【IT168技术文档】
<%@ Import Namespace="System.Data" %> <html> <script language="C#" runat="server"> DataTable Cart; DataView CartView; ICollection CreateDataSource() { DataTable dt = new DataTable(); DataRow dr; dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32))); dt.Columns.Add(new DataColumn("StringValue", typeof(string))); dt.Columns.Add(new DataColumn("DateTimeValue", typeof(DateTime))); dt.Columns.Add(new DataColumn("BoolValue", typeof(bool))); dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double))); for (int i = 0; i < 9; i++) { dr = dt.NewRow(); dr[0] = i; dr[1] = "Item " + i.ToString(); dr[2] = DateTime.Now; dr[3] = (i % 2 != 0) ? true : false; dr[4] = 1.23 * (i+1); dt.Rows.Add(dr); } DataView dv = new DataView(dt); return dv; } void Page_Load(Object sender, EventArgs e) { if (Session["DG5_ShoppingCart"] == null) { Cart = new DataTable(); Cart.Columns.Add(new DataColumn("Item", typeof(string))); Cart.Columns.Add(new DataColumn("Price", typeof(string))); Session["DG5_ShoppingCart"] = Cart; } else { Cart = (DataTable)Session["DG5_ShoppingCart"]; } CartView = new DataView(Cart); ShoppingCart.DataSource = CartView; CartView.Sort="Item"; ShoppingCart.DataBind(); MyDataGrid.DataSource = CreateDataSource(); MyDataGrid.DataBind(); } void Grid_CartCommand(object sender, DataGridCommandEventArgs e) { DataRow dr = Cart.NewRow(); // e.Item is the row of the table where the command fired // For bound columns the value is stored in the Text property of TableCell TableCell itemCell = e.Item.Cells[1]; TableCell priceCell = e.Item.Cells[2]; string item = itemCell.Text; string price = priceCell.Text; if (((LinkButton)e.CommandSource).CommandName == "AddToCart") { dr[0] = item; dr[1] = price; Cart.Rows.Add(dr); } else { //Remove from Cart CartView.RowFilter = "Item='"+item+"'"; if (CartView.Count > 0) { CartView.Delete(0); } CartView.RowFilter = ""; } ShoppingCart.DataBind(); } </script>
