MapTileLayer Class
Represents a map tile layer.
Constructor
| Definition | Description |
|---|---|
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Initializes a new instance of the MapTileLayer class. |
Public Properties
| Name | Type | Description |
|---|---|---|
|
Bounds |
Gets or sets the areas on the tile layer that are visible. An empty collection (default) displays the tile layer everywhere. |
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Opacity |
double |
Gets or sets the opacity of the tile layer, defined by a double between 0 (not visible) and 1. |
|
FillMissingTiles |
bool |
Gets or sets whether tiles that are not available at the requested zoom level are displayed using the nearest zoom level available. |
|
TileSource |
string |
Gets or sets the URL that defines the source of the tiles. Do not use this callback event function if you are using the GetTileUri event and callback function. |
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MinZoomLevel, MaxZoomLevel |
double |
Gets or sets the minimum and maximum zoom level to display in the tile layer. The default values are 1 and 20. |
|
Visible |
bool |
Gets or sets whether the tile layer is shown. The default is true. |
|
ZIndex |
int |
Gets or sets the z-index of the tile layer with respect to other items on the map. |
Events
| Name | Arguments | Description |
|---|---|---|
|
GetTileUri |
Occurs when a map tile is requested and returns the map tile URL. Do not use this callback event function if you are using the TileSource property. |
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TileDownloadCompleted |
Occurs when the all map tiles for the current view are downloaded. |
Code Examples
Create a map tile layer and add it to the map tile layer collection (MapTileLayerCollection) of the map.
MapTileLayer tileLayer = new MapTileLayer();
tileLayer.TileSource = "http://www.microsoft.com/maps/isdk/ajax/layers/lidar/{quadkey}.png";
map.TileLayers.Add(tileLayer);
map.SetView(new Location(48.03, -122.42), 11, MapAnimationDuration.None);
A tile source can have {subdomain} and {quadkey} placeholders. When the tile layer source is created, {subdomain} is replaced by a value from zero (0) to three (3) and is used to distribute requests across multiple servers. Similarly, {quadkey} is replaced by the quadkey. A quadkey uniquely identifies single tiles at particular levels of detail. For information about quadkeys, see Bing Maps Tile System.
