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dymaptic.GeoBlazor.Core

dymaptic.GeoBlazor.Core.Components.Layers

TileLayer Class

The TileLayer allows you work with a cached map service exposed by the ArcGIS Server REST API and add it to a Map
as a tile layer. A cached service accesses tiles from a cache instead of dynamically rendering images. Because they
are cached, tiled layers render faster than MapImageLayers. To create an instance of TileLayer, you must reference
the URL of the cached map service.

ArcGIS
  
JS API

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public class TileLayer : dymaptic.GeoBlazor.Core.Components.Layers.Layer

Inheritance System.Object 🡒 Microsoft.AspNetCore.Components.ComponentBase 🡒 MapComponent 🡒 Layer 🡒 TileLayer

Derived
VectorTileLayer

Properties

TileLayer.LayerType Property

Used internally to identify the sub type of Layer

public override string LayerType { get; }

Property Value

System.String

TileLayer.PortalItem Property

The PortalItem from which the layer is loaded.

public dymaptic.GeoBlazor.Core.Components.PortalItem? PortalItem { get; set; }

Property Value

PortalItem

TileLayer.Url Property

The URL of the REST endpoint of the layer.

public string? Url { get; set; }

Property Value

System.String

Methods

TileLayer.RegisterChildComponent(MapComponent) Method

Called from dymaptic.GeoBlazor.Core.Components.MapComponent.OnAfterRenderAsync(System.Boolean) to “Register” the current component with it’s parent.

public override System.Threading.Tasks.Task RegisterChildComponent(dymaptic.GeoBlazor.Core.Components.MapComponent child);

Parameters

child MapComponent

The calling, child component to register

Returns

System.Threading.Tasks.Task

Exceptions

InvalidChildElementException
Throws if the current child is not a valid sub-component to the parent.

TileLayer.UnregisterChildComponent(MapComponent) Method

Undoes the “Registration” of a child with its parent.

public override System.Threading.Tasks.Task UnregisterChildComponent(dymaptic.GeoBlazor.Core.Components.MapComponent child);

Parameters

child MapComponent

The child to unregister

Returns

System.Threading.Tasks.Task

TileLayer.ValidateRequiredChildren() Method

When a MapView is prepared to render, this will check to make sure that all properties with the
RequiredPropertyAttribute are provided.

public override void ValidateRequiredChildren();

Exceptions

MissingRequiredChildElementException
The consumer needs to provide the missing child component

MissingRequiredOptionsChildElementException
The consumer needs to provide ONE of the options of child components