//登录
private void btn_enter_Click(object sender, System.EventArgs e)
{
bool isLogin = false;
if (SubjectRegister.IsUserNameUsed(userCombox.Text) == false)
{
MessageBox.Show(this, "数据库中找不到这样的账号", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (userCombox.Text.Length == 0 || pwd.Text.Length == 0)
{
MessageBox.Show(this, "账户名称及密码不能为空", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
OleDbConnection oleDB = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=dac.accdb");
oleDB.Open();
OleDbCommand conn = new OleDbCommand();
conn.Connection = oleDB;
conn.CommandText = "select * from [主体信息表] where 主体名称=" + "'" + userCombox.Text.ToLower() + "'";
OleDbDataReader dr = conn.ExecuteReader();
if (dr.HasRows == true)
{
while (dr.Read())
{
if (dr[1].ToString().CompareTo(pwd.Text.GetHashCode().ToString()) == 0)//找到相应的记录，置登录标志为真
{
isLogin = true;
}
}
}
dr.Close();
oleDB.Close();
if (isLogin == false)
{
MessageBox.Show(this, "密码错误"+pwd.Text.GetHashCode().ToString(), "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
else
{
MessageBox.Show(this, "登录成功,按确定进入", "登录成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
this.Visible = false;
switch (this.userCombox.Text.ToLower())//选择不同的窗口
{
case "admin":
{
Admin a = new Admin();
a.ShowDialog();
break;
}
case "security_officer":
{
Security_Officer s= new Security_Officer();
s.ShowDialog();
break;
}
default:
{
CommonUser c = new CommonUser();
c.GetUserName = this.userCombox.Text.ToLower();
c.ShowDialog();
break;
}
}
this.Visible = true;
}
//登录
private void btn_enter_Click(object sender, System.EventArgs e)
{
bool isLogin = false;
if (SubjectRegister.IsUserNameUsed(userCombox.Text) == false)
{
MessageBox.Show(this, "数据库中找不到这样的账号", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (userCombox.Text.Length == 0 || pwd.Text.Length == 0)
{
MessageBox.Show(this, "账户名称及密码不能为空", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
OleDbConnection oleDB = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=dac.accdb");
oleDB.Open();
OleDbCommand conn = new OleDbCommand();
conn.Connection = oleDB;
conn.CommandText = "select * from [主体信息表] where 主体名称=" + "'" + userCombox.Text.ToLower() + "'";
OleDbDataReader dr = conn.ExecuteReader();
if (dr.HasRows == true)
{
while (dr.Read())
{
if (dr[1].ToString().CompareTo(pwd.Text.GetHashCode().ToString()) == 0)//找到相应的记录，置登录标志为真
{
isLogin = true;
}
}
}
dr.Close();
oleDB.Close();
if (isLogin == false)
{
MessageBox.Show(this, "密码错误" + pwd.Text.GetHashCode().ToString(), "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
else
{
MessageBox.Show(this, "登录成功,按确定进入", "登录成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
this.Visible = false;
switch (this.userCombox.Text.ToLower())//选择不同的窗口
{
case "admin":
{
Admin a = new Admin();
a.ShowDialog();
break;
}
case "security_officer":
{
Security_Officer s = new Security_Officer();
s.ShowDialog();
break;
}
default:
{
CommonUser c = new CommonUser();
c.GetUserName = this.userCombox.Text.ToLower();
c.ShowDialog();
break;
}
}
this.Visible = true;
}