Read ConnectionString From App.config File

Introduction

Read ConnectioString Infromation from App.config file.

Please write the below code in app.config file.

<Configuration>
    <connectionStrings>
        <add name="AppName" connectionString="Connectionstring Name" />
    </connectionStrings>
</Configuration>

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n the code behind file, you will have to use System.Configuration namespace. So add it at the top of the .cs file like

using System.Configuration;

Now, write the following code to retrieve the values from the app.config appSettings and connectionStrings.

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Please write the below code in .cs file. This class file is common to all.

public string connection()
        {
          return System.Configuration.ConfigurationManager.ConnectionStrings["AppName"].ToString();
        }