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Alex
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answered on 08 Aug 2011, 12:14 PM
Please help!
We need to paint the shapes based on some properties outside of the shapefile. The values, determining the colors, change frequently; so we can't place them into the shapefile. For example, I need to show the today's temperature in every country. How could we do it?
We need to paint the shapes based on some properties outside of the shapefile. The values, determining the colors, change frequently; so we can't place them into the shapefile. For example, I need to show the today's temperature in every country. How could we do it?
0
Hi Alexander,
You can handle the PreviewReadCompleted event of the MapShapeReader to set color for map shape. Data from dbf-file will be available in the ExtendedData property of map shape. You can get it using the ExtendedData.GetValue method.
The sample code is below.
Kind regards,
Andrey Murzov
the Telerik team
You can handle the PreviewReadCompleted event of the MapShapeReader to set color for map shape. Data from dbf-file will be available in the ExtendedData property of map shape. You can get it using the ExtendedData.GetValue method.
The sample code is below.
<telerik:RadMap x:Name="radMap"> <telerik:RadMap.Provider> <telerik:EmptyProvider /> </telerik:RadMap.Provider> <telerik:InformationLayer x:Name="informationLayer"> <telerik:InformationLayer.Reader> <telerik:MapShapeReader DataSource="world.dbf" Source="world.shp" PreviewReadCompleted="MapShapeReader_PreviewReadCompleted" ToolTipFormat="CNTRY_NAME"/> </telerik:InformationLayer.Reader> </telerik:InformationLayer></telerik:RadMap>private void Reader_PreviewReadCompleted(object sender, PreviewReadShapesCompletedEventArgs eventArgs){ if (eventArgs.Error == null) { foreach (MapShape shape in eventArgs.Items) { ExtendedData extendedData = shape.ExtendedData; if (extendedData != null) { string countryName = (string)shape.ExtendedData.GetValue("CNTRY_NAME"); if (countryName == "United States") { shape.Fill = new SolidColorBrush(Colors.Green); } } } }}Kind regards,
Andrey Murzov
the Telerik team
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