Can't find GridView in ASP
I am brand new to asp and downloaded some example code of a shopping cart. When I created a new project in Visual Studio, added all the files in and tried to compile I got the following error.
Error 1 The name 'gvShoppingCart' does not exist in the current context c:\users\slaphappysmoker\documents\visual studio 2010\Projects\Shopcart\Shopcart\ViewCart.aspx.cs 21 3 Shopcart
However I can see where gvShoppingCart gets defined in the ViewCart.aspx file.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ViewCart.aspx.cs" Inherits="ViewCart" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Shopping Cart</title>
<link href="Styles/StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<div class="container">
<h1>Shopping Cart</h1>
<a href="Default.aspx">< Back to Products</a>
<br /><br />
<asp:GridView runat="server" ID="gvShoppingCart" AutoGenerateColumns="false" EmptyDataText="There is nothing in your shopping cart." GridLines="None" Width="100%" CellPadding="5" ShowFooter="true" DataKeyNames="ProductId" OnRowDataBound="gvShoppingCart_RowDataBound" OnRowCommand="gvShoppingCart_RowCommand">
<HeaderStyle HorizontalAlign="Left" BackColor="#3D7169" ForeColor="#FFFFFF" />
<FooterStyle HorizontalAlign="Right" BackColor="#6C6B66" ForeColor="#FFFFFF" />
<AlternatingRowStyle BackColor="#F8F8F8" />
<Columns>
<asp:BoundField DataField="Description" HeaderText="Description" />
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox runat="server" ID="txtQuantity" Columns="5" Text='<%# Eval("Quantity") %>'></asp:TextBox><br />
<asp:LinkButton runat="server" ID="btnRemove" Text="Remove" CommandName="Remove" CommandArgument='<%# Eval("ProductId") %>' style="font-size:12px;"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="UnitPrice" HeaderText="Price" ItemStyle-HorizontalAlign="Right" HeaderStyle-HorizontalAlign="Right" DataFormatString="{0:C}" />
<asp:BoundField DataField="TotalPrice" HeaderText="Total" ItemStyle-HorizontalAlign="Right" HeaderStyle-HorizontalAlign="Right" DataFormatString="{0:C}" />
</Columns>
</asp:GridView>
<br />
<asp:Button runat="server" ID="btnUpdateCart" Text="Update Cart" OnClick="btnUpdateCart_Click" />
</div>
</form>
</body>
</html>
Here is the code that is calling the GridView in the ViewCart.aspx.cs file:
protected void BindData() {
// Let's give the data to the GridView and let it work!
// The GridView will t开发者_开发技巧ake our cart items one by one and use the properties
// that we declared as column names (DataFields)
gvShoppingCart.DataSource = ShoppingCart.Instance.Items;
gvShoppingCart.DataBind();
}
How can I get the ViewCart.aspx.cs code file to recognize the ViewCart.aspx and the GridView contained within?
Edit: Added the function that calls the gridview.
Try to make sure that the gridview has a reference in the designer.cs file
protected global :: System.Web.UI.WebControls.GridView gvShoppingCart;
加载中,请稍侯......
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