public IEnumerable <IListItemEx> GetContents(Boolean isEnumHidden)
{
var folder = this.GetIShellFolder();
if (folder == null)
{
yield return(null);
}
HResult navRes;
var flags = SHCONTF.FOLDERS | SHCONTF.NONFOLDERS | SHCONTF.CHECKING_FOR_CHILDREN | SHCONTF.ENABLE_ASYNC;
if (isEnumHidden)
{
flags = SHCONTF.FOLDERS | SHCONTF.INCLUDEHIDDEN | SHCONTF.INCLUDESUPERHIDDEN | SHCONTF.NONFOLDERS | SHCONTF.CHECKING_FOR_CHILDREN | SHCONTF.ENABLE_ASYNC;
}
var enumId = ShellItem.GetIEnumIDList(folder, flags, out navRes);
this.NavigationStatus = navRes;
uint count;
IntPtr pidl;
if (enumId == null)
{
yield break;
}
var result = enumId.Next(1, out pidl, out count);
var i = 0;
while (result == HResult.S_OK)
{
//var sb = new StringBuilder(512);
//Shell32.SHGetPathFromIDList(pidl, sb);
//var ext = Path.GetExtension(sb.ToString());
var fsi = new FileSystemListItem();
try {
fsi.InitializeWithParent(this.PIDL, this.ParentHandle, pidl, i++);
} catch {
continue;
}
fsi.IsParentSearchFolder = this.IsSearchFolder;
yield return(fsi);
//Shell32.ILFree(pidl);
result = enumId.Next(1, out pidl, out count);
}
if (result != HResult.S_FALSE)
{
//Marshal.ThrowExceptionForHR((int)result);
}
//parentItem.Dispose();
yield break;
}
IListItemEx[] IListItemEx.GetSubItems(bool isEnumHidden)
{
TaskScheduler taskScheduler = null;
try {
taskScheduler = TaskScheduler.FromCurrentSynchronizationContext();
}
catch (InvalidOperationException) {
SynchronizationContext.SetSynchronizationContext(new SynchronizationContext());
taskScheduler = TaskScheduler.FromCurrentSynchronizationContext();
}
Task <FileSystemListItem[]> taskk = Task.Factory.StartNew(() => {
var fsiList = new List <FileSystemListItem>();
IShellFolder folder = this.GetIShellFolder();
HResult navRes;
IEnumIDList enumId = ShellItem.GetIEnumIDList(folder, SHCONTF.FOLDERS | SHCONTF.INCLUDEHIDDEN | SHCONTF.INCLUDESUPERHIDDEN | SHCONTF.FASTITEMS |
SHCONTF.NONFOLDERS | SHCONTF.ENABLE_ASYNC, out navRes);
this.NavigationStatus = navRes;
uint count;
IntPtr pidl;
//if (enumId == null) {
// break;
//}
System.Windows.Forms.Application.DoEvents();
//Thread.Sleep(1);
//HResult result = enumId.Next(1, out pidl, out count);
var i = 0;
var parentItem = this.IsSearchFolder ? this._Item : new ShellItem(this.ParsingName.ToShellParsingName());
while (enumId.Next(1, out pidl, out count) == HResult.S_OK)
{
var fsi = new FileSystemListItem();
fsi.InitializeWithParent(parentItem, this.ParentHandle, pidl, i++);
fsiList.Add(fsi);
Shell32.ILFree(pidl);
//if (this.IsSearchFolder)
// Thread.Sleep(1);
//System.Windows.Forms.Application.DoEvents();
//result = enumId.Next(1, out pidl, out count);
}
//if (result != HResult.S_FALSE) {
//Marshal.ThrowExceptionForHR((int)result);
//}
parentItem.Dispose();
return(fsiList.ToArray());
//yield break;
}, CancellationToken.None, TaskCreationOptions.None, taskScheduler);
//taskk.Start(TaskScheduler.FromCurrentSynchronizationContext());
taskk.Wait();
return(taskk.Result);
}
public IEnumerator <IListItemEx> GetEnumerator()
{
var folder = this.GetIShellFolder();
if (folder == null)
{
yield return(null);
}
HResult navRes;
var flags = SHCONTF.FOLDERS | SHCONTF.INCLUDEHIDDEN | SHCONTF.INCLUDESUPERHIDDEN | SHCONTF.FASTITEMS | SHCONTF.NONFOLDERS | SHCONTF.ENABLE_ASYNC | SHCONTF.INIT_ON_FIRST_NEXT;
var enumId = ShellItem.GetIEnumIDList(folder, flags, out navRes);
this.NavigationStatus = navRes;
uint count;
IntPtr pidl;
if (enumId == null)
{
yield break;
}
var result = enumId.Next(1, out pidl, out count);
var i = 0;
while (result == HResult.S_OK)
{
var fsi = new FileSystemListItem();
try {
fsi.InitializeWithParent(this.PIDL, this.ParentHandle, pidl, i++);
} catch {
continue;
}
fsi.IsParentSearchFolder = this.IsSearchFolder;
fsi.Dispose();
yield return(fsi);
result = enumId.Next(1, out pidl, out count);
}
if (folder != null)
{
Marshal.ReleaseComObject(folder);
}
if (result != HResult.S_FALSE)
{
//Marshal.ThrowExceptionForHR((int)result);
}
yield break;
}
public IEnumerator <IListItemEx> GetEnumerator()
{
IShellFolder folder = this.GetIShellFolder();
if (folder == null)
{
yield return(null);
}
HResult navRes;
IEnumIDList enumId = ShellItem.GetIEnumIDList(folder, SHCONTF.FOLDERS | SHCONTF.INCLUDEHIDDEN | SHCONTF.INCLUDESUPERHIDDEN | SHCONTF.FASTITEMS |
SHCONTF.NONFOLDERS | SHCONTF.ENABLE_ASYNC | SHCONTF.INIT_ON_FIRST_NEXT, out navRes);
this.NavigationStatus = navRes;
uint count;
IntPtr pidl;
if (enumId == null)
{
yield break;
}
HResult result = enumId.Next(1, out pidl, out count);
var i = 0;
//var parentItem = new ShellItem(this._Item.Pidl); //this._Item;//this.IsSearchFolder ? this._Item : new ShellItem(this.ParsingName.ToShellParsingName());
while (result == HResult.S_OK)
{
var fsi = new FileSystemListItem();
try {
fsi.InitializeWithParent(this._Item, this.ParentHandle, pidl, i++);
}
catch {
continue;
}
fsi.IsParentSearchFolder = this.IsSearchFolder;
yield return(fsi);
Shell32.ILFree(pidl);
result = enumId.Next(1, out pidl, out count);
}
if (result != HResult.S_FALSE)
{
//Marshal.ThrowExceptionForHR((int)result);
}
//parentItem.Dispose();
yield break;
}
public IEnumerable <IntPtr> GetItemsForCount(Boolean isEnumHidden)
{
var folder = this.GetIShellFolder();
if (folder == null)
{
yield return(IntPtr.Zero);
}
HResult navRes;
var flags = SHCONTF.FOLDERS | SHCONTF.FASTITEMS | SHCONTF.NONFOLDERS | SHCONTF.ENABLE_ASYNC | SHCONTF.INIT_ON_FIRST_NEXT;
if (isEnumHidden)
{
flags = SHCONTF.FOLDERS | SHCONTF.INCLUDEHIDDEN | SHCONTF.INCLUDESUPERHIDDEN | SHCONTF.FASTITEMS | SHCONTF.NONFOLDERS | SHCONTF.ENABLE_ASYNC | SHCONTF.INIT_ON_FIRST_NEXT;
}
var enumId = ShellItem.GetIEnumIDList(folder, flags, out navRes);
this.NavigationStatus = navRes;
uint count;
IntPtr pidl;
if (enumId == null)
{
yield break;
}
var result = enumId.Next(1, out pidl, out count);
while (result == HResult.S_OK)
{
yield return(pidl);
Shell32.ILFree(pidl);
result = enumId.Next(1, out pidl, out count);
}
if (folder != null)
{
Marshal.ReleaseComObject(folder);
}
if (result != HResult.S_FALSE)
{
//Marshal.ThrowExceptionForHR((int)result);
}
yield break;
}