Data binding 绑定到主datacontext,而不是行的

Data binding 绑定到主datacontext,而不是行的,data-binding,silverlight-4.0,mvvm-light,Data Binding,Silverlight 4.0,Mvvm Light,我想将列的itemsource绑定到xaml的主datacontext 在我这样做之前: <telerik:GridViewComboBoxColumn Header="Type" DataMemberBinding="{Binding VehicleCondition}" ItemsSourceBinding="{Binding VehicleConditions,Source={StaticResource ShowroomLog}}" /> 不,它找不到我的车辆条件,但我不

我想将列的itemsource绑定到xaml的主datacontext

在我这样做之前:

<telerik:GridViewComboBoxColumn Header="Type" DataMemberBinding="{Binding VehicleCondition}" ItemsSourceBinding="{Binding VehicleConditions,Source={StaticResource ShowroomLog}}"  />
不,它找不到我的车辆条件,但我不知道如何更改此代码以使其正确

我怎么做id?

我是用

"{Binding Source={StaticResource Locator}, Path=ShowroomLog.Handlers}"
"{Binding Source={StaticResource Locator}, Path=ShowroomLog.Handlers}"