private void lstBaihoc_SelectedIndexChanged(object sender, EventArgs e)
{
if (lstBaihoc.SelectedIndices.Count <= 0)
{
return;
}
int intselectedindex = lstBaihoc.SelectedIndices[0];
if (intselectedindex >= 0)
{
String id = lstBaihoc.Items[intselectedindex].SubItems[0].Text;
txtID.Text = id;
BaiHoc bh = MyFunction.ThongtinBaihoc(int.Parse(id));
txtTieude.Text = bh.tieude.ToString();
txtNoidung.Text = MyFunction.NoidungToText(bh.baihoc);
txtThutu.Text = bh.thutu.ToString();
}
}
BaiHoc lay_baihoc()
{
if (bai_chon == -1)
{
MyFunction.FromXml_NoiCau();
danhsachNoiCau = MyFunction.danhsachBaihoc;
}
if (danhsachNoiCau.Count == 0)
{
return(null);
}
//Random randomBaihoc = new Random();
//int idx = randomBaihoc.Next(0, danhsachNoiCau.Count);
BaiHoc bai = null;
if (bai_chon == -1)
{
bai = danhsachNoiCau.OrderBy(x => x.thutu).ToList().FirstOrDefault();
}
else
{
bai = MyFunction.danhsachBaihoc.OrderBy(x => x.thutu).ToList().FirstOrDefault(x => x.thutu > bai_chon);
}
if (bai == null)
{
bai_chon = -1;
MessageBox.Show("Hết rồi !!!");
return(null);
}
baihocTV = bai;
bai_chon = bai.thutu;
return(bai);
}
private void btnBaiKe_Click(object sender, EventArgs e)
{
BaiHoc baike = null;
if (baihocTV == null)
{
baike = MyFunction.danhsachBaihoc.OrderBy(x => x.thutu).ToList().FirstOrDefault();
}
else
{
baike = MyFunction.danhsachBaihoc.OrderBy(x => x.thutu).ToList().FirstOrDefault(x => x.thutu > baihocTV.thutu);
}
if (baike == null)
{
MessageBox.Show("Đây là bài cuối !!!");
return;
}
baihocTV = baike;
HienThiBaiHoc();
}
private void btnBaiTruoc_Click(object sender, EventArgs e)
{
BaiHoc bai = null;
if (baihocTV == null)
{
bai = MyFunction.danhsachBaihoc.OrderBy(x => x.thutu).ToList().LastOrDefault();
}
else
{
bai = MyFunction.danhsachBaihoc.OrderBy(x => x.thutu).ToList().LastOrDefault(x => x.thutu < baihocTV.thutu);
}
if (bai == null)
{
MessageBox.Show("Đây là bài đầu tiên !!!");
return;
}
baihocTV = bai;
HienThiBaiHoc();
}
private void btnXoa_Click(object sender, EventArgs e)
{
if (txtID.Text != "")
{
BaiHoc bh = MyFunction.danhsachBaihoc.FirstOrDefault(x => x.Id == int.Parse(txtID.Text));
if (bh != null)
{
try
{
MyFunction.danhsachBaihoc.Remove(bh);
MyFunction.ToXml_NoiCau();
load_listBaihoc();
}
catch (Exception ex)
{
MessageBox.Show("Khong Xoa Duoc");
return;
}
}
}
init_input();
}
private void btnLuu_Click(object sender, EventArgs e)
{
////foreach (BaiHoc bh in MyFunction.danhsachBaihoc)
////{
//// //bh.Id = int.Parse(bh.tieude.Replace("Bài ", "").Replace("Bai", "").Replace(" ", "").Trim());
//// bh.tieude = bh.tieude.Replace("Bài ", "").Replace("Bai", "").Replace(" ", "").Trim();
////}
////MyFunction.ToXml_NoiCau();
////return;
if (txtTieude.Text.Trim() == "" || txtNoidung.Text.Trim() == "")
{
MessageBox.Show("Chưa nhập đủ thông tin");
return;
}
List <string> txt = txtNoidung.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None).ToList();
int dong = 0;
List <Noidung> baihoc = new List <Noidung>();
foreach (string str in txt)
{
if (str.Trim().Length > 0)
{
Noidung nd = new Noidung();
dong++;
nd.dong = dong;
nd.noidung = str.Trim();
baihoc.Add(nd);
}
}
if (txtID.Text != "")
{
int idx = MyFunction.danhsachBaihoc.FindIndex(x => x.Id == int.Parse(txtID.Text));
MyFunction.danhsachBaihoc[idx].tieude = int.Parse(txtTieude.Text.Trim());
MyFunction.danhsachBaihoc[idx].baihoc = baihoc;
MyFunction.danhsachBaihoc[idx].thutu = int.Parse(txtThutu.Text);
}
else
{
BaiHoc bh = new BaiHoc();
bh.Id = MyFunction.Get_MaxId() + 1;
bh.tieude = int.Parse(txtTieude.Text.Trim());
bh.baihoc = baihoc;
bh.thutu = int.Parse(txtThutu.Text);
MyFunction.danhsachBaihoc.Add(bh);
}
MyFunction.ToXml_NoiCau();
load_listBaihoc();
init_input();
}