private void btnSave_Click(object sender, EventArgs e)
{
/*dicelar mathod for all button*/
model.FirstName = txtFirstName.Text.Trim();
model.LastName = txtLastName.Text.Trim();
model.City = txtCity.Text.Trim();
model.Address = txtAddress.Text.Trim();
using (EFDBEntities db = new EFDBEntities())
{
/*------------------------*/
if (model.StudentID == 0) //insert
{
db.Students.Add(model);
}
else //update
{
db.Entry(model).State = EntityState.Modified;
}
db.SaveChanges();
}
/* call clear funtion here*/
Clear();
PopulateDataGridView();
MessageBox.Show("Well Comme!! Submitted Successfully");
}
private void btnDelete_Click(object sender, EventArgs e)
{
if (MessageBox.Show("Are you sure you want to Delete record?", "EF CRUD Operation", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
using (EFDBEntities db = new EFDBEntities())
{
var entry = db.Entry(model);
if (entry.State == EntityState.Detached)
{
db.Students.Attach(model);
}
db.Students.Remove(model);
db.SaveChanges();
PopulateDataGridView();
Clear();
MessageBox.Show("Deleted successfully by Redwan Omer");
}
}
}