Item
Item is an element displayed within the ASPxFileManager that can be represented by a file or folder.
To specify an items appearance style, use the FileManagerStyles.Item property. Note, these style settings can be overridden by FileManagerStyles.File, FileManagerStyles.FileAreaFolder, and FileManagerStyles.Folder properties.
Templates
You can specify a common template used for displaying the content of all items in the file list when it is in thumbnails view mode by using the FileManagerFileListThumbnailsViewSettings.ItemTemplate property. (See demo: Templates)
To specify a common template used for displaying the content of all items in a details view column, use the FileManagerDetailsColumn.ItemTemplate property.