Unreachable code detected in case statement

Question

I have a code:

    protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
    {
        switch (keyData)
        {
            case Keys.Alt|Ke         


        

Answer 1

Bitter experience has taught me to always include break statements unless you really mean to fallthrough to the next statement and even then, comment it. Otherwise a function could behave wildly differently because another developer changed something late on a Friday afternoon and didn't see the missing break.

If the function - however large - conforms to the same if...return...else....return structure throughout, you could define a return code variable at the start of the function. Then assign it in your case statement and return it at the end, whatever value it turns out to be.