GetStrProp
Return the value of a string property.
Declaration
Source position: typinfo.pp line 905
function GetStrProp(Instance: TObject; PropInfo: PPropInfo) : Ansistring;
function GetStrProp(Instance: TObject; const PropName: string) : string;
Description
GetStrProp returns the value of the string property described by PropInfo or with name PropName for object Instance.
Errors
No checking is done whether Instance is non-nil, or whether PropInfo describes a valid string property of Instance. Specifying an invalid property name in PropName will result in an EPropertyError exception.
See also
| Name | Description |
|---|---|
| GetFloatProp | Return value of floating point property |
| GetInt64Prop | return value of an Int64 property |
| GetMethodProp | Return value of a method property |
| GetOrdProp | Get the value of an ordinal property |
| SetStrProp | Set value of a string property |
| SetWideStrProp | Set a widestring property |
Example
program example3;
{ This program demonstrates the GetStrProp function }
{$mode objfpc}
uses rttiobj,typinfo;
Var
O : TMyTestObject;
PI : PPropInfo;
begin
O:=TMyTestObject.Create;
PI:=GetPropInfo(O,'AnsiStringField');
Writeln('String property : ');
Writeln('Value : ',O.AnsiStringField);
Writeln('Get (name) : ',GetStrProp(O,'AnsiStringField'));
Writeln('Get (propinfo) : ',GetStrProp(O,PI));
SetStrProp(O,'AnsiStringField','First');
Writeln('Set (name,''First'') : ',O.AnsiStringField);
SetStrProp(O,PI,'Second');
Writeln('Set (propinfo,''Second'') : ',O.AnsiStringField);
O.Free;
end.