Occurs when the file size and last modified date are received from the server
as a result of the request initiated with the GetFileSizeLastModified
The URL of the file specified in the GetFileSizeLastModified
The size of the file specified with the url
parameter (in bytes). If the file size is
not known, the fileSize is "-1". Even though the
fileSize is of String type (to support large file sizes - up to 263 bytes), it always contains integer values specifying the
file size in bytes.
The last modified date of the file
specified with the url parameter. The date format is the same as received
from the server. If the last modified date is not known, the lastModified is
"" (empty string).