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dymaptic.GeoBlazor.Core

dymaptic.GeoBlazor.Core.Components.Layers

LayerObject Class

Abstract base class for objects that are a child of a Layer and have a Symbol property.

public abstract class LayerObject : dymaptic.GeoBlazor.Core.Components.MapComponent

Inheritance System.Object 🡒 Microsoft.AspNetCore.Components.ComponentBase 🡒 MapComponent 🡒 LayerObject

Derived
Graphic
Label
Renderer
UniqueValueInfo

Properties

LayerObject.Symbol Property

The Symbol for the object.

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

Property Value

Symbol

Methods

LayerObject.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.

LayerObject.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

LayerObject.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