private void button1_Click(object sender, EventArgs e) { using (StreamWriter sw = File.AppendText(@"D:\C#\DungApp\WindowsFormsApp2\WindowsFormsApp2\DATA\NhomlienlacCT.txt")) sw.WriteLine(txtNhom.Text + "#" + textlienlac.Text + "#" + textEmail.Text + "#" + textsdt.Text + "#" + textdiachi.Text); Form1 form1 = new Form1(); form1.Refresh(); form1.dgvTenNhom.Refresh(); form1.Show(); this.Close(); }
private void button1_Click(object sender, EventArgs e) { List <TenNhom> a = TenNhom.GetListFromFile(pathDataNhom); for (int i = 0; i < a.Count; i++) { if (a[i].tennhom == txtadd.Text) { MessageBox.Show("Không thể thêm nhóm đã tồn tại"); return; } } using (StreamWriter sw = File.AppendText(@"D:\C#\DungApp\WindowsFormsApp2\WindowsFormsApp2\DATA\Nhomlienlac.txt")) sw.WriteLine(txtadd.Text); Form1 form1 = new Form1(); form1.Refresh(); form1.Show(); this.Close(); }