private void FBanhang_Load(object sender, EventArgs e)
{
bt_xoa.Hide();
bt_tinh.Hide();
conn = con._CreateConnect();
lb_ngay.Text = DateTime.Now.ToString("MM/dd/yyyy");
}
public int GetScalar(string sqlquery)
{
ConnectData con = new ConnectData();
SqlConnection conn = new SqlConnection();
conn = con._CreateConnect();
conn.Open();
SqlCommand cmd = new SqlCommand(sqlquery, conn);
int scalar = Convert.ToInt32(cmd.ExecuteScalar());
conn.Close();
return(scalar);
}
public DataTable Getdatatable(string sqlquery)
{
ConnectData con = new ConnectData();
SqlConnection conn = new SqlConnection();
conn = con._CreateConnect();
conn.Open();
SqlCommand cmd = new SqlCommand(sqlquery, conn);
SqlDataAdapter da = new SqlDataAdapter(cmd);
dt = new DataTable();
da.Fill(dt);
conn.Close();
return(dt);
}
private void bt_them_Click(object sender, EventArgs e)
{
ConnectData con = new ConnectData();
SqlConnection conn = new SqlConnection();
conn = con._CreateConnect();
if (cbb_chon.Text == "")
{
MessageBox.Show("Chưa chọn loại chức năng thêm !!!", "Lỗi", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else if (cbb_chon.Text == "Thêm máy tính")
{
StringBuilder builder = new StringBuilder();
builder.Append(RandomNumber(0, 9999));
string sql = "insert into TBLMAYTINH(MAMAY, TENMAY, DONGIA, GHICHU, TINHTRANG) VALUES('MT" + builder.ToString() + "',N'" + txt_ten.Text + "'," + txt_dongia.Text + ",N'" + txt_ghichu.Text + "',1)";
string sql2 = "insert into TBLCAUHINH(MAMAY, HANG,CPU ,GPU ,RAM ,HARDDISK) values('MT" + builder.ToString() + "',N'" + cbb_hang.Text + "',N'" + txt_CPU.Text + "',N'" + txt_GPU.Text + "',N'" + cbb_ram.Text + "',N'" + txt_hardisk.Text + "')";
SqlCommand cmd = new SqlCommand(sql, conn);
SqlCommand cmd2 = new SqlCommand(sql2, conn);
conn.Open();
cmd.ExecuteNonQuery();
cmd2.ExecuteNonQuery();
conn.Close();
MessageBox.Show("Thêm máy tính thành công !!!", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else if (cbb_chon.Text == "Thêm linh kiện")
{
StringBuilder builder = new StringBuilder();
builder.Append(RandomNumber(0, 9999));
string sql = "insert into TBLLINHKIEN(MALK, TENLK, DONGIA, GHICHU, TINHTRANG) VALUES('LK" + builder.ToString() + "',N'" + txt_ten.Text + "'," + txt_dongia.Text + ",N'" + txt_ghichu.Text + "',1)";
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
MessageBox.Show("Thêm linh kiện thành công !!!", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Chọn sai chức năng !!!", "Lỗi", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
