Trying To Store Multiple Mark Point on Map

[SteveJG]

@Saheb_Kole

• Mark User Current Location
• Store All Mark Point With Title & Description in Marker
• Show All Mark Point in Map At A Time
• Hide All Mark Point At a Time

• You are already doing the first.
• To store the locations of all your points you need a TinyDB to save them and their descriptions as a List of Lists on the device or use an outside database.
• To show all mark points simultaneously you might specify
  either a design time Marker for each point you intend to display (like Marker1, Marker2 etc) OR use run time markers Add a lot of Markers at Map - #6 by SteveJG
• To show individual Markers use a ListPicker or a ListView to select and display a single run time Marker (or more complex select a run time Marker from your list of run time Markers.
• to HIDE all Markers set their visible property to false using an Any component Marker control

What you hope to do is complex. For more assistance consult these links.