public DataTable getallinfo() {
string query = string.Format("SELECT * FROM ban");
try {
con = new DbConnection();
con.openConnection();
}
catch (SqlException e) { }
return con.executeSelectQuery(query);
}
public DataTable getfilterinfo(String _Condition)
{
string query = string.Format("SELECT * FROM ban WHERE "+_Condition);
try
{
con = new DbConnection();
con.openConnection();
}
catch (SqlException e) { }
return con.executeSelectQuery(query);
}
public DataTable getallinfo()
{
string query = string.Format("SELECT * FROM ban");
try {
con = new DbConnection();
con.openConnection();
}
catch (SqlException e) { }
return(con.executeSelectQuery(query));
}
public DataTable getallthucdon()
{
string query = string.Format("SELECT thucdon.mamon, thucdon.tenmon, thucdon.gia, loaithucdon.tenloai, thucdon.donvi, thucdon.tinhtrang, thucdon.mota FROM thucdon INNER JOIN loaithucdon ON thucdon.maloai = loaithucdon.maloai");
try
{
con = new DbConnection();
con.openConnection();
}
catch (SqlException e) { }
return con.executeSelectQuery(query);
}
public DataTable getallinfo(string a, string b)
{
string query = string.Format("select hoadon.mahoadon,thucdon.tenmon,chitiethoadon.soluong,chitiethoadon.thanhtien, hoadon.ngaylap FROM hoadon inner join chitiethoadon ON hoadon.mahoadon = chitiethoadon.mahoadon inner join thucdon ON chitiethoadon.mamon = thucdon.mamon WHERE hoadon.maban = " + a + " and hoadon.tinhtrang = " + b);
try
{
con = new DbConnection();
con.openConnection();
}
catch (SqlException e) { }
return(con.executeSelectQuery(query));
}
public DataTable getallthucdon()
{
string query = string.Format("SELECT thucdon.mamon, thucdon.tenmon, thucdon.gia, loaithucdon.tenloai, thucdon.donvi, thucdon.tinhtrang, thucdon.mota FROM thucdon INNER JOIN loaithucdon ON thucdon.maloai = loaithucdon.maloai");
try
{
con = new DbConnection();
con.openConnection();
}
catch (SqlException e) { }
return(con.executeSelectQuery(query));
}
public DataTable getfilterinfo(String _Condition)
{
string query = string.Format("SELECT * FROM ban WHERE " + _Condition);
try
{
con = new DbConnection();
con.openConnection();
}
catch (SqlException e) { }
return(con.executeSelectQuery(query));
}
