GeoBlazor Pro
dymaptic.GeoBlazor.Pro
dymaptic.GeoBlazor.Pro.Components
FieldElement Class
A FieldElement form element defines how a feature layer’s field
participates in the FeatureForm.
ArcGIS Maps SDK for JavaScript
public class FieldElement : dymaptic.GeoBlazor.Pro.Components.FormElement,
dymaptic.GeoBlazor.Core.Interfaces.IElement,
dymaptic.GeoBlazor.Core.Interfaces.IElementsElement,
dymaptic.GeoBlazor.Core.Interfaces.IMapComponent
Inheritance System.Object 🡒 Microsoft.AspNetCore.Components.ComponentBase 🡒 dymaptic.GeoBlazor.Core.Components.MapComponent 🡒 FormElement 🡒 FieldElement
Implements dymaptic.GeoBlazor.Core.Interfaces.IElement, dymaptic.GeoBlazor.Core.Interfaces.IElementsElement, dymaptic.GeoBlazor.Core.Interfaces.IMapComponent
Constructors
FieldElement() Constructor
Parameterless constructor for use as a Razor Component.
public FieldElement();
FieldElement(string, string, string, string, string, string, string, Domain, FormElement, string) Constructor
Constructor for use in C# code. Use named parameters (e.g., item1: value1, item2: value2) to set properties in any order.
public FieldElement(string? fieldName=null, string? label=null, string? description=null, string? hint=null, string? editableExpression=null, string? requiredExpression=null, string? valueExpression=null, dymaptic.GeoBlazor.Core.Components.Domain? domain=null, dymaptic.GeoBlazor.Pro.Components.FormElement? input=null, string? visibilityExpression=null);
Parameters
fieldName System.String
The field name as defined by the feature layer.
ArcGIS Maps SDK for JavaScript
label System.String
A string value containing the field alias.
ArcGIS Maps SDK for JavaScript
description System.String
The element’s description providing the purpose behind it.
ArcGIS Maps SDK for JavaScript
hint System.String
Contains a hint used to help editors while editing fields.
ArcGIS Maps SDK for JavaScript
editableExpression System.String
A reference to the name of an
Arcade expression defined in the
expressionInfos of the FormTemplate.
ArcGIS Maps SDK for JavaScript
requiredExpression System.String
A reference to the name of an
Arcade expression defined in the
expressionInfos of the FormTemplate.
ArcGIS Maps SDK for JavaScript
valueExpression System.String
A reference to the name of an
Arcade expression defined in the
expressionInfos of the FormTemplate.
ArcGIS Maps SDK for JavaScript
domain dymaptic.GeoBlazor.Core.Components.Domain
The coded value domain or
range domain of the field.
ArcGIS Maps SDK for JavaScript
input FormElement
The input to use for the element.
ArcGIS Maps SDK for JavaScript
visibilityExpression System.String
A reference to the name of an
Arcade expression defined in the
expressionInfos of the FormTemplate.
ArcGIS Maps SDK for JavaScript
Properties
FieldElement.Domain Property
The coded value domain or
range domain of the field.
ArcGIS Maps SDK for JavaScript
public dymaptic.GeoBlazor.Core.Components.Domain? Domain { get; set; }
Property Value
dymaptic.GeoBlazor.Core.Components.Domain
FieldElement.EditableExpression Property
A reference to the name of an Arcade expression defined in the expressionInfos of the FormTemplate. The expression must follow the specification defined in the Form Constraint Profile. Expressions may reference field values using the $feature global input and must return either true or false.
public string? EditableExpression { get; set; }
Property Value
Remarks
A reference to the name of an Arcade expression defined in the expressionInfos of the FormTemplate. The expression must follow the specification defined in the Form Constraint Profile. Expressions may reference field values using the $feature global input and must return either true or false.
The referenced expression must be defined in the form template’s expressionInfos. It cannot be set inline within the element object.
FieldElement.FieldName Property
The field name as defined by the feature layer. Set this property to indicate which field to edit.
public string? FieldName { get; set; }
Property Value
FieldElement.Hint Property
Contains a hint used to help editors while editing fields. Set this as a temporary placeholder for text/number inputs in either TextAreaInput or TextBoxInput.
public string? Hint { get; set; }
Property Value
FieldElement.Input Property
The input to use for the element.
ArcGIS Maps SDK for JavaScript
public dymaptic.GeoBlazor.Pro.Components.FormElement? Input { get; set; }
Property Value
FieldElement.RequiredExpression Property
A reference to the name of an Arcade expression defined in the expressionInfos of the FormTemplate. The expression must follow the specification defined in the Form Constraint Profile. Expressions may reference field values using the $feature global input and must return either true or false.
When this expression evaluates to true and the field value is required, the element must have a valid value in order for the feature to be created or edited. When the expression evaluates to false, the element is not required. If no expression is provided, the required behavior is defined via the required property.
If the referenced field is non-nullable, the requiredExpression is ignored and the element is always required.
public string? RequiredExpression { get; set; }
Property Value
Remarks
The referenced expression must be defined in the form template’s expressionInfos. It cannot be set inline within the element object.
FieldElement.Type Property
Indicates the type of form element.
public override string Type { get; }
Property Value
FieldElement.ValueExpression Property
A reference to the name of an
Arcade expression defined in the
expressionInfos of the FormTemplate.
ArcGIS Maps SDK for JavaScript
public string? ValueExpression { get; set; }
Property Value
Methods
FieldElement.GetDomain() Method
Asynchronously retrieve the current value of the Domain property.
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Components.Domain?> GetDomain();
Returns
System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Components.Domain>
FieldElement.GetEditableExpression() Method
Asynchronously retrieve the current value of the EditableExpression property.
public System.Threading.Tasks.Task<string?> GetEditableExpression();
Returns
System.Threading.Tasks.Task<System.String>
FieldElement.GetFieldName() Method
Asynchronously retrieve the current value of the FieldName property.
public System.Threading.Tasks.Task<string?> GetFieldName();
Returns
System.Threading.Tasks.Task<System.String>
FieldElement.GetHint() Method
Asynchronously retrieve the current value of the Hint property.
public System.Threading.Tasks.Task<string?> GetHint();
Returns
System.Threading.Tasks.Task<System.String>
FieldElement.GetInput() Method
Asynchronously retrieve the current value of the Input property.
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Pro.Components.FormElement?> GetInput();
Returns
System.Threading.Tasks.Task<FormElement>
FieldElement.GetRequiredExpression() Method
Asynchronously retrieve the current value of the RequiredExpression property.
public System.Threading.Tasks.Task<string?> GetRequiredExpression();
Returns
System.Threading.Tasks.Task<System.String>
FieldElement.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>
FieldElement.SetDomain(Domain) Method
Asynchronously set the value of the Domain property after render.
public System.Threading.Tasks.Task SetDomain(dymaptic.GeoBlazor.Core.Components.Domain? value);
Parameters
value dymaptic.GeoBlazor.Core.Components.Domain
The value to set.
Returns
FieldElement.SetEditableExpression(string) Method
Asynchronously set the value of the EditableExpression property after render.
public System.Threading.Tasks.Task SetEditableExpression(string? value);
Parameters
value System.String
The value to set.
Returns
FieldElement.SetFieldName(string) Method
Asynchronously set the value of the FieldName property after render.
public System.Threading.Tasks.Task SetFieldName(string? value);
Parameters
value System.String
The value to set.
Returns
FieldElement.SetHint(string) Method
Asynchronously set the value of the Hint property after render.
public System.Threading.Tasks.Task SetHint(string? value);
Parameters
value System.String
The value to set.
Returns
FieldElement.SetInput(FormElement) Method
Asynchronously set the value of the Input property after render.
public System.Threading.Tasks.Task SetInput(dymaptic.GeoBlazor.Pro.Components.FormElement? value);
Parameters
value FormElement
The value to set.
Returns
FieldElement.SetRequiredExpression(string) Method
Asynchronously set the value of the RequiredExpression property after render.
public System.Threading.Tasks.Task SetRequiredExpression(string? value);
Parameters
value System.String
The value to set.
Returns
FieldElement.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
FieldElement.ValidateRequiredGeneratedChildren() Method
Validates source-generated child components.
public override void ValidateRequiredGeneratedChildren();
Implements ValidateRequiredGeneratedChildren()