IdItemKeyProvider Class

This class is used to provide ID values of map chart items as keys for the KeyColorColorizer to colorize these items.

Assembly: DevExpress.Xpf.Map.v18.2.dll

Declaration

C#
VB.NET

public class IdItemKeyProvider :
    MapDependencyObject,
    IColorizerItemKeyProvider

Public Class IdItemKeyProvider
    Inherits MapDependencyObject
    Implements IColorizerItemKeyProvider

Examples

To colorize map items using the KeyColorColorizer do the following.

Create a KeyColorColorizer object and assign it to the VectorLayer.Colorizer property.
Specify the KeyColorColorizer.ItemKeyProvider property.
Customize the MapColorizer.Colors collection.
Add several ColorizerKeyItem items to the KeyColorColorizer.Keys collection. Note that if keys are not specified, they will be generated automatically.

NOTE

A complete sample project is available at https://github.com/DevExpress-Examples/customize-appearance-of-generated-pie-chart-items-t183429.

MainWindow.xaml

<dxm:VectorLayer.Colorizer>
    <dxm:KeyColorColorizer>
        <dxm:KeyColorColorizer.ItemKeyProvider>
            <dxm:IdItemKeyProvider/>
        </dxm:KeyColorColorizer.ItemKeyProvider>
        <dxm:KeyColorColorizer.Colors>
            <Color>#FFFFCF62</Color>
            <Color>#FFA9B5BC</Color>
            <Color>#FFE99876</Color>
        </dxm:KeyColorColorizer.Colors>
        <dxm:KeyColorColorizer.Keys>
            <dxm:ColorizerKeyItem Name="Gold">
                <dxm:ColorizerKeyItem.Key>
                    <sys:Int32>1</sys:Int32>
                </dxm:ColorizerKeyItem.Key>
            </dxm:ColorizerKeyItem>
            <dxm:ColorizerKeyItem Name="Silver">
                <dxm:ColorizerKeyItem.Key>
                    <sys:Int32>2</sys:Int32>
                </dxm:ColorizerKeyItem.Key>
            </dxm:ColorizerKeyItem>
            <dxm:ColorizerKeyItem Name="Bronze">
                <dxm:ColorizerKeyItem.Key>
                    <sys:Int32>3</sys:Int32>
                </dxm:ColorizerKeyItem.Key>
            </dxm:ColorizerKeyItem>
        </dxm:KeyColorColorizer.Keys>
    </dxm:KeyColorColorizer>
</dxm:VectorLayer.Colorizer>