public void setBaiHat(string tenBH, string pathName)
{
List <BaiHat> bh2 = da.BaiHats.Select(k => k).ToList();
int[] chuoisoint = new int[bh2.Count()];
for (int i = 0; i < bh2.Count(); i++)
{
string m = bh2[i].maBaiHat;
chuoisoint[i] = int.Parse(m.Substring(2));
}
int max = chuoisoint[0];
for (int j = 1; j < bh2.Count(); j++)
{
if (chuoisoint[j] > max)
{
max = chuoisoint[j];
}
}
BaiHat bh = new BaiHat();
bh.maBaiHat = "BH" + max;
bh.tenBaiHat = tenBH;
bh.maCaSi = null;
bh.pathBaiHat = pathName;
da.BaiHats.InsertOnSubmit(bh);
da.SubmitChanges();
}
public void themCaSiinBaiHat(string mabh, string macs)
{
BaiHat bh = da.BaiHats.Where(t => t.maBaiHat == mabh).SingleOrDefault();
bh.maCaSi = macs;
da.SubmitChanges();
}
public string getPathBaiHat(string tenBH)
{
BaiHat bh = da.BaiHats.Where(t => t.tenBaiHat == tenBH).FirstOrDefault();
return(bh.pathBaiHat);
}
private void detach_BaiHats(BaiHat entity)
{
this.SendPropertyChanging();
entity.CaSi = null;
}
private void attach_BaiHats(BaiHat entity)
{
this.SendPropertyChanging();
entity.CaSi = this;
}
partial void DeleteBaiHat(BaiHat instance);
partial void UpdateBaiHat(BaiHat instance);
partial void InsertBaiHat(BaiHat instance);