protected void Button1_Click(object sender, EventArgs e)
{
StudentEntity std = new StudentEntity();
std.NAME = TxtName.Text.ToString();
std.SURNAME = TxtSurName.Text.ToString();
std.NUMBER = TxtNumber.Text.ToString();
std.PHOTO = TxtPhoto.Text.ToString();
std.PASSWORD = TxtPassword.Text.ToString();
std.ID = Convert.ToInt32(TxtID.Text);
StudentBusiness.UpdateStdBusiness(std);
Response.Redirect("StudentList.aspx");
}