void PopulateDataGridView()
{
dgvCustomer.AutoGenerateColumns = false;
using (EFDBEntities db = new EFDBEntities())
{
dgvCustomer.DataSource = db.Customers.ToList <Customer>();
}
}
private void dgvCustomer_DoubleClick(object sender, EventArgs e)
{
if (dgvCustomer.CurrentRow.Index != -1)
{
model.CustomerID = Convert.ToInt32(dgvCustomer.CurrentRow.Cells["CustomerID"].Value);
using (EFDBEntities db = new EFDBEntities())
{
model = db.Customers.Where(x => x.CustomerID == model.CustomerID).FirstOrDefault();
txtFirstName.Text = model.FirstName.Trim();
txtLastName.Text = model.LastName.Trim();
txtCity.Text = model.City.Trim();
txtAddress.Text = model.Address.Trim();
}
btnSave.Text = "Update";
btnDelete.Enabled = true;
}
}
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");
}
