the problem?
can this be the problem?
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Orit
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answered on 02 Aug 2009, 07:21 AM
Same problem in
GridViewDataColumn.AggregateFunctions
when I try to use
SumFunction
0
Orit
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answered on 02 Aug 2009, 11:06 AM
whenever I make any change in the GroupDescriptors
The Visual Studio "fly" (is closed)
another thing is that if I put a GroupDescriptors
in my xaml I get an error in the Designer
and canot see the design of my xaml
The Visual Studio "fly" (is closed)
another thing is that if I put a GroupDescriptors
in my xaml I get an error in the Designer
and canot see the design of my xaml
This is the error-
Invalid property or field - 'FieldName' for type: Customer
0
Hello Orit,
I have tried to replicate you problem with float grouping, but everything works fine on my end. I'm sending you my project so that you can verify it locally on your PC.
The problems with designer is that we generate a set of sample data - list of Customers. In this case when you add a new group descriptor (in design time) its member property should be equal to a property of the Customer type. However If you bind your grid declaratively (via ObjectDataProvider) Visual Studio will correctly bind the ItemsSource property and everything will work as expected. I have done just this in the sample project I'm sending you.
Hope this helps.
Regards,
Stefan Dobrev
the Telerik team
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I have tried to replicate you problem with float grouping, but everything works fine on my end. I'm sending you my project so that you can verify it locally on your PC.
The problems with designer is that we generate a set of sample data - list of Customers. In this case when you add a new group descriptor (in design time) its member property should be equal to a property of the Customer type. However If you bind your grid declaratively (via ObjectDataProvider) Visual Studio will correctly bind the ItemsSource property and everything will work as expected. I have done just this in the sample project I'm sending you.
Hope this helps.
Regards,
Stefan Dobrev
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.