In essence, MapView is a container for a map. It resides in the Esri.ArcGISRuntime.Controls
namespace and is the most important control in ArcGIS Runtime because, without it, you can't view a map. It contains a series of properties, methods, and events just like any other .NET control. However, it's easy to get overwhelmed with all of the options, so let's dissect these options one by one and show some examples of use. Before we look at the details of this control, we first need to understand some mapping concepts.
As a mapping developer, you really need to understand projections and coordinate systems. They have a huge impact not only on how data is displayed, but also on performance, usability, and other factors. Projections attempt to portray the surface of the earth on a flat surface. Coordinate systems use a three-dimensional sphere to define a location on the earth's surface.
There are many kinds of projections you can use and it really depends...