private void btnLogin_Click(object sender, EventArgs e)
{
//选中匿名登录，直接匿名身份登录，否则，判断用户名和密码是否正确
if (this.checkBox1.Checked == false)
{
#region 数据验证
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("请填写用户名!", "登录提示");
this.txtLoginId.Focus();
return;
}
if (!DataValidate.IsInteger(this.txtLoginId.Text.Trim()))
{
MessageBox.Show("用户名必须为正整数!", "登录提示");
this.txtLoginId.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("请填写密码!", "登录提示");
this.txtLoginPwd.Focus();
return;
}
#endregion
//封装对象
SysAdmin objAdmin = new SysAdmin()
{
LoginId = Convert.ToInt32(this.txtLoginId.Text.Trim()),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
try
{
//调用登陆数据库方法，进行账号验证
objAdmin = objAdminService.AdminLogin(objAdmin);
if (objAdmin == null)
{
MessageBox.Show("用户名或密码不正确!", "登录提示");
return;
}
else
{
this.DialogResult = DialogResult.OK;
this.Close();
}
}
catch (Exception ex)
{
MessageBox.Show("登陆异常，原因：" + ex.Message, "登录提示");
return;
}
}
else
{
this.DialogResult = DialogResult.OK;
}
}
/// <summary>
/// 根据登录账号和密码登录
/// </summary>
/// <param name="objAdmin"></param>
/// <returns></returns>
public SysAdmin AdminLogin(SysAdmin objAdmin)
{
objAdmin = objAdminService.AdminLogin(objAdmin);
if (objAdmin != null)
{
//将登录对象保存Session
HttpContext.Current.Session["CurrentAdmin"] = objAdmin;
}
return(objAdmin);
}
/// <summary>
/// 根据用户账号和密码登录
/// </summary>
/// <param name="objAdmin"></param>
/// <returns></returns>
public string AdminLogin(SysAdmin objAdmin)
{
objAdmin = objAdminService.AdminLogin(objAdmin);
if (objAdmin != null)
{
HttpContext.Current.Session["CurrentAdmin"] = objAdmin;
return(objAdmin.AdminName);
}
else
{
return(null);
}
}
public SysAdminInfo AdminLogin(SysAdmin admin)
{
var adminInfo = new SysAdminInfo();
var service = new SysAdminService();
adminInfo = service.AdminLogin(admin);
if (admin != null)
{
HttpContext.Current.Session["CurrentAdmin"] = admin;
return(adminInfo);
}
return(null);
}
//登录
private void btnLogin_Click(object sender, EventArgs e)
{
//数据验证
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("Id is empty!", "information");
this.txtLoginId.Focus();
return;
}
if (!Common.DataValidate.IsInteger(this.txtLoginId.Text.Trim()))
{
MessageBox.Show("Id must be integer!", "information");
this.txtLoginId.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("Password ie empty!", "information");
this.txtLoginPwd.Focus();
return;
}
//登录账号和密码不能包含危险字符（<>,)
//封装对象
SysAdmin objAdmin = new SysAdmin()
{
LoginId = Convert.ToInt32(this.txtLoginId.Text.Trim()),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
//和后台交互
try
{
Program.currentAdmin = objSysAdminService.AdminLogin(objAdmin);
if (Program.currentAdmin != null)
{
this.DialogResult = DialogResult.OK;
this.Close();
}
else
{
MessageBox.Show("ID or Password is wrong", "information");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "communicate with data base exception");
}
//处理交互结果（需要保存数据、需要返回值等）
}
private void btnLogin_Click(object sender, EventArgs e)
{
//【1】数据验证
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录账号！", "登录提示");
this.txtLoginId.Focus();
return;
}
//if (!Common.DataValidate.VerificationIsDigital(this.txtLoginId.Text.Trim()))
//{
// MessageBox.Show("登录账号必须为正整数!", "提示信息");
// this.txtLoginId.Focus();
// return;
//}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录密码！", "登录提示");
this.txtLoginPwd.Focus();
return;
}
//[2]封装对象
SysAdmin objAdmin = new SysAdmin()
{
LoginId = this.txtLoginId.Text.Trim(),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
//[3]和后台交互，判断登录信息是否正确
try
{
objAdmin = objAdminService.AdminLogin(objAdmin);
if (objAdmin != null)
{
//保存登录信息
Program.objCurrentAdmin = objAdmin;
//设置登录窗体的返回值
this.DialogResult = DialogResult.OK;
//关闭窗体
this.Close();
}
else
{
MessageBox.Show("登录账号或密码有误！", "登录提示");
}
}
catch (Exception ex)
{
MessageBox.Show("数据访问出现异常，登录失败！具体原因：" + ex.Message);
}
}
//Login
private void btnLogin_Click(object sender, EventArgs e)
{
// data validation
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("Please fill in login Id", "Warning");
this.txtLoginId.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("Please fill in login password", "Warning");
this.txtLoginPwd.Focus();
return;
}
if (!DataValidation.IsInteger(this.txtLoginId.Text.Trim()))
{
MessageBox.Show("The login Id must be an integer", "Warning");
this.txtLoginId.Focus();
return;
}
// instance of SysAdmin
SysAdmin objAdmin = new SysAdmin()
{
LoginId = Convert.ToInt32(this.txtLoginId.Text.Trim()),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
// database connection
Program.currentAdmin = objAdminService.AdminLogin(objAdmin);
try
{
if (Program.currentAdmin != null)
{
this.DialogResult = DialogResult.OK;
this.Close();
}
else
{
MessageBox.Show("LoginId or Password is incorrect", "Warning");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Database connection error");
}
}
/// <summary>
/// 用户登录，返回登录实体
/// </summary>
/// <param name="objAdmin"></param>
/// <returns></returns>
public SysAdmin AdminLogin(SysAdmin objAdmin)
{
objAdmin = objAdminService.AdminLogin(objAdmin);
if (objAdmin != null && objAdmin.AdminStatus == 1)
{
LoginLogs loginLog = new LoginLogs()
{
LoginId = objAdmin.LoginId,
SPName = objAdmin.AdminName,
ServerName = Dns.GetHostName()
};
objAdmin.LoginLogId = objAdminService.WriteLoginLog(loginLog);
}
return(objAdmin);
}
//登录
private void btnLogin_Click(object sender, EventArgs e)
{
//【1】数据验证
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录账号！", "登录提示");
this.txtLoginId.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录密码！", "登录提示");
this.txtLoginPwd.Focus();
return;
}
//【2】封装对象（实际封装的是用户登录账号和密码）
SysAdmin objAdmin = new SysAdmin()
{
LoginId = Convert.ToInt32(this.txtLoginId.Text.Trim()),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
//【3】和后台交互，判断登录信息是否正确
try
{
objAdmin = objAdminService.AdminLogin(objAdmin);
if (objAdmin != null)//如果登录成功
{
//保存登录信息
Program.objCurrentAdmin = objAdmin;
//设置登录窗体的返回值
this.DialogResult = DialogResult.OK;
//关闭窗体
this.Close();
}
else
{
MessageBox.Show("登录账号或密码有误！", "登录提示");
}
}
catch (Exception ex)
{
MessageBox.Show("数据访问出现异常，登录失败！具体原因：" + ex.Message);
}
}
//登录
private void btnLogin_Click(object sender, EventArgs e)
{
//【1】数据验证
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("Please input your account!", "Login information");
this.txtLoginId.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("Please input your password!", "Login information");
this.txtLoginPwd.Focus();
return;
}
//【2】封装对象
SysAdmin objAdmin = new SysAdmin()
{
LoginId = Convert.ToInt32(this.txtLoginId.Text.Trim()),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
//【3】 和后台交互，判断登录信息是否正确
try
{
objAdmin = objAdminService.AdminLogin(objAdmin);
if (objAdmin != null)//如果登录成功
{
//保存登录信息
Program.objCurrentAdmin = objAdmin;
//设置登录窗体的返回值
this.DialogResult = DialogResult.OK;
//关闭窗体
this.Close();
}
else
{
MessageBox.Show("Account or Password is Wrong!", "Login information");
};
}
catch (Exception ex)
{
MessageBox.Show("Access data base exception, login failed! The reason is: " + ex.Message);
}
}
/// <summary>
/// 管理员登录
/// </summary>
/// <param name="admins"></param>
/// <returns></returns>
public SysAdmins AdminLogin(SysAdmins admins)
{
admins = adminService.AdminLogin(admins);
if (admins != null && admins.AdminStatus == 1)
{
//登录成功日志记录
LoginLogs logInfo = new LoginLogs
{
LoginId = admins.LoginId,
SPName = admins.AdminName,
ServerName = Dns.GetHostName()
};
var logId = adminService.WriteToLoginLog(logInfo);
admins.LogId = logId;//为退出做准备
}
return(admins);
}
private void BtnLogin_Click(object sender, EventArgs e)
{
if (this.txtLoginAccount.Text.Trim().Length == 0)
{
MessageBox.Show("登录账号不能为空!", "提示信息!");
this.txtLoginAccount.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("登录密码不能为空!", "提示信息!");
this.txtLoginPwd.Focus();
return;
}
SysAdmin admin = new SysAdmin
{
LoginPwd = this.txtLoginPwd.Text,
AdminName = this.txtLoginAccount.Text
};
admin = adminService.AdminLogin(admin);
try
{
if (admin == null)
{
MessageBox.Show("账号或密码错误!", "提示信息!");
return;
}
else
{
Program.adminLogin = admin;
this.DialogResult = DialogResult.OK;
this.Close();
}
}
catch (Exception ex)
{
MessageBox.Show("数据访问出现异常，具体原因:" + ex.Message);
}
}
public SysAdmins AdminLogin(SysAdmins sysAdmin)
{
return(adminService.AdminLogin(sysAdmin));
}
/// <summary>
/// 管理员登录
/// </summary>
/// <param name="objAdmin"></param>
/// <returns></returns>
public SysAdmin AdminLogin(SysAdmin objAdmin)
{
return(objAdminService.AdminLogin(objAdmin));
}
//用户登录
private void btnLogin_Click(object sender, EventArgs e)
{
//int a = 100;
//Console.WriteLine(a);
//SysAdmin admin1 = new SysAdmin();
//Console.WriteLine(admin1.GetType().ToString());
//return;
//【1】数据验证
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录账号！", "登录提示");
this.txtLoginId.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录密码！", "登录提示");
this.txtLoginPwd.Focus();
return;
}
//验证登录账号必须是数字（可以使用正则表达式，只需要了解，会用即可，如果感兴趣，可以自己研究怎么写）
//【2】对象封装（把用户输入的数据封装为对象，用对象属性承载数据）
admin = new SysAdmin
{
LoginId = Convert.ToInt32(this.txtLoginId.Text.Trim()),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
//【3】调用后台数据访问方法验证
try
{
admin = adminService.AdminLogin(admin);
}
catch (Exception ex)
{
MessageBox.Show("用户登录发生异常！具体错误：" + ex.Message, "登录错误");
return;
}
if (admin != null)//如果账号和密码是正确的
{
//【1】验证账号状态是否允许
if (admin.AdminStatus == 1)
{
//【2】把当前登录用户的信息保存起来（后面有可能用到）
Program.currentAdmin = admin;
//【3】如果有权限，那么可以在这个根据登录信息查询权限...(如果数据访问类中写了，此处就不要写，建议大家写到这个地方)
//【4】判断用户是否需要记住密码和登录账号
if (this.ckbSavePwd.Checked)
{
admin.LastLoginTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm");
}
else //如果没有选中，有两种方式：1.可以删除保存的文件 2.在当前日期前面减去大于10的天数
{
//比如是2020-12-30
admin.LastLoginTime = DateTime.Now.AddDays(-11).ToString("yyyy-MM-dd HH:mm");
}
adminService.SaveLoginInfo(admin);//保存登录信息
//【5】写入登录日志...(什么时候登录的，登录的IP地址是什么，登录名是谁...我们在课程8 就有讲解...)
//【6】关闭登录窗体
this.DialogResult = DialogResult.OK;
this.Close();
}
else
{
MessageBox.Show("当前用户为禁止登录状态，请联系管理员！", "登录提示");
}
}
else
{
MessageBox.Show("用户名或密码错误！", "登录提示");
}
}