public void AddProduct(Product product)
 {
     using(var context = new ECommerceDbDataContext(_conStr))
     {
         context.Products.InsertOnSubmit(product);
         context.SubmitChanges();
     }
 }
		private void detach_Products(Product entity)
		{
			this.SendPropertyChanging();
			entity.Category = null;
		}
		private void attach_Products(Product entity)
		{
			this.SendPropertyChanging();
			entity.Category = this;
		}
 partial void DeleteProduct(Product instance);
 partial void UpdateProduct(Product instance);
 partial void InsertProduct(Product instance);