求登录窗口源码。 一百分不够啊,一百元还差不多。:=)自己不做,你怎么提高啊。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 unit Ulogin;interfaceuses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, Buttons, ExtCtrls, StdCtrls, jpeg,inifiles,DBCtrls;type TFlogin = class(TForm) Panel2: TPanel; EdtUser: TEdit; EdtPwd: TEdit; SpeedButton2: TSpeedButton; SpeedButton1: TSpeedButton; Label7: TLabel; Label1: TLabel; Label2: TLabel; Image1: TImage; Label3: TLabel; ComboUserName: TComboBox; procedure SpeedButton2Click(Sender: TObject); procedure SpeedButton1Click(Sender: TObject); procedure EdtUserKeyPress(Sender: TObject; var Key: Char); procedure FormClose(Sender: TObject; var Action: TCloseAction); procedure FormShow(Sender: TObject); procedure EdtUserExit(Sender: TObject); procedure ComboUserNameExit(Sender: TObject); private { Private declarations } public { Public declarations } Passed : Boolean; end;/// 用户名var Flogin: TFlogin;implementationuses Umain, UlocalDM;{$R *.DFM}procedure TFlogin.SpeedButton2Click(Sender: TObject);begin //无用户名 if EdtUser.Text ='' then begin application.MessageBox(cInputUserName,'提示',mb_ok); EdtUser.SetFocus ; exit; end; //用户名非法 if not Local_data.TUser.Locate('userID',trim(EdtUser.Text),[]) then begin application.MessageBox(cNoUserName,'提示',mb_ok); EdtUser.Text :=''; EdtUser.SetFocus ; exit; end; // 该用户名的密码有误 if not (trim(Local_data.TUser.FieldByName('userpwd').AsString)=trim(EdtPwd.Text )) then begin application.MessageBox(cWrongPassword,'提示',mb_ok); EdtPwd.Text :=''; EdtPwd.SetFocus ; exit; end; FMain.UserID := Local_data.TUser.FieldByName('UserID').AsString; FMain.UserName := Local_data.TUser.FieldByName('UserName').AsString; FMain.UserType := Local_data.TUser.FieldByName('UserType').AsString; FMain.GroupID := Local_data.TUser.FieldByName('GroupID').AsString; FMain.DepartmentID := Local_data.TUser.FieldByName('DepartmentID').AsString; Passed := true; FMain.Show; Close;end;procedure TFlogin.SpeedButton1Click(Sender: TObject);begin Application.Terminate;end;procedure TFlogin.EdtUserKeyPress(Sender: TObject; var Key: Char);begin if key=#13 then SpeedButton2.Click else if key=#27 then SpeedButton1.Click ;end;procedure TFlogin.FormClose(Sender: TObject; var Action: TCloseAction);begin if not Passed then Application.Terminate;end;procedure TFlogin.FormShow(Sender: TObject);var iniFile : TIniFile; AppPath,ConString : string;begin AppPath := ExtractFilePath(Application.ExeName); iniFile := TIniFile.Create(AppPath + 'ini\info.ini'); FMain.DBserverName:=IniFile.ReadString ('local','DBserverName',''); FMain.DBUserID:=IniFile.ReadString ('local','DBUserID',''); FMain.DBUserPwd:=IniFile.ReadString ('local','DBUserPwd',''); FMain.DatabaseName:=IniFile.ReadString ('local','DatabaseName',''); FMain.ConnectTime:=IniFile.ReadString ('local','ConnectTime',''); IniFile.Free; try ConString:='Provider=SQLOLEDB.1;Password='''+FMain.DBUserPwd+''';'; ConString:=ConString+'Persist Security Info=True;User ID='''+FMain.DBUserID+''';'; ConString:=ConString+'Initial Catalog='''+FMain.DatabaseName+''';Connect Timeout='+FMain.connecttime+';'; ConString:=ConString+'Data Source='''+FMain.DBserverName+''''; //本地服务器连接设置 local_data.Connection.connected:=false; local_data.Connection.ConnectionString :=ConString; local_data.Connection.CommandTimeout := strtoint(FMain.ConnectTime); local_data.Connection.connected:=true; except Showmessage('无法打开数据库!'); end; Local_data.TUser.Open; Local_data.TUser.First; ComboUserName.Items.Clear; ComboUserName.Items.Add(''); while not Local_data.TUser.Eof do begin ComboUserName.Items.Add(Local_data.TUser.FieldByName('UserName').AsString); Local_data.TUser.Next; end; // IniFile.Free;end;procedure TFlogin.EdtUserExit(Sender: TObject);begin if Local_data.TUser.Locate('UserID',EdtUser.Text,[]) then ComboUserName.ItemIndex := ComboUserName.Items.IndexOf(Local_data.TUser.FieldByName('UserName').AsString) else ComboUserName.ItemIndex := 0;end;procedure TFlogin.ComboUserNameExit(Sender: TObject);begin if Local_data.TUser.Locate('UserName',ComboUserName.Text,[]) then EdtUser.Text := Local_data.TUser.FieldByName('UserID').AsString;end;end. 求大虾指点 Pchar和String类型之间的相互转换 你的舉手之勞,在Delphi中怎樣實現SQLServer數據庫的備份? 关于切换中英文 急!800分求《试题库管理系统》 详情见贴!! 哪里有INTRAWEB的学习资料啊 FastReport控制双面打印 WebBrowser1控件禁止获取网页提示信息 初涉DELPHI,请高手指教,谢谢了1 不知道大家注意到没有,Delphi 5.0比4.0更容易死机! DCOMConnect組件連到server端,出現 "interface not supported"错误?? 请问怎么把widestring类型的变量转化成string类型的呢?
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
Buttons, ExtCtrls, StdCtrls, jpeg,inifiles,DBCtrls;type
TFlogin = class(TForm)
Panel2: TPanel;
EdtUser: TEdit;
EdtPwd: TEdit;
SpeedButton2: TSpeedButton;
SpeedButton1: TSpeedButton;
Label7: TLabel;
Label1: TLabel;
Label2: TLabel;
Image1: TImage;
Label3: TLabel;
ComboUserName: TComboBox;
procedure SpeedButton2Click(Sender: TObject);
procedure SpeedButton1Click(Sender: TObject);
procedure EdtUserKeyPress(Sender: TObject; var Key: Char);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure FormShow(Sender: TObject);
procedure EdtUserExit(Sender: TObject);
procedure ComboUserNameExit(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
Passed : Boolean;
end;
/// 用户名
var
Flogin: TFlogin;implementationuses Umain, UlocalDM;{$R *.DFM}procedure TFlogin.SpeedButton2Click(Sender: TObject);
begin
//无用户名
if EdtUser.Text ='' then
begin
application.MessageBox(cInputUserName,'提示',mb_ok);
EdtUser.SetFocus ;
exit;
end;
//用户名非法
if not Local_data.TUser.Locate('userID',trim(EdtUser.Text),[]) then
begin
application.MessageBox(cNoUserName,'提示',mb_ok);
EdtUser.Text :='';
EdtUser.SetFocus ;
exit;
end;
// 该用户名的密码有误
if not (trim(Local_data.TUser.FieldByName('userpwd').AsString)=trim(EdtPwd.Text )) then
begin
application.MessageBox(cWrongPassword,'提示',mb_ok);
EdtPwd.Text :='';
EdtPwd.SetFocus ;
exit;
end;
FMain.UserID := Local_data.TUser.FieldByName('UserID').AsString;
FMain.UserName := Local_data.TUser.FieldByName('UserName').AsString;
FMain.UserType := Local_data.TUser.FieldByName('UserType').AsString;
FMain.GroupID := Local_data.TUser.FieldByName('GroupID').AsString;
FMain.DepartmentID := Local_data.TUser.FieldByName('DepartmentID').AsString;
Passed := true;
FMain.Show;
Close;
end;procedure TFlogin.SpeedButton1Click(Sender: TObject);
begin
Application.Terminate;
end;procedure TFlogin.EdtUserKeyPress(Sender: TObject; var Key: Char);
begin
if key=#13 then
SpeedButton2.Click
else if key=#27 then
SpeedButton1.Click ;
end;procedure TFlogin.FormClose(Sender: TObject; var Action: TCloseAction);
begin
if not Passed then
Application.Terminate;
end;procedure TFlogin.FormShow(Sender: TObject);
var
iniFile : TIniFile;
AppPath,ConString : string;
begin
AppPath := ExtractFilePath(Application.ExeName);
iniFile := TIniFile.Create(AppPath + 'ini\info.ini');
FMain.DBserverName:=IniFile.ReadString ('local','DBserverName','');
FMain.DBUserID:=IniFile.ReadString ('local','DBUserID','');
FMain.DBUserPwd:=IniFile.ReadString ('local','DBUserPwd','');
FMain.DatabaseName:=IniFile.ReadString ('local','DatabaseName','');
FMain.ConnectTime:=IniFile.ReadString ('local','ConnectTime','');
IniFile.Free;
try
ConString:='Provider=SQLOLEDB.1;Password='''+FMain.DBUserPwd+''';';
ConString:=ConString+'Persist Security Info=True;User ID='''+FMain.DBUserID+''';';
ConString:=ConString+'Initial Catalog='''+FMain.DatabaseName+''';Connect Timeout='+FMain.connecttime+';';
ConString:=ConString+'Data Source='''+FMain.DBserverName+'''';
//本地服务器连接设置
local_data.Connection.connected:=false;
local_data.Connection.ConnectionString :=ConString;
local_data.Connection.CommandTimeout := strtoint(FMain.ConnectTime);
local_data.Connection.connected:=true;
except
Showmessage('无法打开数据库!');
end; Local_data.TUser.Open;
Local_data.TUser.First;
ComboUserName.Items.Clear;
ComboUserName.Items.Add('');
while not Local_data.TUser.Eof do
begin
ComboUserName.Items.Add(Local_data.TUser.FieldByName('UserName').AsString);
Local_data.TUser.Next;
end;
// IniFile.Free;
end;procedure TFlogin.EdtUserExit(Sender: TObject);
begin
if Local_data.TUser.Locate('UserID',EdtUser.Text,[]) then
ComboUserName.ItemIndex := ComboUserName.Items.IndexOf(Local_data.TUser.FieldByName('UserName').AsString)
else
ComboUserName.ItemIndex := 0;
end;procedure TFlogin.ComboUserNameExit(Sender: TObject);
begin
if Local_data.TUser.Locate('UserName',ComboUserName.Text,[]) then
EdtUser.Text := Local_data.TUser.FieldByName('UserID').AsString;
end;end.