private void btSave_Click(object sender, EventArgs e)
{
var db = new StormEntities1();
var newStudent = db.Students.Find(this.std.Id);
newStudent.Fullname = this.txtName.Text;
newStudent.Code = this.txtCode.Text;
newStudent.Class_id = (int)this.cbClass.SelectedValue;
newStudent.Birthday = this.dtDob.Value;
db.Entry(newStudent).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
this.Close();
MessageBox.Show("Edit student successfully");
}
private void btDelete_Click(object sender, EventArgs e)
{
var db = new StormEntities1();
if (MessageBox.Show("Are u sure ?", "Warning!!", MessageBoxButtons.YesNo) == System.Windows.Forms.DialogResult.Yes)
{
for (int i = 0; i < this.lstStudent.SelectedRows.Count; i++)
{
var row = this.lstStudent.SelectedRows[i];
var item = (StudentView)row.DataBoundItem;
try
{
Student student = db.Students.Find(item.Id);
db.Students.Remove(student);
db.SaveChanges();
}
catch (Exception)
{
MessageBox.Show("Cannot delete student " + item);
}
}
}
loadStudent();
}
public FormEdit(Student std)
{
InitializeComponent();
this.std = std;
db = new StormEntities1();
}