如果PictureViewer用于远程文件管理，那么可以用此属性返回 或设置其对应的FTPClient。

示例

用代码动态设置PictureViewer的FTPClient：

Dim piv As WinForm.PictureViewer = e.Form.Controls("PictureViewer1")
Dim ftp As New FTPClient
ftp.host="192.168.128.143"
ftp.Account = "yinsha"
ftp.password = "128168909"
piv.FTPclient = ftp