/// <summary>
        /// Update disk capacity
        /// </summary>
        private void RefreshDiskCapacity()
        {
            DriveInfo[] drives = DriveInfo.GetDrives();

            foreach (DriveInfo di in drives)
            {
                // Unusable disk
                if (di.IsReady == false)
                {
                    continue;
                }

                FlowLayoutPanel flp = (di.DriveType == DriveType.Fixed) ? uiFlp_Local : uiFlp_Share;
                foreach (Control c in flp.Controls)
                {
                    if (!(c is DiskCtl))
                    {
                        continue;
                    }

                    DiskCtl ctl = c as DiskCtl;
                    if (ctl.DISK_NAME == di.Name)
                    {
                        ctl.FREE_SIZE = di.AvailableFreeSpace;
                        ctl.SetDiskCapacity();
                    }
                }
            }
        }
        /// <summary>
        /// Create disk
        /// </summary>
        private void SetDisk()
        {
            DriveInfo[] drives = DriveInfo.GetDrives();
            foreach (DriveInfo di in drives)
            {
                // Unusable disk
                if (di.IsReady == false)
                {
                    continue;
                }

                DiskCtl ctl = new DiskCtl
                {
                    DISK_TYPE  = di.DriveType,
                    DISK_NAME  = di.Name,
                    TOTAL_SIZE = di.TotalSize,
                    FREE_SIZE  = di.AvailableFreeSpace
                };

                FlowLayoutPanel flp = (ctl.DISK_TYPE == DriveType.Fixed) ? uiFlp_Local : uiFlp_Share;
                flp.Controls.Add(ctl);
            }
        }