مخصوص اعضای ویژه 
private void frmEdit_Load(object sender, EventArgs e)
{
var person = _Context.Persons.Single(p => p.PersonId == _personId);
txtName.Text = person.Name;
txtFamily.Text = person.Family;
txtMobile.Text = person.Mobile;
txtEmail.Text = person.Email;
if (person.IsTeacher)
{
rbTeacher.Checked = true;
}
else
{
rbStudent.Checked = true;
}
}
private void btnCancle_Click(object sender, EventArgs e)
{
this.Close();
}
