c#programming

I have to wrote a program solving these in an easiest way, not really know how without the mistakes, so thanks for any help. The 'file' contains whats under " John Medeic,MD 10|7|5|3|8|2|1|0|9|3|4|5|5|6|7|2|3 " Task. 1. Load and correctly interpret the data contained in the file. As a result...

I have a form with a group box that contains 3 radio buttons. When I run the form none of them are selected. I want the first radio button to always be selected when the form is run, but I'm not sure which property to change for that. I tried setting the Checked property to True but that didn't...