MiSheps
asked on
c# - Getting error on Host to IP conversion if I don't have connectivity - Help! :-)
Greetings Experts,
I have the following code:
IPAddress[] addresslist = Dns.GetHostAddresses("www.google.com");
foreach (IPAddress theaddress in addresslist)
{
MessageBox.Show(theaddress .ToString( ));
}
Which works GREAT.... as long as I actually have network connectivity, but when I don't have network connectivity, as I would suspect, I get an error on the following line:
IPAddress[] addresslist = Dns.GetHostAddresses("www.google.com");
Which makes sense to me, because the app wouldn't have access to dns without network connectivity...
But.. my question is... how do I handle the error? what I would like to do, in the event of an error would be to:
theaddress = "1.1.1.1";
So, the Question is, how do I handle the error, and as a result of the error, set theaddress to "1.1.1.1"?
Thanks!
I have the following code:
IPAddress[] addresslist = Dns.GetHostAddresses("www.google.com");
foreach (IPAddress theaddress in addresslist)
{
MessageBox.Show(theaddress
}
Which works GREAT.... as long as I actually have network connectivity, but when I don't have network connectivity, as I would suspect, I get an error on the following line:
IPAddress[] addresslist = Dns.GetHostAddresses("www.google.com");
Which makes sense to me, because the app wouldn't have access to dns without network connectivity...
But.. my question is... how do I handle the error? what I would like to do, in the event of an error would be to:
theaddress = "1.1.1.1";
So, the Question is, how do I handle the error, and as a result of the error, set theaddress to "1.1.1.1"?
Thanks!
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ASKER
scratch that, I just didn't understand that "try" was part of the code, figured it out though, and your solution works well, with a small bit added.
Good help, thanks for the info!
Here is what I ended up with:
Good help, thanks for the info!
Here is what I ended up with:
bool SkipServerIPConvert;
// Convert IP for "Other" Server
// #############################
SkipServerIPConvert == false;
try
{
IPAddress[] addresslist = Dns.GetHostAddresses(MyGlobalVariables.OtherServer);
}
catch (Exception e)
{
MyGlobalVariables.OtherServer = "1.1.1.1";
SkipServerIPConvert = true;
}
if (SkipServerIPConvert == false)
{
IPAddress[] addresslist = Dns.GetHostAddresses(MyGlobalVariables.OtherServer);
foreach (IPAddress theaddress in addresslist)
{
MyGlobalVariables.OtherServer = theaddress.ToString();
}
}
// #############################
ASKER