A list of constant values you can use throughout your application. The application can never change these values, only you can.
Settings are useful when you want to deploy one application in multiple environments and need different values. This could, for example, be folder or file names.
Once you have created a constant, you can select that value in some properties of controls.
Provide a name and value for a setting. Multiple settings can be added to an application.
Settings are available to be assigned to properties.