Gets or sets a unique identifier (GUID) of the item which is represented with this thumbnail instance.
$au.thumbnail({ //...other params... guid: "", //...other params... })Get/Set Value at Runtime
$au.thumbnail('thumbnailID').guid(value); value = $au.thumbnail('thumbnailID').guid();
Type: String
The GUID of the item which is represented with the thumbnail control.
Default value is "".
Before binding the thumbnail with some upload list item, you should specify the parent uploader control. You can do it using the parentControlName property.