public ActionResult SaveFile()
{
ExistingFilesModel theModel = GetModelFromSession();
HttpPostedFileBase File = Request.Files["FileToLoad"];
if (File != null)
{
int Size = File.ContentLength;
if (Size <= 0)
{
ViewData["ERROR"] = "You uploaded an empty file, please browse a valid file to upload";
return(View("../Shared/Error"));
}
string FileName = File.FileName;
int Position = FileName.LastIndexOf("\\");
FileName = FileName.Substring(Position + 1);
string ContentType = File.ContentType;
byte[] FileData = new byte[Size];
File.InputStream.Read(FileData, 0, Size);
theModel.AddAFile(FileName, Size, ContentType, FileData);
}
return(RedirectToAction("FileUpload"));
}
public ActionResult FileUpload()
{
ExistingFilesModel theModel = GetModelFromSession();
DataTable aTable = theModel.GetUploadedFiles();
ViewData["ExistingFileList"] = aTable.DefaultView;
return(View());
}
private ExistingFilesModel GetModelFromSession()
{
ExistingFilesModel theModel = (ExistingFilesModel)Session["ExistingFilesModel"];
if (theModel == null)
{
theModel = new ExistingFilesModel();
DataTable aTable = theModel.GetUploadedFiles();
aTable.Columns["File Data"].ColumnMapping = MappingType.Hidden;
Session["ExistingFilesModel"] = theModel;
}
return(theModel);
}
public ActionResult GetAFile()
{
string Attachment = Request.QueryString["ATTACH"];
string ID = Request.QueryString["ID"];
int intID;
if (!Int32.TryParse(ID, out intID))
{
ViewData["ERROR"] = "Please provide a valid student ID";
return(View("../Shared/Error"));
}
ExistingFilesModel theModel = GetModelFromSession();
DataTable aTable = theModel.GetUploadedFiles();
DataRow FileRow = aTable.Rows.Find(intID);
if (FileRow == null)
{
ViewData["ERROR"] = "Please provide a valid student ID";
return(View("../Shared/Error"));
}
string FileName = (string)FileRow["File Name"];
int Size = (int)FileRow["File Size"];
string ContentType = (string)FileRow["Context Type"];
Byte[] Data = (Byte[])FileRow["File Data"];
Response.ContentType = ContentType;
StringBuilder SB = new StringBuilder();
if (Attachment == "YES")
{
SB.Append("attachment; ");
}
SB.Append("filename=");
SB.Append(FileName);
Response.AddHeader("Content-Disposition", SB.ToString());
Response.BinaryWrite(Data);
Response.Flush();
Response.End();
return(new EmptyResult());
}
public ActionResult DeleteFile()
{
string ID = Request.QueryString["ID"];
int intID;
if (!Int32.TryParse(ID, out intID))
{
ViewData["ERROR"] = "Please provide a valid student ID";
return(View("../Shared/Error"));
}
ExistingFilesModel theModel = GetModelFromSession();
theModel.DeleteAFile(intID);
return(RedirectToAction("FileUpload"));
}
