TJson

Class

type TJson = class

Properties

At[Index: Integer]: TJson;

Allows getting/setting an array element if it is actually a TJsonArray and the index is valid. Otherwise throws an exception.

NullAt[Index: Integer]: TJsonNull read;

FalseAt[Index: Integer]: TJsonFalse read;

TrueAt[Index: Integer]: TJsonTrue read;

ObjectAt[Index: Integer]: TJsonObject read;

StringAt[Index: Integer]: TJsonString read;

ArrayAt[Index: Integer]: TJsonArray read;

NumberAt[Index: Integer]: TJsonNumber read;

Returns the specified array element if it is actually a TJsonArray, the index is valid, and the type requested matches the contents.

Items[const Name: WideString]: TJson; default;

Allows getting/setting an object member if it is actually a TJsonObject and the member name is valid. Otherwise throws an exception.

NullItem[const Name: WideString]: TJsonNull; default;

FalseItem[const Name: WideString]: TJsonFalse; default;

TrueItem[const Name: WideString]: TJsonTrue; default;

ObjectItem[const Name: WideString]: TJsonObject; default;

StringItem[const Name: WideString]: TJsonString; default;

ArrayItem[const Name: WideString]: TJsonArray; default;

NumberItem[const Name: WideString]: TJsonNumber; default;

Returns the specified object member if it is actually a TJsonObject, the member name is valid, and the type requested matches the contents.

Methods

function AsBoolean: Boolean;

function AsDateTime: TDateTime;

function AsDateTimeOffset: Integer;

function AsNumber: Double;

function AsString: WideString;

Converts a JSON value to the appropriate type, if possible.

function IsArray: Boolean;

function IsBoolean: Boolean;

function IsDateTime: Boolean;

function IsLiteral: Boolean;

function IsNumber: Boolean;

function IsObject: Boolean;

function IsString: Boolean;

Used to test a JSON type before use the AsXYZ functions above, or creating instances of specific types.

function ToString(PrettyPrint: Boolean = True; UseTabChar: Boolean = False; TabSize: Integer = 2): WideString;

Returns a JSON string representing the JSON object. PrettyPrint uses whitespace to improve readability. UseTabChar and TabSize define formatting options.

function ToUtf8(PrettyPrint: Boolean = True; UseTabChar: Boolean = False; TabSize: Integer = 2): AnsiString;

Returns a UTF8 encoded JSON string. PrettyPrint uses whitespace to improve readability. UseTabChar and TabSize define formatting options.

function ToUtf8File(const FileName: String; PrettyPrint: Boolean = True; UseTabChar: Boolean = False; TabSize: Integer = 2);

Saves the UTF8 encoded JSON string to the specified file. PrettyPrint uses whitespace to improve readability. UseTabChar and TabSize define formatting options.

procedure Free;

Used to release memory and dispose of the object.

Example

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