Silverlight Get Records Problem

I am usinq MySqlServer Domain Service and ADO.NET Entity Model for Silverlight Database works.

When I get the records from DataBase my grid get the columns name but there is n开发者_运维问答o row no data. Sometimes my grid is invisible after I give ItemSource

this is my codes.

var q=DomainService.getItemQuery();
LoadOperation<TypeOfItem> c = Sk.Load<TypeOfItem>(q);
datagrid.ItemSource=c.Entities;

What Can I do? i try get the 500

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Have you checked that your LoadOperation is completing without errors? I.E. is c.Entities null?