private void button1_Click(object sender, EventArgs e)
{
Ltimkiem tk = new Ltimkiem();
ds = tk.nangcao(textBox1.Text, cbtacgiac.Text, cbloaisach.Text, cbngonngu.Text);
dataGridView1.DataSource = ds.Tables[0];
cm = BindingContext[this.ds.Tables[0]] as CurrencyManager;
label5.Text = cm.Count.ToString();
}
private void button1_Click(object sender, EventArgs e)
{
Ltimkiem tk = new Ltimkiem();
ds = tk.coban(txttimkiem.Text);
lbdem.Text = ds.Tables[0].Rows.Count.ToString();
dataGridView1.DataSource = ds.Tables[0];
cm = BindingContext[this.ds.Tables[0]] as CurrencyManager;
}
