问题:
form2能关闭form1,
但为什么form3关不了form2?
怎么才能实现form3关闭form2?
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls,Unit2;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
Form2: TForm2;
begin
Form2:= TForm2.Create(self);
form2.Show;
end;
end.
///////////////////////////////////
unit Unit2;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls,Unit3;
type
TForm2 = class(TForm)
Button1: TButton;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
end;
var
Form2: TForm2;
implementation
uses
Unit1;
{$R *.dfm}
procedure TForm2.Button1Click(Sender: TObject);
var
Form3: TForm3;
begin
Form3:= TForm3.Create(self);
fo
我在出库窗口写了个方法：ADOQueryBill 的bNum 字段的OnValidate方法 实现的是出库数量不能大于入库的数量，否则就重新输入数量，以下是我的代码：
procedure TFrmStockOut.ADOQueryBillbNum_Validate(Sender: TFie ......
