DelphiXERtti单元深入解析：TRttiContext的应用与实践

uses
System.Rtti;
//TRttiContext.GetTypes
procedure TForm1.Button1Click(Sender: TObject);
var
ctx: TRttiContext;
t: TRttiType;
begin
Memo1.Clear;
for t in ctx.GetTypes do
Memo1.Lines.Add(t.Name);
end;
//获取 TButton 类的方法
procedure TForm1.Button2Click(Sender: TObject);
var
ctx: TRttiContext;
t: TRttiType;
m: TRttiMethod;
begin
Memo1.Clear;
t := ctx.GetType(TButton);
//for m in t.GetMethods do Memo1.Lines.Add(m.Name);
for m in t.GetMethods do
Memo1.Lines.Add(m.ToString);
end;
//获取 TButton 类的属性
procedure TForm1.Button3Click(Sender: TObject);
var
ctx: TRttiContext;
t: TRttiType;
p: TRttiProperty;
begin
Memo1.Clear;
t := ctx.GetType(TButton);
//for p in t.GetProperties do Memo1.Lines.Add(p.Name);
for p in t.GetProperties do
Memo1.Lines.Add(p.ToString);
end;
//获取 TButton 类的字段
procedure TForm1.Button4Click(Sender: TObject);
var
ctx: TRttiContext;
t: TRttiType;
f: TRttiField;
begin
Memo1.Clear;
t := ctx.GetType(TButton);
//for f in t.GetFields do Memo1.Lines.Add(f.Name);
for f in t.GetFields do
Memo1.Lines.Add(f.ToString);
end;
procedure TForm1.Button5Click(Sender: TObject);
var
ctx: TRttiContext;
t: TRttiType;
ms: TArray;
ps: TArray;
fs: TArray;
begin
Memo1.Clear;
t := ctx.GetType(TButton);
ms := t.GetMethods;
ps := t.GetProperties;
fs := t.GetFields;
Memo1.Lines.Add(Format(‘%s 类共有 %d 个方法‘, [t.Name, Length(ms)]));
Memo1.Lines.Add(Format(‘%s 类共有 %d 个属性‘, [t.Name, Length(ps)]));
Memo1.Lines.Add(Format(‘%s 类共有 %d 个字段‘, [t.Name, Length(fs)]));
end;