Introduction:
Here I will explain how to use multiple web.config files in single application using asp.net
Description:
I attended one interview at that time they asked one question that is it possible to use multiple web.config files in single asp.net application? For that question answer is Yes we can use multiple web.config files in single web application but how? By creating web.config file in sub root folders we can use multiple web.config files in our application but each folder should contains only one web.config file. Here I will explain step by step how we can use multiple web.config files in our application.
Here I will explain how to use multiple web.config files in single application using asp.net
Description:
I attended one interview at that time they asked one question that is it possible to use multiple web.config files in single asp.net application? For that question answer is Yes we can use multiple web.config files in single web application but how? By creating web.config file in sub root folders we can use multiple web.config files in our application but each folder should contains only one web.config file. Here I will explain step by step how we can use multiple web.config files in our application.
First create one new web application that contains Default.aspx page and one web.config file. Now right click on your application and select New folder after creation of new folder right click on new folder select Add new item and add one aspx page and one web.config file to this folder that files structure like this
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After that write the following code in root folder web.config file appsettings section like this
<appSettings>
<add key="rootfolder" value="Root Folder web.config"/>
<add key="test1" value="Testing the application for root folder web.config"/>
</appSettings >
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After that open Default.aspx page in root folder and write the following code
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>RootFolder web.config</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<b>
Root Folder values
</b>
</div>
<br />
<div>
AppKey value:
<b>
<asp:Label ID="lbltxt" runat="server" Text="<%$appSettings:rootfolder %>"/>
</b>
<br />
Appkey Test value:
<b>
<asp:Label ID="Label1" runat="server" Text="<%$appSettings:test1 %>"/>
</b>
</div>
</form>
</body>
</html>
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Now run your application and check the output for root folder
Demo
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After that open the sub root folder web.config file and write the following code in appsettings section like this
<appSettings>
<add key="subrootfolder" value="Sub Root Folder web.config"/>
<add key="test1" value="Testing the application for sub root folder web.config"/>
</appSettings >
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After that open ChildPage.aspx page in sub root folder and write the following code
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>SubRoot Folder web.config</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<b>
SubRoot Folder values
</b>
</div>
<br />
<div>
AppKey value:
<b>
<asp:Label ID="lbltxt" runat="server" Text="<%$appSettings:subrootfolder %>"/>
</b>
<br />
Appkey Test value:
<b>
<asp:Label ID="Label1" runat="server" Text="<%$appSettings:test1 %>"/>
</b>
</div>
</form>
</body>
</html>
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Now run your application and check the output for sub root folder
Demo
 |
If you observe above outputs Default.aspx page getting values from root folder web.config file and ChildPage.aspx page getting values from subroot folder web.config file.
In this way we can use multiple web.config files in asp.net web application. I hope it helps you
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