Npgsql.NpgsqlCommandBuilder.SetRowUpdatingHandler C# (CSharp) Method

        protected override void SetRowUpdatingHandler(DbDataAdapter adapter)
        {
            var npgsqlAdapter = adapter as NpgsqlDataAdapter;
            if (npgsqlAdapter == null)
                throw new ArgumentException("adapter needs to be a NpgsqlDataAdapter", nameof(adapter));

            // Being called twice for the same adapter means unregister
            if (adapter == DataAdapter)
                npgsqlAdapter.RowUpdating -= RowUpdatingHandler;
            else
                npgsqlAdapter.RowUpdating += RowUpdatingHandler;
        }