如何从控件数据源获取对象上下文

Question

I'm new in C# and Entity Framework. Is there a way to get back the ObjectContext from control datasource ?

I have three project , two for entity framework and the last one for window form application. The winform have two datagridview which each one from each EF project.

The issue are when I want to savechanges for datagridview A, I have to call MyEF_A.SaveChanges() and when I want to save datagridview B, I have to call MyEF_B.SaveChanges() .

Is there a solution, so I can call SaveChanges() method base on Form.ActiveControl (datagridview A or datagridview B) tracing back from the control.datasource to ObjectContext ?

Answer 1

I'm afraid not. The problem is that DataSource is of a type "object". Even though you could cast it to its original type, you never use ObjectContext itself as a binding object, so you would get just the collection.

I may be wrong though, please correct me someone if that's the case here.