//login button
private void button2_Click(object sender, EventArgs e)
{
string username = textBox1.Text;
Int64 password = textBox2.Text.GetHashCode();
var userList = loginCredential.AsQueryable().Where(n => n.UserName == username);
if (userList.Count() != 0)
{
var user = userList.First();
if (user.Password == password)
{
textBox1.Text = textBox2.Text = String.Empty;
if (user.Type == "teacher")
{
TeacherForm t = TeacherForm.GetInstance();
MainContainer.LoadForm(t);
}
else
{
StudentForm s = StudentForm.GetInstance(user.UserName);
MainContainer.LoadForm(s);
}
}
else
{
MessageBox.Show("Invalid Username or Password!", "Unauthorized acess", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
}
else
{
MessageBox.Show("Invalid Username or Password!", "Unauthorized acess", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
}
public static TeacherForm GetInstance()
{
if (_instance == null)
{
_instance = new TeacherForm();
}
else
{
_instance.RefreshForm();
}
return(_instance);
}