title: How to use a single connection string in whole winforms project
body: <p>I am using Winforms, MySQL and C# in my project. In that I use a connection string in the app settings.</p>
  
  <p>At each new page I will declare a connection string as public and use this string in the connection. </p>
  
  <pre><code>MySqlConnection connection = new MySqlConnection(MyConString);
  </code></pre>
  
  <p>I want to declare this MyConString only one time in the whole application. How to do this? Where to do?</p>