FilterExpressions with no records

[Jorge]

I have RadViewList bound to an ObjectDataSource. If the data source returns no records, filter expressions fail to apply (instead of showing "No data" (EmptyDataTemplate)).

Is this a bug? If not, this is annoying because when I call Rebind() I have to clear all filters, rebind, check (items.count > 0), and the reapply filters.

Thanks!

[Rosen]

Hello Jorge,

I'm afraid that I am unable to observe such behavior, neither using RadFilter nor directly using RadListView filtering API. Please check the attached sample, maybe I'm missing something obvious.

Kind regards,
Rosen
the Telerik team

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[Jorge]

The ObjectDataSource is connected to a Dataset as it is retrieving SQL data. I filter with the following code

            lvRegistros.FilterExpressions.BuildExpression().EqualTo("estado_actual", 1).Build();

where "estado_actual" is a database field (This field must be listed in the DataKeyNames).
If no records are retrieved, I get

Invalid property or field - 'estado_actual' for type: Object
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: Invalid property or field - 'estado_actual' for type: Object

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentException: Invalid property or field - 'estado_actual' for type: Object]
   Telerik.Web.Data.Expressions.MemberAccessTokenExtensions.CreateMemberAccessExpression(IMemberAccessToken token, Expression instance) +167
   Telerik.Web.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName) +122
   Telerik.Web.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName, Boolean liftMemberAccessToNull) +42
   Telerik.Web.Data.Expressions.PropertyAccessExpressionBuilder.CreateMemberAccessExpressionOverride() +83
   Telerik.Web.Data.Expressions.MemberAccessExpressionBuilderBase.CreateMemberAccessExpression() +80
   Telerik.Web.Data.Expressions.FilterDescriptorExpressionBuilder.CreateMemberExpression() +228
   Telerik.Web.Data.Expressions.FilterDescriptorExpressionBuilder.CreateBodyExpression() +61

Thanks!

[Rosen]

Hello Jorge,

Indeed I was able to recreate the error you are getting. However I'm happy to inform you that it was addressed and the fix will be included with the next internal build (available for download next Tuesday). Meanwhile I have updated your telerik point for bringing this to our attention.

Sincerely yours,
Rosen
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.