No such host is known

[Guoqi Zheng]

This is an email application. I need to connect to the pop server user
specify. However, when they input an invalide host name, they will get an
error message saying that No such host is known.

How can I validate the host and give them an predefined error message to
correct it?

--
Kind regards

Guoqi Zheng
guoqi AT meetholland dot com
Http://www.meetholland.com

[Hermit Dave]

handle the exception thrown when the user enters a wrong host name

try
{
// your code
}
catch(Exception ex)
{
// whatever way you wish to handle the error
}

--

Regards,

Hermit Dave (D'way)
http://hdave.blogspot.com

(I hear what you're saying.. but lets try it my way first)

"Guoqi Zheng" <[e-mail]> wrote in message
news:uJ**************@TK2MSFTNGP11.phx.gbl...

This is an email application. I need to connect to the pop server user
specify. However, when they input an invalide host name, they will get an
error message saying that No such host is known.

How can I validate the host and give them an predefined error message to
correct it?

--
Kind regards

Guoqi Zheng
guoqi AT meetholland dot com
Http://www.meetholland.com

[bruce barker]

you can do a dns lookup. this will not validate the port, login, and
password though.

-- bruce (sqlwork.com)


"Guoqi Zheng" <[e-mail]> wrote in message
news:uJ**************@TK2MSFTNGP11.phx.gbl...

This is an email application. I need to connect to the pop server user
specify. However, when they input an invalide host name, they will get an
error message saying that No such host is known.

How can I validate the host and give them an predefined error message to
correct it?

--
Kind regards

Guoqi Zheng
guoqi AT meetholland dot com
Http://www.meetholland.com