MapImageDataProviderBase.WebRequest Event

Occurs when a Map control sends a request to an external web service.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v24.2.dll

Declaration

C#

public event MapWebRequestEventHandler WebRequest

VB.NET

Public Event WebRequest As MapWebRequestEventHandler

Event Data

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.

Related GitHub Examples

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.

C#

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;

VB.NET

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