TileLayer.CachePath Property
Gets or sets a directory on disk where tile bitmaps are cached.
Syntax
public System.String CachePath { get; set; }Property Value
Default: ""
A directory on disk where tile bitmaps are cached.
Remarks
If this property is specified, and CacheAsBitmaps is True, bitmaps are cached to disk files. Loading a cached tile bitmap is generally much faster than generating it from the original data from the sublayer. The cached files may be reused many times during an application run, or from one application run to another.
The cache directory can be used by several TileLayer instances at the same time, provided that they have the exact same properties and identical sub-layers. This means that it is allowed to clone a TileLayer or View without worrying about the tile cache.
The amount of disk space used by the cache is controlled by the CacheSize property.
Even though the API allows this property to be modified, trying to do so will throw an exception. To specify the cache path in application code, use the correct constructor overload instead.
On Windows, put the disk cache on an NTFS file system if possible. When the disk cache is full, tiles that haven't been used for a long time will be removed, based on the last time the files were accessed on disk. FAT32 files systems for instance do not record file access times, so the file modification will be used instead to decide which files to remove. This is not as optimal, and may cause unnecessary regeneration of the disk files.
Platforms
Windows, Linux, Android