Silverlight DomainDataSource和FilterDescriptor（从服务器加载整个查询，然后在客户端进行过滤？）

我需要知道添加了filterdescriptors的DomainDataSource是否会首先从客户端加载所有数据，然后在客户端上进行筛选，或者筛选器描述符是否会导致DomainDataSource创建一个添加了筛选器的查询（.Where（e=>..），然后从服务器加载该查询

<riaControls:DomainDataSource AutoLoad="True" d:DesignData="{d:DesignInstance my1:NursingHomeDetail, CreateList=true}" Height="0" LoadedData="nursingHomeSummaryDomainDataSource_LoadedData" Name="nursingHomeDomainDataSourceByPin" QueryName="GetNursingHomeQuery" >
    <riaControls:DomainDataSource.DomainContext>
        <my:NursingHomeContext />
    </riaControls:DomainDataSource.DomainContext>
    <riaControls:DomainDataSource.QueryParameters>
        <riaControls:Parameter ParameterName="pin" Value="{Binding ElementName=pinComboBox, Path=SelectedValue}" />
    </riaControls:DomainDataSource.QueryParameters>
</riaControls:DomainDataSource>

换句话说，这两者之间有区别吗：

<riaControls:DomainDataSource AutoLoad="True" d:DesignData="{d:DesignInstance my1:NursingHomeDetail, CreateList=true}" Height="0" LoadedData="nursingHomeSummaryDomainDataSource_LoadedData" Name="nursingHomeDomainDataSourceByPin" QueryName="GetNursingHomeQuery" >
    <riaControls:DomainDataSource.DomainContext>
        <my:NursingHomeContext />
    </riaControls:DomainDataSource.DomainContext>
    <riaControls:DomainDataSource.QueryParameters>
        <riaControls:Parameter ParameterName="pin" Value="{Binding ElementName=pinComboBox, Path=SelectedValue}" />
    </riaControls:DomainDataSource.QueryParameters>
</riaControls:DomainDataSource>

<riaControls:DomainDataSource AutoLoad="True" d:DesignData="{d:DesignInstance my1:NursingHomeDetail, CreateList=true}" Height="0" LoadedData="nursingHomeSummaryDomainDataSource_LoadedData" Name="nursingHomeDomainDataSourceByPin" QueryName="GetNursingHomeQuery" >
    <riaControls:DomainDataSource.DomainContext>
        <my:NursingHomeContext />
    </riaControls:DomainDataSource.DomainContext>
    <riaControls:DomainDataSource.QueryParameters>
        <riaControls:Parameter ParameterName="pin" Value="{Binding ElementName=pinComboBox, Path=SelectedValue}" />
    </riaControls:DomainDataSource.QueryParameters>
</riaControls:DomainDataSource>

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它发生在服务器端。过滤器更改DomainDataSource查询客户端，该客户端被序列化到服务器端执行

<riaControls:DomainDataSource AutoLoad="True" d:DesignData="{d:DesignInstance my1:NursingHomeDetail, CreateList=true}" Height="0" LoadedData="nursingHomeSummaryDomainDataSource_LoadedData" Name="nursingHomeDomainDataSourceByPin" QueryName="GetNursingHomeQuery" >
    <riaControls:DomainDataSource.DomainContext>
        <my:NursingHomeContext />
    </riaControls:DomainDataSource.DomainContext>
    <riaControls:DomainDataSource.QueryParameters>
        <riaControls:Parameter ParameterName="pin" Value="{Binding ElementName=pinComboBox, Path=SelectedValue}" />
    </riaControls:DomainDataSource.QueryParameters>
</riaControls:DomainDataSource>