Parsing IP Address to string doesn't work for some reason [closed]

问题

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Closed 4 years ago.

it's telling me this

"An unhandled exception of type 'System.FormatException' occurred in System.dll

Additional information: An invalid IP address was specified"

IPAddress ipAddr = IPAddress.Parse(richTextBox1.Text);

that's the code, richTextBox1 is the default name for a rich textbox.

i don't know why this isn't working

Edit: i'm really dumb i parsed the wrong textbox

回答1:

IPAddress.Parse does not accept spaces or other characters in the string. Use string.Trim to eliminate such characters and it should work:

var result = IpAddress.Parse(richTextBox1.Text.Trim());

来源：https://stackoverflow.com/questions/30895793/parsing-ip-address-to-string-doesnt-work-for-some-reason