[Solved] Q2 Gridview Linq error

[Jonathan Miller]

Hey guys, any ideas on this - after upgrading GridView to Q2, getting this in code behind:

From this:   radGridView.ItemsSource = e.Result;

Getting this: No method 'Sum' on type 'System.Linq.Enumerable' is compatible with the supplied arguments.

Here are the items from XAML:

<telerikdata:SumFunction FunctionName="TotalPaid" SourceField="PaidAmount" Caption="PayAmount:" ResultFormatString="{}{0:c}"/>

                                <telerikdata:SumFunction FunctionName="TotalWeight" SourceField="Weight" Caption="TotWeight:" ResultFormatString="{}{0:0.00}" />

[Vlad]

Hi Jonathan,

How the grid is bound in your case? Please provide a bit more info about your collection of business objects.

Sincerely yours,
Vlad
the Telerik team

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[Jonathan Miller]

Hi,

The binding object is an ObservableCollection from a WebService via the Interface listed below:

(only partial code listed)

public class DetailsReport

{

    [DataMember]

    public string PaidAmount;

    [DataMember]

    public string Weight;

}

[Vlad]

Hello Jonathan,

PaidAmount property is string - you cannot execute Sum on string.

Regards,
Vlad
the Telerik team

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[Jonathan Miller]

Thanks.  At one point we had as a string (can't remember the reason why) and it worked with Q1 release using data formatting.  We'll convert to decimal and see if it resolves. Thanks for the reply