Hello,
When I entered the first Try It Out in Chapter 5 I got the following error and warning. I am not sure how to correct it
error and warning messages
Warning 1 C:\BegASPNET\Site\PlanetWrox\Demos\CalculatorDemo. aspx: ASP.NET runtime error: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. (C:\BegASPNET\site\planetwrox\web.config line 52) C:\BegASPNET\Site\PlanetWrox\Demos\CalculatorDemo. aspx 1 1 C:\BegASPNETError 2 It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. C:\BegASPNET\Site\PlanetWrox\web.config 52
Line 52 of the web.config file contains the following section
<pages>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</controls>
</pages>
Markup code
<% @Page Language="C#" AutoEventWireup="true" CodeFile="CalculatorDemo.aspx.cs" %>
<!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>Untitled Page</title>
<style type="text/css">
.style1
{
width: 100%;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table class="style1">
<tr>
<td colspan="3">
<asp:Label ID="lblResult" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:TextBox ID="txtValue1" runat="server"></asp:TextBox>
</td>
<td>
<asp:DropDownList ID="lstOperator" runat="server" AutoPostBack="True">
<asp:ListItem>+</asp:ListItem>
<asp:ListItem>-</asp:ListItem>
<asp:ListItem>*</asp:ListItem>
<asp:ListItem>/</asp:ListItem>
</asp:DropDownList>
</td>
<td>
<asp:TextBox ID="txtValue2" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
</td>
<td>
<asp:Button ID="btnCalculate" runat="server" Font-Bold="True"
onclick="btnCalculate_Click" Text="Calculate" />
</td>
<td>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
C# Code File
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class Site_PlanetWrox_Demos_CalculatorDemo : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnCalculate_Click(object sender, EventArgs e)
{
if (txtValue1.Text.Length > 0 && txtValue2.Text.Length > 0)
{
double result = 0;
double value1 = Convert.ToDouble(txtValue1.Text);
double value2 = Convert.ToDouble(txtValue2.Text);
switch (lstOperator.SelectedValue)
{
case "+":
result = value1 + value2;
break;
case "-":
result = value1 - value2;
break;
case "*":
result = value1 * value2;
break;
case "/":
result = value1 / value2;
break;
}
lblResult.Text = result.ToString();
}
else
{
lblResult.Text = string.Empty;
}
}
}
Thank you for your help.
Brian
Chapter 5 First Try It Out
