c# - Silverlight DataGrid duplicate error messages for objects using both DataAnnotations and INotifyDataErrorInfo -

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my entity objects use dataannotations attributes validation, validation work silverlight controls , not datagrid, implemented inotifydataerrorinfo. produces duplicate validation errors text in datagrid (it shows error both dataannotations , inotifydataerrorinfo). how can fix this?

my modelbase class: http://pastebin.com/sewggvuc

here a link blog post can you.

author describes how combine inotifydataerrorinfo , dataannotations @ end of post.

if nothing changes - add code of entity class question.


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