Remove selected items in DataGridView (and DB)

Question

Hi,

I have a DataGridView connected to a Database. It is filled like this:

 Me.KeywordsTableAdapter.Fill(Me.DbDataSet1.keywords)

I can see all the data inside DataGridView. Now I can select something and if I press on DELETE (Keyboard) the entries are gone (AllowUserToDeleteRows = true), but they are still in the Database (mdb file)

Do I have to refresh something somewhere in order to write the changes to the database? Or do I have to do all this stuff manually?

I tried to use KeywordsBindingSource1.EndEdit() - but it is not working.

any Ideas? thanks!