windowsforms-devexpress-dot-xtramap-dot-mapimagedataproviderbase.md
Occurs when a Map control sends a request to an external web service.
Namespace : DevExpress.XtraMap
Assembly : DevExpress.XtraMap.v25.2.dll
NuGet Package : DevExpress.Win.Map
public event MapWebRequestEventHandler WebRequest
Public Event WebRequest As MapWebRequestEventHandler
The WebRequest event's data class is MapWebRequestEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Accept | Gets or sets the web request’s Accept header. |
| Credentials | Gets or sets authentication information for the map web request. |
| Encoding | Specifies the character encoding of the map web request. |
| Headers | Gets or sets a collection of web headers associated with a request or response. |
| Proxy | Gets or sets proxy information for the request. |
| Referer | Gets or sets the Referer field of the HTTP header. |
| Uri | Get the URI of the Internet resource associated with the map web request. |
| UseDefaultCredentials | Gets or sets a value that indicates whether to use the default authentication information for the map web request. |
| UserAgent | Gets or sets the value of the user-agent HTTP header. |
The following code snippets (auto-collected from DevExpress Examples) contain references to the WebRequest event.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
winforms-map-connect-to-openstreetmap/CS/ConnectToOpenStreet/Form1.cs#L34
provider.WebRequest += OnWebRequest;
}
winforms-map-use-openstreetmap-search-service/CS/OsmSearchSample/MainForm.cs#L17
imageLayer.DataProvider = dataProvider;
dataProvider.WebRequest += DataProvider_WebRequest;
winforms-map-connect-to-openstreetmap/VB/ConnectToOpenStreet/Form1.vb#L31
provider.TileUriTemplate = "https://{0}.tile.MyCustomOSMProvider.org/{1}/{2}/{3}.png"
AddHandler provider.WebRequest, AddressOf OnWebRequest
End Sub
See Also
MapImageDataProviderBase Class