Drive select box with icons in windows form.

Question

Is there any windows form control that shows list of drive letters with icons?

Answer 1

If you are willing to pay for this, you could check out http://viewpack.qarchive.org/.

I'm not aware of any free controls.

Answer 2

No, but I'm sure you could make it happen, shouldn't be too tricky, either with a TreeView or if you would just like the list then you could use a ListView.

The code to get the drives would be similar to this:

//Get all Drives
DriveInfo[] ListAllDrives = DriveInfo.GetDrives();

To determine the icons for the ListViewItem or TreeViewNodes you could do something like this:

foreach (DriveInfo Drive in ListAllDrives)
{
    //Create ListViewItem, give name etc.
    ListViewItem NewItem = new ListViewItem();
    NewItem.Text = Drive.Name;

    //Check type and get icon required.
    if (Drive.DriveType.Removable)
    {
    //Set Icon as Removable Icon
    }    
    //else if (Drive Type is other... etc. etc.)
}

Answer 3

I've finally came up with my own control.

I fill a listview with drives as follows:

listView1.SmallImageList = new ImageList();
var drives = DriveInfo.GetDrives()
       .Where(x => x.DriveType == DriveType.Removable)
       .Select(x => x.Name.Replace("\\",""));
foreach (var driveName in drives)
{
 listView1.SmallImageList.Images.Add(driveName, GetFileIcon(driveName));
 listView1.Items.Add(driveName, driveName);
}

Where GetFileIcon is my own method that calls SHGetFileInfo:

IntPtr hImgSmall;    //the handle to the system image list
SHFILEINFO shinfo = new SHFILEINFO();
//Use this to get the small Icon
hImgSmall = Win32.SHGetFileInfo(fileName, 0, ref shinfo,
          (uint)Marshal.SizeOf(shinfo),
        Win32.SHGFI_ICON |
        Win32.SHGFI_SMALLICON);

return System.Drawing.Icon.FromHandle(shinfo.hIcon);

Win32 class is copied as is form this site and looks as follows:

[StructLayout(LayoutKind.Sequential)]
public struct SHFILEINFO
{
 public IntPtr hIcon;
 public IntPtr iIcon;
 public uint dwAttributes;
 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
 public string szDisplayName;
 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
 public string szTypeName;
};

class Win32
{
 public const uint SHGFI_ICON = 0x100;
 public const uint SHGFI_LARGEICON = 0x0;    // 'Large icon
 public const uint SHGFI_SMALLICON = 0x1;    // 'Small icon

 [DllImport("shell32.dll")]
 public static extern IntPtr SHGetFileInfo(string pszPath,
  uint dwFileAttributes,
  ref SHFILEINFO psfi,
  uint cbSizeFileInfo,
  uint uFlags);
}

I hope it will help someone.