private void btnDelete_Click(object sender, EventArgs e)
{
if (MessageBox.Show("are you sure to delete this record ?", "EF Crud Operaton ", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
using (EFDBEntities db = new EFDBEntities())
{
var entry = db.Entry(model);
if (entry.State == EntityState.Detached)
{
db.Customers.Attach(model);
}
db.Customers.Remove(model);
db.SaveChanges();
PopulateDataGridView();
Clear();
MessageBox.Show("Delete successfully");
}
}
}
private void btnSave_Click(object sender, EventArgs e)
{
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.CustomerID == 0) // insert
{
db.Customers.Add(model);
}
else // update
{
db.Entry(model).State = EntityState.Modified;
}
db.SaveChanges();
}
Clear();
PopulateDataGridView();
MessageBox.Show("submit successfully");
}