//对登陆进行判断，如果用户和密码正确，进入主界面，若其中一个错误，则弹出相应错误提示
private void button1_Click(object sender, EventArgs e)
{
Accessor accessor = Accessor.Instance;
//在数据库中查询输入用户名
IList<Users> s = accessor.GetUsersByFirstname(textBox1.Text);
//判断数据库中用户名是否存在
if (s.Count != 0)
//如果用户名存在，则判断密码是否正确
if (s[0].password.ToString() == textBox2.Text)
{
//密码正确，将原窗口隐藏，显示新的窗口
MainForm Reg = new MainForm(this.textBox1.Text);
this.Hide();
Reg.Owner = this;
//让新建的窗口不在任务栏显示并显示新窗口
Reg.ShowDialog();
//新建的窗口关闭后，再使原窗口可见
this.Show();
}
else
{
this.errorProvider1.SetError(textBox2, "输入密码错误");
}
else
{
this.errorProvider1.SetError(textBox1, "输入用户名不存在");
}
}
private void SignInB_Click(object sender, EventArgs e)
{
int f = 0;
foreach (var user in domainData)
{
if (user.Login == LoginBox.Text && user.Password == PasswordBox.Text.GetHashCode())
{
f = 1;
MainForm form = new MainForm(this.LoginBox.Text);
form.ShowDialog();
this.Hide();
}
}
if (f == 0)
{
MessageBox.Show("Неверный логин или пароль");
}
else
{
Application.Exit();
}
}
private void btnLogin_Click(object sender, EventArgs e)
{
IList <ManagerUser> managerUserList = new List <ManagerUser>();
//IManagerUserManager managerUserManager = new ManagerUserManager(); /*IManagerUserManager用于处理逻辑，界面可不使用*/
IManagerUserStorage managerUserStorage = new ManagerUserStorage();
QueryManagerUser queryManagerUser = new QueryManagerUser();
if (txtUserName.Text.Trim() == "" || txtUserPassword.Text.Trim() == "")
{
MessageBox.Show("请输入用户名和密码");
}
else
{
queryManagerUser.UserID = null; /*对应数据库中的查询存储过程*/
queryManagerUser.UserName = txtUserName.Text.Trim();
queryManagerUser.UserPassword = txtUserPassword.Text.Trim();
queryManagerUser.UserSort = null;
/*managerUserList = managerUserManager.GetManagerUserList( //对应上述的managerUserManager
* managerUserStorage,
* queryManagerUser);*/
managerUserList = managerUserStorage.ListManagerUser( /*调用managerUserList，将集合（数组）取到*/
queryManagerUser);
if (managerUserList.Count == 1) /*一条记录符合，跳转到主界面*/
{
this.Hide();
MainForm mainFrom = new MainForm();
mainFrom.ShowDialog();
}
else
{
MessageBox.Show("账号或密码不正确");
}
}
}