Asp.net 页面无法加载计算的ASP WEB变量
如何修复此表单，我需要在按下“显示报价”按钮后将结果重定向到其他页面；这里的主要问题是我无法保存数据并重定向它。第二页应该是这样的：Asp.net 页面无法加载计算的ASP WEB变量,asp.net,vb.net,Asp.net,Vb.net,如何修复此表单，我需要在按下“显示报价”按钮后将结果重定向到其他页面；这里的主要问题是我无法保存数据并重定向它。第二页应该是这样的： The price for the vehicle you have configured is [All the options selected/computed] The offer was issued on [Calendar date1] and remains valid until [Calendar date2] 我已经用缓存测试了一些东西…仍
The price for the vehicle you have configured is [All the options selected/computed]
The offer was issued on [Calendar date1] and remains valid until [Calendar date2]
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
GetData()
End Sub
1 reference
Private Sub GetData()
lblName.Text = Cache("Name").ToString
1blPrice.Text = Cache("Price").ToString
lblofferDate.Text = Cache("offerDate").ToString
1blofferExpiration.Text = Cache("ExpirationDate").ToString
End Sub
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="WebApplication1.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.auto-style1 {
width: 100%;
}
.auto-style2 {
width: 204px;
}
.auto-style3 {
text-decoration: underline;
}
.auto-style4 {
width: 843px;
border-collapse: collapse;
}
.auto-style5 {
height: 24px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table class="auto-style1">
<tr>
<td class="auto-style2">
<asp:Label ID="Label1" runat="server" Text="Last Name:"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">
<asp:Label ID="Label2" runat="server" Text="First Name:"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">
<asp:Label ID="Label3" runat="server" Text="Offer date:"></asp:Label>
</td>
<td>
<asp:Calendar ID="calOfferDate" runat="server" BackColor="White" BorderColor="#999999" CellPadding="4" DayNameFormat="Shortest" Font-Names="Verdana" Font-Size="8pt" ForeColor="Black" Height="180px" Width="200px">
<DayHeaderStyle BackColor="#CCCCCC" Font-Bold="True" Font-Size="7pt" />
<NextPrevStyle VerticalAlign="Bottom" />
<OtherMonthDayStyle ForeColor="#808080" />
<SelectedDayStyle BackColor="#666666" Font-Bold="True" ForeColor="White" />
<SelectorStyle BackColor="#CCCCCC" />
<TitleStyle BackColor="#999999" BorderColor="Black" Font-Bold="True" />
<TodayDayStyle BackColor="#CCCCCC" ForeColor="Black" />
<WeekendDayStyle BackColor="#FFFFCC" />
</asp:Calendar>
</td>
</tr>
<tr>
<td class="auto-style2">
<asp:Label ID="Label4" runat="server" Text="Offer expiration date:"></asp:Label>
</td>
<td>
<asp:Calendar ID="calExpirationDate" runat="server" BackColor="White" BorderColor="#999999" CellPadding="4" DayNameFormat="Shortest" Font-Names="Verdana" Font-Size="8pt" ForeColor="Black" Height="180px" Width="200px">
<DayHeaderStyle BackColor="#CCCCCC" Font-Bold="True" Font-Size="7pt" />
<NextPrevStyle VerticalAlign="Bottom" />
<OtherMonthDayStyle ForeColor="#808080" />
<SelectedDayStyle BackColor="#666666" Font-Bold="True" ForeColor="White" />
<SelectorStyle BackColor="#CCCCCC" />
<TitleStyle BackColor="#999999" BorderColor="Black" Font-Bold="True" />
<TodayDayStyle BackColor="#CCCCCC" ForeColor="Black" />
<WeekendDayStyle BackColor="#FFFFCC" />
</asp:Calendar>
</td>
</tr>
</table>
<hr />
</div>
<p class="auto-style3">
<strong>Set up your car</strong></p>
<table class="auto-style4">
<tr>
<td class="auto-style5">
<asp:Label ID="Label5" runat="server" Text="Equipment level"></asp:Label>
</td>
<td class="auto-style5">
<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem Value="20,000">Standard</asp:ListItem>
<asp:ListItem Value="22,000">Evolved</asp:ListItem>
<asp:ListItem Value="27,000">Advanced</asp:ListItem>
<asp:ListItem Value="32,000">Premium</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label6" runat="server" Text="Warranty type"></asp:Label>
</td>
<td>
<asp:RadioButtonList ID="RadioButtonList1" runat="server">
<asp:ListItem>Standard (2 years)</asp:ListItem>
<asp:ListItem>Extended (5 years)</asp:ListItem>
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label7" runat="server" Text="Optionals"></asp:Label>
</td>
<td>
<asp:RadioButtonList ID="rblOptionals" runat="server" AutoPostBack="True">
<asp:ListItem Selected="True">Yes</asp:ListItem>
<asp:ListItem>No</asp:ListItem>
</asp:RadioButtonList>
<asp:CheckBoxList ID="cblOptionals" runat="server" RepeatDirection="Horizontal" Width="727px">
<asp:ListItem Value="1,000">Alloys wheels</asp:ListItem>
<asp:ListItem Value="1,500">Climatronic</asp:ListItem>
<asp:ListItem Value="1,300">Automatic pilot</asp:ListItem>
<asp:ListItem Value="1,000">Road alert</asp:ListItem>
<asp:ListItem Value="850">Navigation</asp:ListItem>
</asp:CheckBoxList>
</td>
</tr>
<tr>
<td class="auto-style5">
<asp:Label ID="Label8" runat="server" Text="Discounts"></asp:Label>
</td>
<td class="auto-style5"><strong><em>
<asp:CheckBoxList ID="cbListDiscounts" runat="server" RepeatDirection="Horizontal" CssClass="auto-style5" Width="394px" TextAlign="Left">
<asp:ListItem>Whole payment</asp:ListItem>
<asp:ListItem>CASCO insurance</asp:ListItem>
</asp:CheckBoxList>
</em></strong></td>
</tr>
<tr>
<td> </td>
<td>
<asp:Button ID="btnDisplayOffer" runat="server" BackColor="Red" ForeColor="#CCCCCC" Height="20px" Text="Display offer" Width="101px" />
</td>
</tr>
</table>
</form>
</body>
</html>
只要把你的按钮编码出来。你点击这个按钮-它保存一些数据，然后做一个简单的响应。重定向
Protected Sub btnDisplayOffer_Click(sender As Object, e As EventArgs) Handles btnDisplayOffer.Click
SaveMyData
Response.Redirect("Offer.aspx")
End Sub
Sub SaveMyData
Session("Name") = txtFirstName.Text & " " & txtLastName.Text
Session("offerDate") = calOfferDate.SelectedDate
Session("ExpirationDate") = calExpirationDate.SelectedDate
.etc .etc. etc.
End Sub
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
if IsPostBack = False then
GetData()
end if
End Sub
Private Sub GetData()
lblName.Text = Session("Name")
1blPrice.Text = Session("Price")
lblofferDate.Text = Session("offerDate")
1blofferExpiration.Text = Session("ExpirationDate")
End Sub
如前所述，请始终记住检查IsPostPack=False。这是您的第一次页面加载-因此该代码块内部会变成类似于VB6或ms access表单加载事件-第一次是加载代码的位置-如果IsPostBack=False，则不会出现这种情况，然后，该代码每次都会运行—包括您在表单上放置的按钮等—因此，每当您使用该页面上的按钮或任何事件时，这些控件都会重新设置—作为一种编码习惯—将页面加载代码放在IsPostBack=False代码存根中—不要忘记使用该代码块—养成习惯—即使您我想你不需要了 只需将按钮代码编码出来即可。你点击这个按钮-它保存一些数据，然后做一个简单的响应。重定向
Protected Sub btnDisplayOffer_Click(sender As Object, e As EventArgs) Handles btnDisplayOffer.Click
SaveMyData
Response.Redirect("Offer.aspx")
End Sub
Sub SaveMyData
Session("Name") = txtFirstName.Text & " " & txtLastName.Text
Session("offerDate") = calOfferDate.SelectedDate
Session("ExpirationDate") = calExpirationDate.SelectedDate
.etc .etc. etc.
End Sub
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
if IsPostBack = False then
GetData()
end if
End Sub
Private Sub GetData()
lblName.Text = Session("Name")
1blPrice.Text = Session("Price")
lblofferDate.Text = Session("offerDate")
1blofferExpiration.Text = Session("ExpirationDate")
End Sub
如前所述，请始终记住检查IsPostPack=False。这是您的第一次页面加载-因此该代码块内部会变成类似于VB6或ms access表单加载事件-第一次是加载代码的位置-如果IsPostBack=False，则不会出现这种情况，然后，该代码每次都会运行—包括您在表单上放置的按钮等—因此，每当您使用该页面上的按钮或任何事件时，这些控件都会重新设置—作为一种编码习惯—将页面加载代码放在IsPostBack=False代码存根中—不要忘记使用该代码块—养成习惯—即使您我想你不需要了 缓存不是正确的选择：它的范围是应用程序范围，这意味着所有用户都可以看到相同的数据。将会话用于特定于用户的数据单击处理程序只重定向而不调用CreateCache。这计算了一个价格，却忘记了itCache不是正确的选择：它的范围是应用程序范围，这意味着所有用户都看到相同的数据。将会话用于特定于用户的数据单击处理程序只重定向而不调用CreateCache。然后计算出一个价格，然后忘记它