public string GetFileInfo(IFileInfoProvider provider, string columnName, ShellItem item)
{
string retVal = string.Empty;
ShellAPI.STATSTG info = provider.GetFileInfo();
switch (columnName)
{
case "Size":
#region Size
{
retVal = GetSizeString(info.cbSize);
}
#endregion
break;
case "Date Created":
#region Date Created
{
DateTime dateTime = ShellAPI.FileTimeToDateTime(info.ctime);
string time = dateTime.ToLongTimeString();
retVal = string.Format("{0} {1}",
dateTime.ToShortDateString(),
time.Remove(time.Length - 3, 3));
}
#endregion
break;
case "Date Modified":
#region Date Modified
{
DateTime dateTime = ShellAPI.FileTimeToDateTime(info.mtime);
string time = dateTime.ToLongTimeString();
retVal = string.Format("{0} {1}",
dateTime.ToShortDateString(),
time.Remove(time.Length - 3, 3));
}
#endregion
break;
}
return(retVal);
}
public string GetFolderInfo(IDirInfoProvider provider, string columnName, ShellItem item)
{
string retVal = string.Empty;
if (columnName != "Size" && !item.IsSystemFolder && !item.IsDisk && item.IsFileSystem)
{
ShellAPI.STATSTG info = provider.GetDirInfo();
switch (columnName)
{
case "Date Created":
#region Date Created
{
DateTime dateTime = ShellAPI.FileTimeToDateTime(info.ctime);
string time = dateTime.ToLongTimeString();
retVal = string.Format("{0} {1}",
dateTime.ToShortDateString(),
time.Remove(time.Length - 3, 3));
}
#endregion
break;
case "Date Modified":
#region Date Modified
{
DateTime dateTime = ShellAPI.FileTimeToDateTime(info.mtime);
string time = dateTime.ToLongTimeString();
retVal = string.Format("{0} {1}",
dateTime.ToShortDateString(),
time.Remove(time.Length - 3, 3));
}
#endregion
break;
}
}
return(retVal);
}
/// <summary>
/// return STATSTG info of a file.
/// </summary>
internal static bool getFileStat(IStorage parentStorage, string filename, out ShellAPI.STATSTG statstg)
{
IntPtr streamPtr = IntPtr.Zero;
IStream stream = null;
statstg = new ShellAPI.STATSTG();
try
{
if (parentStorage.OpenStream(
filename,
IntPtr.Zero,
ShellAPI.STGM.READ,
0,
out streamPtr) == ShellAPI.S_OK)
{
stream = (IStream)Marshal.GetTypedObjectForIUnknown(streamPtr, typeof(IStream));
stream.Stat(out statstg, ShellAPI.STATFLAG.DEFAULT);
return(true);
}
}
finally
{
if (stream != null)
{
Marshal.ReleaseComObject(stream);
stream = null;
}
if (streamPtr != IntPtr.Zero)
{
Marshal.Release(streamPtr);
streamPtr = IntPtr.Zero;
}
}
return(false);
}
public int Stat(out ShellAPI.STATSTG pstatstg, ShellAPI.STATFLAG grfStatFlag)
{
return(_iStorage.Stat(out pstatstg, grfStatFlag));
}