How to access a app.config's appsettings key value.

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Hi,
In my application I have 1 class library project and 1 app.config file.Now I want to access the app.config's app settings key value.eg.

HTML

<add key="test" value="Hi" />

now I am writing

C#

String str=System.Configuration.ConfigurationManager.Appsetting["test"].toString();

In one of the method of a class.
but it giving value null in the string.

can any one help me out how to access it.
My requirement is I have to put a folder path in the config file and I have to read it from my application.

Posted 28-Nov-11 18:25pm

souravghosh18

Updated 22-Nov-16 21:43pm

JF2015

v2

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JF2015 29-Nov-11 0:30am

Edited to add code formatting.

Nickos_me 29-Nov-11 1:36am

I understand you right - you use library in you windiws app and want to get info from app.config of library? It's sipler to write this app setting data in application app.config, because Configuration manager use that one by default, and not from the library.

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D K N T H · Accepted Answer · 2011-11-28T18:35:00

Solution 1

try this code,

C#

string str = new AppSettingsReader().GetValue("test", typeof(System.String)).ToString();

hope it helps,

mark this as answer if it helps you
and dont' forget to vote ..

thanks

Posted 28-Nov-11 18:35pm

D K N T H

Comments

souravghosh18 29-Nov-11 1:28am

Hi, Thanks for your response I got the error The key 'test' does not exist in the appSettings configuration section. but in the app.config file I write it.
<configuration><appsettings><add value="Hi" key="test">

D K N T H 29-Nov-11 1:41am

please give me some details about it