Silverlight dataGrid 与 ria 服务的绑定不起作用

Question

i'm new to Silverlight and it's totally driving me crazy!

i'm using SL4 and trying to bind datagrid with a Domain Service Query:

what i did exactly is i generate an ado.net entity model from my database, then create a domain Service class from this model.

then in my page i put Datagrid & button.

in the click event for this button i write this code:

RRDomainContext rr = new RRDomainContext();
this.dataGrid1.ItemsSource = rr.Rooms;
this.rr.Load(this.rr.GetRoomsQuery());

when this method executed the nothing changed at the datagrid.

can anyone help me with this ?

Answer 1

Silverlight is async only, so if the query is a large one it can either take a long time to return, or if it's a large query that goes over the 64k limit it can fail and you don't know about it.

As a thought, if you're using RIA services to bind to something reasonably simple, use the "Data Source" for the entity, it's a lot less likely to give issues.

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