private void BuildGridView()
{
DataGridViewComboBoxColumn productColumn = new DataGridViewComboBoxColumn();
productColumn.DisplayIndex = 0;
productColumn.Width = 200;
productColumn.DataPropertyName = "ProductID";
productColumn.DataSource = Product.All();
productColumn.DisplayMember = "ProductName";
productColumn.HeaderText = "Product Name";
productColumn.Name = "ProductNameColumn";
productColumn.ValueMember = "ProductID";
gvOrderDetails.Columns.Insert(0, productColumn);
gvOrderDetails.CellValueChanged += new DataGridViewCellEventHandler(gvOrderDetails_CellValueChanged);
gvOrderDetails.DataSource = OrderDetail.BuildDataTable();
}
