//Bán hàng
public static DataTable LayChungTuBH()
{
try
{
Kho dao = new Kho();
DataTable dataTableCT = dao.ChitietChungTuBH();
DonViTinh dv = new DonViTinh();
DataTable dataTableDV = dv.LoadDVTDonGian();
DataTable dataTableKho = dao.LoadKhoHang();
DataTable dataTableBH = dao.LayChungTuBH();
var results = from table1 in dataTableCT.AsEnumerable()
join table2 in dataTableDV.AsEnumerable() on(string) table1["Unit"] equals(string) table2["UNIT_ID"]
join table3 in dataTableKho.AsEnumerable() on(string) table1["Stock_ID"] equals(string) table3["Stock_ID"]
join table4 in dataTableBH.AsEnumerable() on(string) table1["Outward_ID"] equals(string) table4["ID"]
select new
{
Outward_ID = table1["Outward_ID"].ToString(),
RefDate = DateTime.Parse(table4["RefDate"].ToString()),
Description = table1["Description"].ToString(),
Product_ID = table1["Product_ID"].ToString(),
ProductName = table1["ProductName"].ToString(),
Stock_ID = table3["Stock_Name"].ToString(),
Unit = table2["Unit_Name"].ToString(),
Quantity = float.Parse(table1["Quantity"].ToString()),
UnitPrice = float.Parse(table1["UnitPrice"].ToString()),
Charge = float.Parse(table1["Charge"].ToString()),
DiscountRate = float.Parse(table1["DiscountRate"].ToString()),
Discount = float.Parse(table1["Discount"].ToString()),
Amount = float.Parse(table1["Amount"].ToString())
};
DataTable rs = new DataTable();
rs.Columns.Add("Outward_ID");
rs.Columns.Add("RefDate");
rs.Columns.Add("Description");
rs.Columns.Add("Product_ID");
rs.Columns.Add("ProductName");
rs.Columns.Add("Stock_ID");
rs.Columns.Add("Unit");
rs.Columns.Add("Quantity", typeof(float));
rs.Columns.Add("UnitPrice", typeof(float));
rs.Columns.Add("Charge", typeof(float));
rs.Columns.Add("DiscountRate", typeof(float));
rs.Columns.Add("Discount", typeof(float));
rs.Columns.Add("Amount", typeof(float));
foreach (var item in results)
{
rs.Rows.Add(item.Outward_ID, item.RefDate, item.Description, item.Product_ID, item.ProductName, item.Stock_ID, item.Unit,
item.Quantity, item.UnitPrice, item.Charge, item.DiscountRate, item.Discount, item.Amount);
}
return(rs);
}
catch (SqlException ex)
{
throw ex;
}
}