我写了如下一段测试代码:
procedure TForm1.FormCreate(Sender: TObject);
var
Edit1:string;
begin
if (form1.FindComponent(Edit1)<>nil) then
begin
if (form1.FindComponent(Edit1) is TEdit) then
(form1.FindComponent(Edit1) as TEdit).Enabled :=false;
end;
end;
为何EDIT1的ENABLED属性不会变FALSE?
procedure TForm1.FormCreate(Sender: TObject);
var
Edit1:string;
begin
if (form1.FindComponent(Edit1)<>nil) then
begin
if (form1.FindComponent(Edit1) is TEdit) then
(form1.FindComponent(Edit1) as TEdit).Enabled :=false;
end;
end;
为何EDIT1的ENABLED属性不会变FALSE?
var edit1 :string改一下改成var t:string 试一下
procedure TForm1.Button1Click(Sender: TObject);
var
i: Integer;
const
NamePrefix = 'MyEdit';
begin
for i := 1 to 20 dobegin
TEdit.Create(Self).Name := NamePrefix + IntToStr(i);
with TEdit(FindComponent(NamePrefix + IntToStr(i))) do
begin
Left := 10;
Top := i * 20;
Parent := self;
end;
end;
end;
var
Edit1:string;
begin
edit1:='edit1'
if (form1.FindComponent(Edit1)<>nil) then
begin
if (form1.FindComponent(Edit1) is TEdit) then
(form1.FindComponent(Edit1) as TEdit).Enabled :=false;
end;
end;