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    PropIsType

    Check the type of a published property.

    Declaration

    Source position: typinfo.pp line 1226

    function PropIsType(Instance: TObject; const PropName: string; 
                   TypeKind: TTypeKind) : Boolean;

    function PropIsType(AClass: TClass; const PropName: string; 
                   TypeKind: TTypeKind) : Boolean;

    Description

    PropIsType returns True if the property with name PropName has type TypeKind. It returns False otherwise. The class to be examined can be specified in one of two ways:

    AClass
    A class pointer.
    Instance
    An instance of the class.

    Errors

    No checks are done to ensure Instance or AClass are valid pointers.Specifying an invalid property name in PropName will result in an EPropertyError exception.

    See also

    Name Description
    IsPublishedProp Check whether a published property exists.
    IsStoredProp Check whether a property is stored.
    PropType Return the type of a property.

    Example

    program example16;

{ This program demonstrates the PropIsType function }

{$mode objfpc}

uses rttiobj,typinfo;

Var
  O : TMyTestObject;

begin
  O:=TMyTestObject.Create;
  Writeln('Property tests    : ');
  Write('PropIsType(O,BooleanField,tkBool)     : ');
  Writeln(PropIsType(O,'BooleanField',tkBool));
  Write('PropIsType(Class,BooleanField,tkBool) : ');
  Writeln(PropIsType(O.ClassType,'BooleanField',tkBool));
  Write('PropIsType(O,ByteField,tkString)      : ');
  Writeln(PropisType(O,'ByteField',tkString));
  Write('PropIsType(Class,ByteField,tkString)  : ');
  Writeln(PropIsType(O.ClassType,'ByteField',tkString));
  O.Free;
end.