To better control resolution and aspect ratio of thumbnails, we recommend that you
                           use the values  CopyC#
CopyC#MaxWidth
 CopyC#
CopyC#MaxHeight
 CopyC#
CopyC#SizingPolicy
 CopyC#
CopyC#PaddingPolicy
 CopyC#
CopyC#Resolution
 CopyC#
CopyC#AspectRatio
The aspect ratio of thumbnails. Valid values include:
 CopyC#
CopyC#auto
 CopyC#
CopyC#1:1
 CopyC#
CopyC#4:3
 CopyC#
CopyC#3:2
 CopyC#
CopyC#16:9
            If you specify  CopyC#
CopyC#auto
 Declaration Syntax
 Declaration Syntax| C# | 
public string AspectRatio { get; set; }