private void s_Click(object sender, EventArgs e)
{
string macn, tencn;
macn = txtmnganh.Text;
tencn = txttennganh.Text;
Chuyennganh cn = new Chuyennganh(macn, tencn);
try
{
int i = new ChuyennganhBUS().Suachuyennganh(cn);
if (i == -2)
{
throw new Exception();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
dgvcn.DataSource = getchuyennganh();
txtmnganh.Clear();
txttennganh.Clear();
loadCN();
}
public List <Chuyennganh> getchuyennganh()
{
try
{
string sql = "select * from ChuyenNganh";
ChuyennganhBUS cn = new ChuyennganhBUS();
return(cn.getchuyennganh(sql));
}
catch (Exception ex)
{
throw ex;
}
}
private void btxoacn_Click(object sender, EventArgs e)
{
try
{
string manganh = txtmnganh.Text.Trim();
int i = new ChuyennganhBUS().xoachuyennganh(manganh);
txtmnganh.Clear();
txttennganh.Clear();
loadCN();
}
catch (Exception ex)
{
throw ex;
}
}
private void btaddcn_Click(object sender, EventArgs e)
{
try
{
string manganh, tennganh;
manganh = txtmnganh.Text;
tennganh = txttennganh.Text;
Chuyennganh cn = new Chuyennganh(manganh, tennganh);
int i = new ChuyennganhBUS().Addchuyennganh(cn);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
txtmnganh.Clear();
txttennganh.Clear();
loadCN();
}
