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Version 4: Upgrade to VS 2017

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ClemensF 2017-08-04 23:29:05 +02:00
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@ -32,22 +32,24 @@ The WPF version allows to use a System.Runtime.Caching.ObjectCache instance for
The cache may be set to an instance of System.Runtime.Caching.MemoryCache (e.g. MemoryCache.Default),
but caching can also be done persistently by some specialized ObjectCache implementation.
Map Control comes with two such implementations:
* FileDbCache, an ObjectCache implementation based on EzTools FileDb, a simple, file based No-SQL database.
* ImageFileCache, an ObjectCache implementation that stores each cached map tile as a single image file,
in the original file format delivered by the map provider (typically PNG or JPG).
ImageFileCache does not support expiration, which means that cached tile image files will not be deleted automatically.
The cache may hence consume a considerable amount of disk space.
in the original file format delivered by the map provider (typically PNG or JPG). ImageFileCache is part of
the MapControl.WPF library. It does not support expiration, which means that cached tile image files will
not be deleted automatically. The cache may hence consume a considerable amount of disk space.
* FileDbCache, an ObjectCache implementation based on EzTools FileDb, a simple, file based No-SQL database,
in a separate library FileDbCache.WPF.
If you want to try the sample application with persistent caching, uncomment the appropriate TileImageLoader.Cache
setting in the sample application's MainWindow.xaml.cs file. Please note that some map providers may not allow
persistent caching of their map data.
Since version 2.4.0 the TileImageLoader of the Windows Runtime version also supports caching of map tiles to local image
files and to a FileDb file. The cache functionality is defined by the interface IImageCache (in namespace MapControl.Caching)
and implemented by the classes ImageFileCache and FileDbCache in libraries ImageFileCache.WinRT and FileDbCache.WinRT.
Local image files are written to the ApplicationData.Current.TemporaryFolder by default.
For UWP, the cache functionality is defined by the interface IImageCache in the namespace MapControl.Caching,
and implemented by the classes ImageFileCache and FileDbCache (in library FileDbCache.UWP). Local image files
are written to the ApplicationData.Current.TemporaryFolder by default.
XAML Map Control is also available on NuGet, with Package Id XAML.MapControl.
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XAML Map Control is available on NuGet, with Package Id XAML.MapControl.
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