asp.net之购物车

buy1.aspx

<body>
    <form id="form1" runat="server">
    <asp:CheckBox ID="C1" runat="server" Text="猪肉" /> <br />
    <asp:CheckBox ID="C2" runat="server" Text="牛肉" /> <br />
    <asp:CheckBox ID="C3" runat="server" Text="羊肉" /> <br />
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="提交" />
    <br />
    <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="~/buy2.aspx">买点别的
    </asp:HyperLink> &nbsp;&nbsp;
    <asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl="~/cart.aspx">查看购物车
    </asp:HyperLink></form>

</body>

buy1.aspx.cs

 protected void Button1_Click(object sender, EventArgs e)
        {
            if (C1.Checked) Session["b1"] = C1.Text; else Session["b1"] = null;
            if (C2.Checked) Session["b2"] = C2.Text; else Session["b2"] = null;
            if (C3.Checked) Session["b3"] = C3.Text; else Session["b3"] = null;
        }

buy2.aspx

<body>
    <form id="form1" runat="server">
    <asp:CheckBox ID="C4" runat="server" Text="篮球" /><br />
    <asp:CheckBox ID="C5" runat="server" Text="足球" /><br />
    <asp:CheckBox ID="C6" runat="server" Text="排球" /><br />
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="提交" />
    <br />
    <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="~/buy1.aspx">买点别的
    </asp:HyperLink> &nbsp;&nbsp;
    <asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl="~/cart.aspx">查看购物车
    </asp:HyperLink></form>

</body>

buy2.aspx.cs

        protected void Button1_Click(object sender, EventArgs e)
        {
            if (C4.Checked) Session["b4"] = C4.Text; else Session["b4"] = null;
            if (C5.Checked) Session["b5"] = C5.Text; else Session["b5"] = null;
            if (C6.Checked) Session["b6"] = C6.Text; else Session["b6"] = null;
        }

cart.aspx

<body>
    <form id="form1" runat="server">
    您的购物车：<br />
    <%for(int i=0;i<Session.Count;i++)
          if(Session[i]!=null)   Response.Write(Session[i].ToString() + "<br>");  
    %>
    <br />
    <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="~/buy1.aspx">返回
    </asp:HyperLink>
</form>

</body>

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