Gets the virtual directory containing the cache tiles for a given layer within a map (data frame).
GetVirtualCacheDirectory(string MapName, int LayerID)
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Parameter |
Description |
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MapName |
Name of the map (data frame) on which a cache was created.
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LayerID |
The layer id of the layer in the map on which a cache was created. A multilayer cache will have a different virtual directory for each layer. A fused cache will only have one virtual directory. To get the virtual directory of a fused cache, specify a value of -1.
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Return Value
A string representing the url to a virtual directory containing cached tile images. If the map or layer does not have a virtual cache directory, the method will return an exception.
Remarks
To determine if you are working with a map service that has a cache, use the IsFixedScaleMap() method.
To determine if you are working with a multilayer or fused cache, use the methods HasLayerCache() or HasSingleFusedCache() on the map service proxy. The virtual directory for a fused cache follows the pattern <base url>\<map name>\_alllayers. For a multilayer cache the pattern is <base url>\<map name>\<layer name>. Layer names can be retrieved via the MapServerInfo object returned from the GetServerInfo() method. Each layer is referenced via a MapLayerInfo object accessible via the MapLayerInfos property.
Note that a map service with a multilayer cache may have a cache generated on some layers and not others.
Examples