Modify the web.config's value at runtime

Posted Date: 04 Nov 2009	Resource Type: Code Snippets	Category: C# Syntax
Author: Lakhan Pal	Member Level: Diamond
Rating:	Points: 10

This code snippets will describe the way with which we can change the value of key present in the appsetting section of the web.config.

Suppose you have a key named Price as:


<add key="Price" value="5" />

and you want to change this value dynamically.

Code to Change the above Value:
Namespace needs to added for this:


using System.Configuration;
using System.Web.Configuration;


Configuration myconf = WebConfigurationManager.OpenWebConfiguration("~");
myconf.AppSettings.Settings["Price"].Value = txtPrice.Text.Trim();
myconf.Save();

In the above code txtPrice.Text contains the new value for price.

Thanks & Regards
Lakhan Pal Garg

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