Unit 'fpjson'	Package
[Overview][Constants][Types][Classes][Procedures and functions][Index]	[#fcl]

TJSONData.IsNull

Is the data a null value ?

Declaration

Source position: fpjson.pp line 194

public property TJSONData.IsNull : Boolean read GetIsNull;

IsNull is True only for JSONType=jtNull, i.e. for a TJSONNull instance. In all other cases, it is False. This value cannot be set.

TJSONType		Possible types of JSON data.
JSONType		The native JSON data type represented by this object.
TJSONNull		Class to represent boolean JSON data.
AsFloat		Access the raw JSON value as a float.
Value		The value of this data object as a variant.
AsInt64		Access the raw JSON value as an 64-bit integer.
AsString		Access the raw JSON value as a string.
AsInteger		Access the raw JSON value as an 32-bit integer.
AsBoolean		Access the raw JSON value as a boolean.
AsJSON		Return a JSON representation of the value.