VectorTileDataProviderBase.StyleFileUri Property

SECURITY NOTE

Downloading files passed through URLs specified by the StyleFileUri property may create security issues. Review the following help topic and learn how to spot, analyze, and prohibit unwanted download requests:

Suppress Control Requests to Download Data from External URLs

Gets or sets a style used to customize the vector tile map’s appearance.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v25.1.dll

NuGet Package: DevExpress.Wpf.Map

Declaration

C#

public Uri StyleFileUri { get; set; }

VB.NET

Public Property StyleFileUri As Uri

Property Value

Type	Description
Uri	A Uri object that specifies the style file’s location.

Remarks

Use the StyleFileUri property to apply a custom style to vector tiles. Styles apply on a client’s side before rendering the map.

A style must be a valid JSON file. The Map Control supports layers and their properties:

• filter
• paint
  • fill-color
  • fill-opacity
  • line-color
  • line-opacity
  • line-width
  • text-color
• layout
  • visibility
  • text-field
  • text-font
  • text-max-width
  • text-size
  • text-transform

Property values can be set directly (for example, “text-size”: 10) or via an interpolation syntax (for example, “line-width”: {“base”: 1.2, “stops”: [[15, 1], [17, 4]]}).

The following color formats are supported: hsl, rgb, rgba, hsla, hex. You can use web color names, such as red or yellow.

Apply a Style

1. The MapControl uses the System.Text.Json library to parse style files. Install the System.Text.Json package if your .NET Framework application does not reference this library. .NET projects do not require manual installation of the System.Text.Json package, as it is already included in the .NET environment. Set the DevExpress.Map.Native.VectorTileStyleParser.ProcessingLibrary property to NewtonsoftJson to use the Newtonsoft.Json library instead.
2. Use the VectorTileDataProviderBase.StyleFileUri property to define a path to a style file.

XAML

<dxm:MbTilesDataProvider ... StyleFileUri="D:\Styles\basic-style.json"/>