cmycust.txt

Delphi 7 数据库编程(Powerpoint 幻灯片格式)

CMyCust.pas程序清单

Unit CMyCust;

interface

uses
  Windows, Messages, Classes, SysUtils, Graphics, Controls, StdCtrls, Forms,
  Dialogs, DBCtrls, DB, DBGrids, DBTables, Grids, ExtCtrls;

type
  TForm2 = class(TForm)
    CustomerTableCustNum: TFloatField;
    CustomerTableLastName: TStringField;
    CustomerTableFirstName: TStringField;
    DBGrid1: TDBGrid;
    DBNavigator: TDBNavigator;
    Panel1: TPanel;
    DataSource1: TDataSource;
    Panel2: TPanel;
    CustomerTable: TTable;
    chkVisible: TCheckBox;
    chkCenter: TCheckBox;
    cmdExit: TButton;
    cmdCustomerNumber: TButton;
    lblValue: TLabel;
    txtUpdateLastName: TEdit;
    cmdUpdateLastName: TButton;
    procedure FormCreate(Sender: TObject);
    procedure cmdExitClick(Sender: TObject);
    procedure chkVisibleClick(Sender: TObject);
    procedure chkCenterClick(Sender: TObject);
    procedure cmdCustomerNumberClick(Sender: TObject);
    procedure cmdUpdateLastNameClick(Sender: TObject);
  private
    { private declarations }
  public
    { public declarations }
  end;

var
  Form2: TForm2;
  {MyVariableString:String;}
implementation

{$R *.DFM}

procedure TForm2.FormCreate(Sender: TObject);
begin
  CustomerTable.Open;
end;

procedure TForm2.cmdExitClick(Sender: TObject);
begin
Application.Terminate;
end;

procedure TForm2.chkVisibleClick(Sender: TObject);
begin
if(chkVisible.Checked=True)Then
   CustomerTableCustNum.Visible:=True
else
   CustomerTableCustNum.Visible:=False;
end;

procedure TForm2.chkCenterClick(Sender: TObject);
begin
if(chkCenter.checked=True)Then
   CustomerTableLastName.Alignment:=taCenter
else
   CustomerTableLastName.Alignment:=taLeftJustify;
end;

procedure TForm2.cmdCustomerNumberClick(Sender: TObject);

var
   MyVariableString:String;

begin
   
{
lblValue.Caption:=
  'Customer Number:'+
  CustomerTableCustNum.AsString;
}

MyVariableString:=CustomerTableCustNum.AsString;
lblValue.Caption:=
  'Customer Number:'+
  MyVariableString;

end;

procedure TForm2.cmdUpdateLastNameClick(Sender: TObject);
begin
CustomerTable.Edit;
CustomerTableLastName.AsString:=txtUpdateLastName.Text;
CustomerTable.Post;
end;

end.