---
title: "Connection String using App.config"  
description: "I’m going to demonstrate how to get connection string  from App.config in C#.Net.ExampleApp.configxmlversion1.0encodingutf-8  configuration  conne"  
author: "Anonymous User"  
published: 2010-07-27  
updated: 2020-03-04  
canonical: https://www.mindstick.com/articles/18/connection-string-using-app-config  
category: ".net"  
tags: [".net"]  
reading_time: 1 minute  

---

# Connection String using App.config

\
I’m going to demonstrate how to get connection string from App.config in C#.Net.

##### Example

##### App.config

```
<?xmlversion="1.0"encoding="utf-8" ?><configuration>  <connectionStrings>     <addname="con1"connectionString="Server=abc\SQLEXPRESs;Database=Employee;Trusted_Connection=True"/>    </connectionStrings></configuration>
```

##### Form1.cs where we are going to use connection string of App.config

```
//namespace for sqlclientusing System.Data.SqlClient;//to use connectionstring we have to use System.Configuration namespaceusing System.Configuration; //fetching connectionstring from App.configstring strConnection= ConfigurationManager.ConnectionStrings["con1"].ConnectionString;//creating newsqlconnection con= new SqlConnection(strConnection);//opening connection     con.Open();
```

---

Original Source: https://www.mindstick.com/articles/18/connection-string-using-app-config

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