//Удаление книги из БД
protected void delete_OnClick(object sender, EventArgs e)
{
var temp = book.Book;
var deleteBook = from book1 in temp
where book1.Id.ToString() == id
select book1;
ClassCombine combine = new ClassCombine();
try
{
File.Delete(combine.combine(Server.MapPath(deleteBook.FirstOrDefault().Обложка)));
File.Delete(combine.combine(Server.MapPath(deleteBook.FirstOrDefault().Путь_к_Файлу)));
this.Page.ClientScript.RegisterStartupScript(this.GetType(), "MyScript", "<script language='javascript'>alert( 'Successful File delete' );</script>");
}
catch (IOException exc)
{
this.Page.ClientScript.RegisterStartupScript(this.GetType(), "MyScript", "<script language='javascript'>alert( 'Error File not deleted' );</script>");
}
temp.RemoveRange(deleteBook);
book.SaveChanges();
}
private void fileLoad(string fileFormat, string path, FileUpload fileUpload)
{
int fileSize = (2 * 1024 * 1024);
string format = Path.GetExtension(fileUpload.PostedFile.FileName);
int size = fileUpload.PostedFile.ContentLength;
if (!format.Equals(fileFormat))
{
error.Text = "Неподдерживаемое расширение файла";
}
else
{
if (size > fileSize)
{
error.Text = "Неожиданно большой размер файла";
}
else
{
ClassCombine combine = new ClassCombine();
path = combine.combine(Server.MapPath(path)) + fileUpload.PostedFile.FileName;
fileUpload.SaveAs(path);
error.Style["color"] = "yellow";
error.Text += "Файл успешно загружен: " + fileUpload.PostedFile.FileName + "</br></br>";
}
}
}
//Скачивание файла книги с сервера
protected void load_OnClick(object sender, EventArgs e)
{
var temp = book.Book;
string path;
foreach (var g in temp)
{
try
{
if (g.Id == Convert.ToInt32(id))
{
ClassCombine combine = new ClassCombine();
path = combine.combine(Server.MapPath(g.Путь_к_Файлу));
FileInfo file = new FileInfo(path);
Context.Response.AddHeader("Content-Length", file.Length.ToString());
Context.Response.AddHeader("Connection", "Keep-Alive");
Context.Response.ContentType = "text/plain";
Context.Response.AddHeader("Content-Disposition", "attachment;filename=" + file.Name);
Context.Response.WriteFile(file.FullName);
Context.Response.End();
}
}
catch (FormatException)
{
Response.Redirect("~/Pages/WebForm1.aspx");
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
string name = Request.QueryString["name"];
if (string.IsNullOrEmpty(name))
{
Response.Redirect("~/Pages/HomePage.aspx");
}
else
{
ClassCombine combine = new ClassCombine();
path = combine.combine(Server.MapPath(name));
FileStream file = new FileStream(path, FileMode.Open, FileAccess.Read);
var encod = Encoding.GetEncoding("windows-1251");
StreamReader stream = new StreamReader(file, encod);
label.Text = stream.ReadToEnd();
}
}