MarkerOverlay¶
Namespace: ThinkGeo.UI.Blazor
Represents the base class of MarkerOverlay.
public abstract class MarkerOverlay : Overlay, Microsoft.AspNetCore.Components.IComponent, Microsoft.AspNetCore.Components.IHandleEvent, Microsoft.AspNetCore.Components.IHandleAfterRender
Inheritance Object → ComponentBase → Overlay → MarkerOverlay
Implements IComponent, IHandleEvent, IHandleAfterRender
Properties¶
OnClick¶
Occurs when the mouse click a marker.
public EventCallback<ClickedMarkerOverlayEventArgs> OnClick { get; set; }
Property Value¶
EventCallback<ClickedMarkerOverlayEventArgs>
IsVisible¶
public bool IsVisible { get; set; }
Property Value¶
OnMouseOut¶
Occurs when the mouse move out of a marker.
public EventCallback<MouseOutMarkerOverlayEventArgs> OnMouseOut { get; set; }
Property Value¶
EventCallback<MouseOutMarkerOverlayEventArgs>
OnMouseOver¶
Occurs when the mouse over a marker.
public EventCallback<MouseOverMarkerOverlayEventArgs> OnMouseOver { get; set; }
Property Value¶
EventCallback<MouseOverMarkerOverlayEventArgs>
Id¶
Gets or sets Id.
public string Id { get; set; }
Property Value¶
Constructors¶
MarkerOverlay()¶
public MarkerOverlay()
Methods¶
GetMarkers(RectangleShape, Int32)¶
Returns a collection of markers based on the extent and zoomlevel that you passed in.
public Collection<Marker> GetMarkers(RectangleShape worldExtent, int currentZoomLevelId)
Parameters¶
worldExtent RectangleShape
The extent that includes all of the markers you want to serialize.
currentZoomLevelId Int32
An int value that indicates which zoomlevel the map is currently at.
Returns¶
Collection<Marker>
A collection of marker objects that will be serialized to the client.
Remarks:
The GetMarkers method creates the makrers based on the current zoomlevel, the specified extent and the special logic of the MarkerOverlay. The returned markers object will be serialized and sent to the client to create client markers.
RedrawAsync()¶
public Task RedrawAsync()
Returns¶
SetParametersAsync(ParameterView)¶
public Task SetParametersAsync(ParameterView parameters)
Parameters¶
parameters ParameterView
Returns¶
AddMarker(Marker)¶
internal void AddMarker(Marker marker)
Parameters¶
marker Marker
InitAsync()¶
protected internal Task InitAsync()
Returns¶
ReleaseAsync()¶
protected internal Task ReleaseAsync()
Returns¶
GetMarkersCore(RectangleShape, Int32)¶
Returns a collection of markers based on the extent and zoomlevel that you passed in.
protected abstract Collection<Marker> GetMarkersCore(RectangleShape worldExtent, int zoomLevel)
Parameters¶
worldExtent RectangleShape
The extent that includes all of the markers you want to serialize.
zoomLevel Int32
An int value that indicates which zoomlevel the map is currently at.
Returns¶
Collection<Marker>
A collection of Marker objects that will be serialized to the client.
Remarks:
The GetMarkersCore method allows derived classes to rewrite the logic used for dynamically creating the markers that will be serialized to the client.
OnAfterRenderAsync(Boolean)¶
protected Task OnAfterRenderAsync(bool firstRender)
Parameters¶
firstRender Boolean
Returns¶
OnInitialized()¶
protected void OnInitialized()
ShouldRender()¶
protected bool ShouldRender()