Checking COM Port Availability in C#

Posted by Jim Fell on Stack Overflow See other posts from Stack Overflow or by Jim Fell
Published on 2010-05-20T14:08:50Z Indexed on 2010/05/20 14:10 UTC
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Filed under:

c#

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comports

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resources

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serial-communications

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wmi

Hello. My C# application populates a comboBox with the COM ports found on the system. I would like the mark the COM ports that are in use as such. I know that I can use try / catch blocks to attempt to open every COM port, but I was wondering if there is a more graceful way to do this. Perhaps using a WMI query? I am using Microsoft Visual C# 2008 Express Edition (.NET 2.0). Any thoughts or suggestions you may have would be appreciated. Thanks.

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