layout: default title: CSVLayer parent: Core Classes —
dymaptic.GeoBlazor.Core
dymaptic.GeoBlazor.Core.Components.Layers
CSVLayer Class
The CSVLayer is a point layer based on a CSV file (.csv, .txt). CSV is a plain-text file format used to
represent tabular data, including geographic point features (latitude, longitude). Typically the latitude
coordinate is the Y value, and the longitude coordinate is the X value. The X, Y coordinates must be stored
in SpatialReference.WGS84 in csv feed.
ArcGIS Maps SDK for JavaScript
public class CSVLayer : dymaptic.GeoBlazor.Core.Components.Layers.Layer,
dymaptic.GeoBlazor.Core.Interfaces.IFeatureReductionLayer
Inheritance System.Object 🡒 Microsoft.AspNetCore.Components.ComponentBase 🡒 MapComponent 🡒 Layer 🡒 CSVLayer
Implements IFeatureReductionLayer
Constructors
CSVLayer() Constructor
Parameterless constructor for use as a razor component
public CSVLayer();
CSVLayer(string, string, string, Nullable, Nullable, Nullable, Nullable, PopupTemplate) Constructor
Constructor for use in code
public CSVLayer(string url, string? title=null, string? copyright=null, System.Nullable<double> opacity=null, System.Nullable<bool> visible=null, System.Nullable<dymaptic.GeoBlazor.Core.Components.Layers.ListMode> listMode=null, System.Nullable<dymaptic.GeoBlazor.Core.Components.Layers.BlendMode> blendMode=null, dymaptic.GeoBlazor.Core.Components.Popups.PopupTemplate? popupTemplate=null);
Parameters
url System.String
The url for the CSV source data.
title System.String
The title of the layer used to identify it in places such as the Legend and LayerList widgets.
copyright System.String
A copyright string to identify ownership of the data.
opacity System.Nullable<System.Double>
The opacity of the layer.
visible System.Nullable<System.Boolean>
Indicates if the layer is visible in the View. When false, the layer may still be added to a Map instance that is
referenced in a view, but its features will not be visible in the view.
listMode System.Nullable<ListMode>
Indicates how the layer should display in the LayerList widget. The possible values are listed below.
blendMode System.Nullable<BlendMode>
Blend modes are used to blend layers together to create an interesting effect in a layer, or even to produce what
seems like a new layer.
popupTemplate PopupTemplate
A PopupTemplate allows you to specify the content that appears in the popup dialog window.
Properties
CSVLayer.BlendMode Property
Blend modes are used to blend layers together to create an interesting effect in a layer, or even to produce what
seems like a new layer.
public System.Nullable<dymaptic.GeoBlazor.Core.Components.Layers.BlendMode> BlendMode { get; set; }
Property Value
CSVLayer.Copyright Property
A copyright string to identify ownership of the data.
public string? Copyright { get; set; }
Property Value
CSVLayer.Delimiter Property
The column delimiter. Default is comma (,).
public System.Nullable<dymaptic.GeoBlazor.Core.Components.Layers.CSVDelimiter> Delimiter { get; set; }
Property Value
CSVLayer.DisplayField Property
The name of the layer’s primary display field. The value of this property matches the name of one of the fields of the layer.
public string? DisplayField { get; set; }
Property Value
CSVLayer.LayerType Property
Used internally to identify the sub type of Layer
public override string LayerType { get; }
Property Value
CSVLayer.PopupTemplate Property
The PopupTemplate for the layer.
public dymaptic.GeoBlazor.Core.Components.Popups.PopupTemplate? PopupTemplate { get; set; }
Property Value
CSVLayer.Renderer Property
The renderer assigned to the layer. The renderer defines how to visualize each feature in the layer. Depending on the renderer type, features may be visualized with the same symbol, or with varying symbols based on the values of provided attribute fields or functions.
public dymaptic.GeoBlazor.Core.Components.Renderers.Renderer? Renderer { get; set; }
Property Value
CSVLayer.Url Property
The url for the GeoRSS source data.
public string? Url { get; set; }
Property Value
Methods
CSVLayer.RegisterChildComponent(MapComponent) Method
Called from dymaptic.GeoBlazor.Core.Components.MapComponent.OnInitializedAsync 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
Exceptions
InvalidChildElementException
Throws if the current child is not a valid sub-component to the parent.
Remarks
This method is an implementation detail and should not be called directly by consumers. In future versions, this may be changed to an internal method. If you see no other way to register a child component, please open an issue on GitHub.
CSVLayer.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
Remarks
This method is an implementation detail and should not be called directly by consumers. In future versions, this may be changed to an internal method.