InformationLayer.DataProvider Property
Provides access to an object that obtains information data from online data providers.
Namespace: DevExpress.XtraMap
Assembly: DevExpress.XtraMap.v20.1.dll
Declaration
[DefaultValue(null)]
public InformationDataProviderBase DataProvider { get; set; }<DefaultValue(Nothing)>
Public Property DataProvider As InformationDataProviderBaseProperty Value
| Type | Default | Description |
|---|---|---|
| InformationDataProviderBase | null |
An InformationDataProviderBase class descendant that is a specific data provider. |
Remarks
For more information, refer to Map Image Data.
Examples
This example demonstrates how to allow users to search for a specific place on a map using the Search panel.
To enable searching in the map control, do the following.
- Create an InformationLayer and add it to the map.
- Create an instance of the BingSearchDataProvider and assign it to the InformationLayer.DataProvider property.
- Specify the Bing Maps key using the BingMapDataProvider.BingKey property.
The Search panel appears automatically (since the BingSearchDataProvider.ShowSearchPanel property value is true by default).
NOTE
Refer to How to: Get a Bing Maps Key if you run the application and see a window with the following error message: "The specified Bing Maps key is invalid. To create a developer account, refer to https://www.microsoft.com/en-us/maps/create-a-bing-maps-key".
NOTE
A complete sample project is available at https://github.com/DevExpress-Examples/how-to-connect-a-map-control-to-the-bing-search-web-service-e5065
using DevExpress.XtraMap;
using System.Windows.Forms;
namespace ConnectBingSearchProvider {
public partial class Form1 : Form {
const string bingKey = "YOUR BING KEY HERE";
InformationLayer SearchLayer {
get {
return (InformationLayer)mapControl1.Layers["SearchLayer"];
}
}
public Form1() {
InitializeComponent();
BingSearchDataProvider searchProvider = new BingSearchDataProvider() {
BingKey = bingKey
};
searchProvider.SearchOptions.ResultsCount = 5;
SearchLayer.DataProvider = searchProvider;
}
}
}