How to make two way-databinding using EF in winforms?

Question

I am very new at coding. Now I am going to tell you about my current situation and where I wanna go. Hope you will help.

I am using EF5.0 database first approach and

Answer 1

If you bind to query result you are using only one-way data binding. You need to have IBindingList to get two way data binding. Try this:

 ctx.Kolons.Load();
 dataGridView1.DataSource = ctx.Kolons.Local.ToBindingList();

If it doesn't work try to use BindingSource:

 ctx.Kolons.Load();
 gridBindingSource.DataSource = ctx.Kolons.Local.ToBindingList();
 dataGridView1.DataSource = gridSource;