public int CompareTo(object obj)
{
HinhChuNhat hcnSS = (HinhChuNhat)obj;
double dt = this.DienTich();
double dtSS = hcnSS.DienTich();
int kqSS = dt.CompareTo(dtSS);
return(kqSS);
}
protected void btnTinh_Click(object sender, EventArgs e)
{
HinhChuNhat hcn = new HinhChuNhat();
hcn.ChieuDai = double.Parse(txtChieuDai.Text);
hcn.ChieuRong = double.Parse(txtChieuRong.Text);
string dvt = ((char)178).ToString();
double dientich = hcn.DienTich();
txtDienTich.Text = string.Format("{0}{1}", dientich.ToString("#,##0"), dvt);
}
protected void btnTinh_Click(object sender, EventArgs e)
{
double dai = double.Parse(txtChieuDai.Text);
double rong = double.Parse(txtChieuRong.Text);
HinhChuNhat h = new HinhChuNhat {
ChieuDai = dai, ChieuRong = rong
};
double dt = h.DienTich();
char sup2 = (char)178;
txtDienTich.Text = dt.ToString("#,##0m") + sup2.ToString();
}
protected void Button1_Click(object sender, EventArgs e)
{
int[] MangSo = new int[] { 5, 3, 4, 1 };
Array.Sort(MangSo);
HinhChuNhat[] mangHCN = new HinhChuNhat[3];
mangHCN[0] = new HinhChuNhat {
ChieuDai = 10, ChieuRong = 5
};
mangHCN[1] = new HinhChuNhat {
ChieuDai = 30, ChieuRong = 5
};
mangHCN[2] = new HinhChuNhat {
ChieuDai = 20, ChieuRong = 5
};
Array.Sort(mangHCN);
}
protected void btnTinh_Click(object sender, EventArgs e)
{
// Ứng dụng kỹ thuật Late Binding
IHinh h;
if (rdbHinhVuong.Checked)
{
double c = double.Parse(txtCanh.Text);
h = new HinhVuong {
Canh = c
};
}
else
{
double d = double.Parse(txtChieuDai.Text);
double r = double.Parse(txtChieuRong.Text);
h = new HinhChuNhat {
ChieuDai = d, ChieuRong = r
};
}
txtKetQua.Text = h.XuatThongTin();
}
protected void btnTinh_Click(object sender, EventArgs e)
{
IHinh hinh;
if (rdbHinhVuong.Checked)
{
//hinh = new HinhVuong// do tạo constructors nên dùng gán bằng cách gọi thuộc tính
//{
// Canh = double.Parse(txtCanh.Text)
//};
double canh = double.Parse(txtCanh.Text);
hinh = new HinhVuong(canh);
}
else
{
hinh = new HinhChuNhat
{
ChieuDai = double.Parse(txtChieuDai.Text),
ChieuRong = double.Parse(txtChieuRong.Text)
};
}
}
