/////////////////////////////////////////////////////////////////////////////////////////////////////
// PUBLIC PROCEDURES
/////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Gets the path for the specified item.
/// </summary>
/// <param name="item">The item.</param>
/// <returns></returns>
public static string GetPath(object item)
{
if (item is MyComputerData)
{
return("My Computer");
}
else
{
DriveData driveData = item as DriveData;
if (null != driveData)
{
return(driveData.Info.Name);
}
else
{
DirectoryData directoryData = item as DirectoryData;
if (null != directoryData)
{
return(directoryData.Info.FullName);
}
}
}
return(string.Empty);
}
/// <summary>
/// Gets the trail for the specified path.
/// </summary>
/// <param name="rootItem">The root item.</param>
/// <param name="path">The path.</param>
/// <returns></returns>
public static IList GetTrail(object rootItem, string path)
{
// Make sure the specified path is valid
if (string.IsNullOrEmpty(path))
{
return(null);
}
// If the root item was not passed, then we cannot build a trail
MyComputerData myComputerData = rootItem as MyComputerData;
if (null == myComputerData)
{
return(null);
}
// Break the path up based on the available path separators
string[] pathEntries = path.Split(new char[] { Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar },
StringSplitOptions.RemoveEmptyEntries);
if (null == pathEntries || 0 == pathEntries.Length)
{
return(null);
}
// Start to build the trail
List <object> trail = new List <object>();
trail.Add(myComputerData);
if (0 != string.Compare("My Computer", pathEntries[0], StringComparison.CurrentCultureIgnoreCase))
{
// For the remaining entries in the path, we will search the child items for a match at each level. If at any
// point we don't find a match, then we will need to cancel the conversion.
//
if (!Directory.Exists(path))
{
return(null);
}
// The split above will remove the backslash, which we need for the comparison for drives below.
string driveEntry = pathEntries[0] + "\\";
// The first entry should be a drive, so we will start there
DriveData driveData = null;
for (int driveIndex = 0; driveIndex < myComputerData.Drives.Count; driveIndex++)
{
// Get the next DriveData and see if it's a match, if so the exit the loop
driveData = myComputerData.Drives[driveIndex];
if (0 == string.Compare(driveData.Info.Name, driveEntry, StringComparison.CurrentCultureIgnoreCase))
{
break;
}
// Set to null, because we didn't find a match and we want driveData to be null in that case
driveData = null;
}
// If we found the drive, then add it to the trail and continue. Otherwise, there's a problem and we have
// failed to convert.
if (null != driveData)
{
trail.Add(driveData);
// See if there are more items, which should be all directories
if (pathEntries.Length > 1)
{
// We need to get the first directory directly from the drive object
DirectoryData directoryData = null;
for (int directoryIndex = 0; directoryIndex < driveData.Directories.Count; directoryIndex++)
{
// Get the next DirectoryData and see if it's a match, if so the exit the loop
directoryData = driveData.Directories[directoryIndex];
if (0 == string.Compare(directoryData.Info.Name, pathEntries[1], StringComparison.CurrentCultureIgnoreCase))
{
break;
}
// Set to null, because we didn't find a match and we want directoryData to be null in that case
directoryData = null;
}
// If we found the directory, then add it to the trail and continue. Otherwise, there's a problem and
// we have failed to convert.
if (null != directoryData)
{
trail.Add(directoryData);
// We are now looking for the remaining directories, which we can do in this loop
for (int index = 2; index < pathEntries.Length; index++)
{
bool found = false;
for (int directoryIndex = 0; directoryIndex < directoryData.Directories.Count; directoryIndex++)
{
// Get the next DirectoryData and see if it's a match, if so the exit the loop
DirectoryData childDirectoryData = directoryData.Directories[directoryIndex];
if (0 == string.Compare(childDirectoryData.Info.Name, pathEntries[index], StringComparison.CurrentCultureIgnoreCase))
{
found = true;
trail.Add(childDirectoryData);
directoryData = childDirectoryData;
break;
}
}
if (!found)
{
return(null);
}
}
return(trail);
}
}
else
{
return(trail);
}
}
}
else
{
return(trail);
}
return(null);
}
