void ThreadPoolWorkerFileEnumeration(object state)
{
System.Diagnostics.Debug.WriteLine("ThreadPoolWorkerFileEnumeration:: Start");
ResetPublicProperties();
IsScanInProgress = true;
_start = DateTime.Now;
System.Diagnostics.Debug.WriteLine("START:: " + _start.ToString());
MainViewModel mvm = state as MainViewModel;
_dirFileEnumeration.EnumerateFiles(mvm.FolderPath);
/* remove single entries of hashes
* loop in reverse (bottom up) else when removing index from start, ordering gets corrupted.
*/
for (int i = _HashInfoFiles.Count - 1; i >= 0; i--)
{
KeyValuePair <string, List <FileDetail> > keyvalue = _HashInfoFiles.ElementAt(i);
if (keyvalue.Value.Count < 2)
{
_HashInfoFiles.Remove(keyvalue.Key);
}
else
{
foreach (var item in keyvalue.Value)
{
Application.Current.Dispatcher.Invoke((Action)(() =>
{
// access in UI thread.
DuplicateFileList.Add(item);
}));
}
}
}
_FileSizeInfo.Clear();
_HashInfoFiles.Clear();
_end = DateTime.Now;
System.Diagnostics.Debug.WriteLine("END:: " + _end.ToString());
// 3 decimal only
FileEnumTotalTimeForScan = (_end - _start).ToString();
System.Diagnostics.Debug.WriteLine("TOTAL ELAPSED TIME:: " + (_end - _start).ToString());
IsScanInProgress = false;
System.Diagnostics.Debug.WriteLine("ThreadPoolWorkerFileEnumeration:: End");
}
void ResetPublicProperties()
{
NumberOfBuckets = 0;
HashCurrentFile = null;
FileEnumCurrentFile = null;
FileEnumTotalFilesScanned = 0;
FileEnumTotalTimeForScan = null;
_FileSizeInfo.Clear();
_HashInfoFiles.Clear();
Application.Current.Dispatcher.Invoke((Action)(() =>
{
// Observable collection needs to be accessed in UI thread.
DuplicateFileList.Clear();
ErrorList.Clear();
}));
}
void ThreadPoolWorkerDeleteSelectedItems(object state)
{
System.Collections.IList list = (System.Collections.IList)state;
for (int i = list.Count - 1; i >= 0; i--)
{
FileDetail fd = (FileDetail)list[i];
try
{
File.Delete(fd.FullFilePath);
// if exception happens the error list will show which file is not deleted.
// The item will not be removed from the list as well. Helps if file is in use
// and user can close it and try again.
Application.Current.Dispatcher.Invoke((Action)(() =>
{
// access in UI thread.
DuplicateFileList.Remove(fd);
}));
}
catch (Exception Ex)
{
/*
* Update the list to reflect the errors when deleting file.
*/
Application.Current.Dispatcher.Invoke((Action)(() =>
{
// access in UI thread.
ErrorList.Add(Ex.Message);
}));
System.Diagnostics.Debug.WriteLine(Ex.Message);
}
}
System.Diagnostics.Debug.WriteLine("ThreadPoolWorkerDeleteSelectedItems..");
}
