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Basically I have an application which contains various standard windows form controls. I want to be able to hook into one of the list boxes especially so I can read the currently selected item. I have been told this isn't programming for kids but I'm willing to kill for this knowledge:p. As far...

I need a function which will tell me if there's any media connected to the network interface when it's invoked.

Say i had in a text file steven alice I want to be able to write "sophie" on the second line but whats was there get pushed down a line hence u get steven sophie alice How would I do this? There's no method to write to a specific line in th IO.file class

I want to have a application where I type in an ip address to send a message as a string. The recieving application should read this message and take an appropriate action. How would I do this in vb.net? I would like to have two way communication ie A can send to B and B can send to A using ip...