TJElement Class
Abstract base class for all JSON elements in the JSON Document Object Model.
Remarks
TJElement serves as the root of the JSON DOM class hierarchy. It provides type checking methods (IsArray, IsObject, etc.), type casting methods (AsArray, AsObject, etc.), and value access methods (AsBoolean, AsString, etc.) for working with JSON elements in a type-safe manner.
Concrete subclasses include TJArray, TJObject, TJPrimitive, and TJNull.
Syntax
Unit: Bcl.Json.Classes
TJElement = class(TObject);Methods
| Name | Description |
|---|---|
| AsArray | Casts this element to TJArray. |
| AsBoolean | Returns the value of this element as a Boolean. |
| AsDouble | Returns the value of this element as a Double. |
| AsInt64 | Returns the value of this element as an Int64. |
| AsInteger | Returns the value of this element as an Integer. |
| AsNull | Casts this element to TJNull. |
| AsObject | Casts this element to TJObject. |
| AsPrimitive | Casts this element to TJPrimitive. |
| AsString | Returns the value of this element as a string. |
| Clone | Creates a deep copy of this JSON element. |
| FromJSONValue | Creates a TJElement from a System.Json.TJSONValue instance. |
| IsArray | Returns True if this element is a TJArray. |
| IsBoolean | Returns True if this element holds a Boolean value. |
| IsDouble | Returns True if this element holds a Double value. |
| IsInt64 | Returns True if this element holds an Int64 value. |
| IsInteger | Returns True if this element holds an Integer value. |
| IsNull | Returns True if this element is a TJNull. |
| IsObject | Returns True if this element is a TJObject. |
| IsPrimitive | Returns True if this element is a TJPrimitive. |
| IsString | Returns True if this element holds a string value. |
| ToJSONValue | Converts this JSON element to a System.Json.TJSONValue instance. |