dymaptic.GeoBlazor.Core
dymaptic.GeoBlazor.Core.Components
VisualVariable Class
The visual variable base class.
ArcGIS Maps SDK for JavaScript
public abstract class VisualVariable : dymaptic.GeoBlazor.Core.Components.MapComponent
Inheritance System.Object 🡒 Microsoft.AspNetCore.Components.ComponentBase 🡒 MapComponent 🡒 VisualVariable
Derived
↳ ColorVariable
↳ OpacityVariable
↳ RotationVariable
↳ SizeVariable
Properties
VisualVariable.Field Property
The name of the numeric attribute field that contains the data
values used to determine the color/opacity/size/rotation of each feature.
ArcGIS Maps SDK for JavaScript
public string Field { get; set; }
Property Value
VisualVariable.LegendOptions Property
An object providing options for displaying the visual variable in
the Legend.
ArcGIS Maps SDK for JavaScript
public dymaptic.GeoBlazor.Core.Components.VisualVariableLegendOptions? LegendOptions { get; set; }
Property Value
VisualVariable.Type Property
The visual variable type.
public abstract dymaptic.GeoBlazor.Core.Enums.VisualVariableType Type { get; }
Property Value
VisualVariable.ValueExpression Property
An Arcade expression following the specification defined by the Arcade Visualization Profile. Expressions in visual variables may reference field values using the $feature profile variable and must return a number.
The values returned from this expression are the data used to drive the visualization as defined in the stops. This takes precedence over field. Therefore, this property is typically used as an alternative to field in visual variables.
public string? ValueExpression { get; set; }
Property Value
VisualVariable.ValueExpressionTitle Property
The title identifying and describing the associated Arcade expression as defined in the valueExpression property. This is displayed as the title of the corresponding visual variable in the Legend in the absence of a provided title in the legendOptions property.
public string? ValueExpressionTitle { get; set; }
Property Value
Methods
VisualVariable.GetField() Method
Asynchronously retrieve the current value of the Field property.
public System.Threading.Tasks.Task<string?> GetField();
Returns
System.Threading.Tasks.Task<System.String>
VisualVariable.GetLegendOptions() Method
Asynchronously retrieve the current value of the LegendOptions property.
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Components.VisualVariableLegendOptions?> GetLegendOptions();
Returns
System.Threading.Tasks.Task<VisualVariableLegendOptions>
VisualVariable.GetValueExpression() Method
Asynchronously retrieve the current value of the ValueExpression property.
public System.Threading.Tasks.Task<string?> GetValueExpression();
Returns
System.Threading.Tasks.Task<System.String>
VisualVariable.GetValueExpressionTitle() Method
Asynchronously retrieve the current value of the ValueExpressionTitle property.
public System.Threading.Tasks.Task<string?> GetValueExpressionTitle();
Returns
System.Threading.Tasks.Task<System.String>
VisualVariable.SetField(string) Method
Asynchronously set the value of the Field property after render.
public System.Threading.Tasks.Task SetField(string value);
Parameters
value System.String
The value to set.
Returns
VisualVariable.SetLegendOptions(VisualVariableLegendOptions) Method
Asynchronously set the value of the LegendOptions property after render.
public System.Threading.Tasks.Task SetLegendOptions(dymaptic.GeoBlazor.Core.Components.VisualVariableLegendOptions? value);
Parameters
value VisualVariableLegendOptions
The value to set.
Returns
VisualVariable.SetValueExpression(string) Method
Asynchronously set the value of the ValueExpression property after render.
public System.Threading.Tasks.Task SetValueExpression(string? value);
Parameters
value System.String
The value to set.
Returns
VisualVariable.SetValueExpressionTitle(string) Method
Asynchronously set the value of the ValueExpressionTitle property after render.
public System.Threading.Tasks.Task SetValueExpressionTitle(string? value);
Parameters
value System.String
The value to set.
Returns
VisualVariable.ValidateRequiredGeneratedChildren() Method
Validates source-generated child components.
public override void ValidateRequiredGeneratedChildren();
Implements ValidateRequiredGeneratedChildren()