private void btntinhthue_Click(object sender, EventArgs e)
{
try
{
Khachthue khach = new Khachthue();
khach.Maso = Convert.ToInt32(txtmaKH.Text);
khach.Hoten = txthotenKH1.Text;
khach.Soluong = Convert.ToInt32(cbbsl.Text);
khach.Dongia = Convert.ToInt32(txtdongiatien.Text);
if (rd3p.Checked)
{
khach.Trangthai = true;
}
else
{
khach.Trangthai = false;
}
if (objdansach.ThemKhachThue(khach))
{
lsvDS.Items.Clear();
LoadToanDSLV(objdansach.GetAllKhachThue());
}
else
{
MessageBox.Show("Trùng mã");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void SuaThongTinKhach(Khachthue khachDaSua)
{
int vitriTimThay = ds.IndexOf(khachDaSua);
if (vitriTimThay >= 0)
{
ds[vitriTimThay] = khachDaSua;
}
}
void XoaitemDangchon(ListView lvw)
{
Khachthue khachDeXoa = null;
foreach (ListViewItem item in lsvDS.SelectedItems)
{
khachDeXoa = (Khachthue)item.Tag;
objdansach.Xoakhach(khachDeXoa);
}
}
public bool ThemKhachThue(Khachthue KT)
{
if (ds.Contains(KT))
{
return(false);
}
else
{
ds.Add(KT);
return(true);
}
}
private void lsvDS_SelectedIndexChanged(object sender, EventArgs e)
{
if (lsvDS.SelectedItems.Count > 0)
{
btnthoat.Enabled = true;
vitrihientai = Convert.ToInt32(lsvDS.SelectedIndices[0].ToString());
Khachthue objkhach = (Khachthue)lsvDS.Items[vitrihientai].Tag;
LoadObjToText(objkhach);
vitrihientai += 1;
txtThongtin.Text = vitrihientai.ToString() + "/" + lsvDS.Items.Count.ToString();
}
}
private void btncapnhat_Click(object sender, EventArgs e)
{
Khachthue khach = new Khachthue();
khach.Maso = Convert.ToInt32(txtmaKH.Text);
khach.Hoten = txthotenKH1.Text;
khach.Soluong = Convert.ToInt32(cbbsl.Text);
khach.Dongia = Convert.ToInt32(txtdongiatien.Text);
if (rd3p.Checked)
{
khach.Trangthai = true;
}
else
{
khach.Trangthai = false;
}
objdansach.SuaThongTinKhach(khach);
lsvDS.Items.Clear();
LoadToanDSLV(objdansach.GetAllKhachThue());
}
public void Xoakhach(Khachthue ma)
{
ds.Remove(ma);
}
public override bool Equals(object obj)
{
Khachthue objKhach = (Khachthue)obj;
return(this.Maso.Equals(objKhach.Maso));
}
void LoadObjToText(Khachthue objKhach)
{
txtmaKH.Text = objKhach.Maso.ToString();
txthotenKH1.Text = objKhach.Hoten;
txtdongiatien.Text = objKhach.Dongia.ToString();
}
