public string GetFullFileName()
{
var fileName = FileName;
if (!String.IsNullOrWhiteSpace(FileExtension))
{
if (!FileExtension.Contains("."))
{
fileName += ".";
}
fileName += FileExtension;
}
return(fileName);
}
private void CollectFiles(List <string> files, string targetDirectory)
{
string[] fileEntries = Directory.GetFiles(targetDirectory);
foreach (string fileName in fileEntries)
{
string ext = Path.GetExtension(fileName);
if (!string.IsNullOrEmpty(ext) && FileExtension.Contains(ext))
{
files.Add(fileName);
System.Windows.Application.Current.Dispatcher.Invoke(new Action(() => Status = fileName));
}
}
// Recurse into subdirectories of this directory
string[] subdirectoryEntries = Directory.GetDirectories(targetDirectory);
foreach (string subdirectory in subdirectoryEntries)
{
CollectFiles(files, subdirectory);
}
}
//Asynchronuous posting with File Extension Blacklisting
/// <summary>
/// Process Multiple Posted Files with Specified File Extensions Asynchronously
/// </summary>
/// <param name="file"> Collection of files
/// </param>
/// <param name="extension">
/// file extensions to be rejected during upload eg .docx, .jpeg, .xlsx
/// </param>
public async Task <int> ProcessFilesAsync(IEnumerable <HttpPostedFileBase> file)
{
try
{
foreach (var files in file)
{
if (file != null && files.ContentLength > 0)
{
//get filename
fileName = Path.GetFileName(files.FileName);
//get file path
string serverPath = Path.Combine(HostingEnvironment.MapPath(FilePath), fileName);
//get file extensions
var FileExt = Path.GetExtension(serverPath);
//reject extensions
if (FileExtension.Contains(FileExt))
{
//blacklist.Add(FileName); //Add the blacklisted file
continue; //skip the current iteration
}
files.SaveAs(serverPath);
//Increment successful written file
fileCount = fileCount + 1;
}
}
// get number of fles written
//filesWritten = file.Count();
}
catch (Exception e)
{
e.ToString();
}
//return number of files written successfully
int result = await Task.FromResult <int>(fileCount);
return(result);
}