Loading string from Web.config (C#) : appSettings « Configuration « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. Configuration
  3. appSettings
File: Web.config

<?xml version="1.0"?>

<configuration>
  <appSettings>
    <add key="DataFilePath" value="e:\NetworkShare\Documents\WebApp\Shared"/>
  </appSettings>
  
</configuration>



File: ShowSettings.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ShowSettings.aspx.cs" Inherits="ShowSettings" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form ID="form1" runat="server">
    <div>
      <asp:Label ID="lblTest" runat="server" />    
    </div>
    </form>
</body>
</html>


File: ShowSettings.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.Configuration;

public partial class ShowSettings : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    lblTest.Text = "This app will look for data in the directory:<br /><b>";
    lblTest.Text += WebConfigurationManager.AppSettings["DataFilePath"];
    lblTest.Text += "</b>";    
    }
}








16.3.appSettings
16.3.1.Storing Custom Settings in the web.config File
16.3.2.Retrieve values from the appSettings section either programmatically or declaratively.
16.3.3.Loading string from Web.config (C#)
16.3.4.Retrieve AppSetting
16.3.5.ConfigurationSettings.AppSettings