protected void Page_Load(object sender, EventArgs e) { var productSubCategoryId = Request.QueryString["ProductSubCategoryId"]; int id; //if (!int.TryParse(productSubCategoryId, out id)) { throw new ApplicationException("ID wasn't an integer."); } var connString = WebConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString; // Unsafe string concat var sqlString = "SELECT * FROM Product WHERE ProductSubCategoryID = " + productSubCategoryId; using (var conn = new SqlConnection(connString)) { using (var command = new SqlCommand(sqlString, conn)) { command.Connection.Open(); ProductGridView.DataSource = command.ExecuteReader(); ProductGridView.DataBind(); } } /*//Paramatarised input * var sqlString = "SELECT * FROM Product WHERE ProductSubCategoryID = @ProductSubCategoryId"; * using (var conn = new SqlConnection(connString)) * { * using (var command = new SqlCommand(sqlString, conn)) * { * command.Parameters.Add("@ProductSubcategoryId", SqlDbType.VarChar).Value = productSubCategoryId; * command.Connection.Open(); * ProductGridView.DataSource = command.ExecuteReader(); * ProductGridView.DataBind(); * } * }*/ /*//Stored procedure input * var sqlString = "GetProducts"; * using (var conn = new SqlConnection(connString)) * { * using (var command = new SqlCommand(sqlString, conn)) * { * command.CommandType = CommandType.StoredProcedure; * command.Parameters.Add("@ProductSubcategoryId", SqlDbType.VarChar).Value = productSubCategoryId; * //command.Parameters.Add("@ProductSubcategoryId", SqlDbType.Int).Value = id; * command.Connection.Open(); * ProductGridView.DataSource = command.ExecuteReader(); * ProductGridView.DataBind(); * } * }*/ var dc = new InjectionEntities(); /*ProductGridView.DataSource = dc.Products.Where(p => p.ProductSubcategoryID == id).ToList(); * //ProductGridView.DataSource = dc.Products.Where(p => p.ProductSubcategoryID == productSubCategoryId).ToList(); * ProductGridView.DataBind();*/ ProductCount.Text = ProductGridView.Rows.Count.ToString("n0"); }
protected void Page_Load(object sender, EventArgs e) { var productSubCategoryId = Request.QueryString["ProductSubCategoryId"]; int id; if (!int.TryParse(productSubCategoryId, out id)) { throw new ApplicationException("ID wasn't an integer"); } var dc = new InjectionEntities(); ProductGridView.DataSource = dc.Products.Where(p => p.ProductSubcategoryID == id).ToList(); ProductGridView.DataBind(); ProductCount.Text = ProductGridView.Rows.Count.ToString("n0"); }