public bool taomoi()
{
laydulieu ld = new laydulieu();
if (ld.thucthitruyvan(" insert into nhanvien(manhanvien,hoten,diachi,tendangnhap,matkhau,quyenhan) values ('" + manhanvien + "',N'" + hoten + "',N'" + diachi + "',N'" + tendangnhap + "','" + matkhau + "','" + quyenhan + "')") == 1)
{
ketnoi.HuyKetNoi();
return(true);
}
else
{
return(false);
}
}
public bool xoabo()
{
laydulieu ld = new laydulieu();
if (ld.thucthitruyvan(" delete from nhanvien where manhanvien= '" + manhanvien + "'") == 1)
{
ketnoi.HuyKetNoi();
return(true);
}
else
{
return(false);
}
}
public bool capnhat()
{
laydulieu ld = new laydulieu();
if (ld.thucthitruyvan(" update nhanvien set manhanvien='" + manhanvien + "',hoten=N'" + hoten + "',diachi=N'" + diachi + "',tendangnhap=N'" + tendangnhap + "' where manhanvien='" + manhanvien + "'") == 1)
{
ketnoi.HuyKetNoi();
return(true);
}
else
{
return(false);
}
}
public bool doimatkhau(string moi)
{
laydulieu ld = new laydulieu();
matkhau = moi;
if (ld.thucthitruyvan(" update nhanvien set matkhau=N'" + moi + "' where manhanvien='" + manhanvien + "'") == 1)
{
ketnoi.HuyKetNoi();
return(true);
}
else
{
return(false);
}
}
public bool nangquyen(string quyenmoi)
{
this.quyenhan = quyenmoi;
laydulieu ld = new laydulieu();
if (ld.thucthitruyvan(" update nhanvien set quyenhan ='" + quyenmoi + "' where manhanvien = '" + manhanvien + "'") == 1)
{
ketnoi.HuyKetNoi();
return(true);
}
else
{
return(false);
}
}