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Change value of a Specific Property in app.config using C#

Change value of a Specific Property in app.config using C#

Ervis Trupja

9yAsked Nov 12, 2016, 1:04 PM1.6kLearn iOS Programming

I want to change the value of from my app.config file using C#.

App.Config

I want to change the value from Test to Debug using C#. How can I do it?
Thanks in advance. :)

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Manas Mohapatra9y ago
Try with below code:
Before:

oldValue" />

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

Configuration config = WebConfigurationManager.OpenWebConfiguration("/");
string oldValue = config.AppSettings.Settings["SomeKey"].Value;
config.AppSettings.Settings["SomeKey"].Value = "NewValue";
config.Save(ConfigurationSaveMode.Modified);
After:

newValue" />
Pradeep Sahoo9y ago
First read the key from app setting using configuration Manager.appsetting[]andthen update it. Here is a link to follow http://stackoverflow.com/questions/11149556/app-config-change-value