Yes, you can use
online converters[
^], but i need to warn you:
- you have no guarantee that everything would be work perfect
- vb6 is 'old' programming language and does not use .net technologies
- c# is case sensitive, vb6 not; some variables could not be initialized correctly
- vb6 enables to use global variables; c# not
- etc.
Final conclusion: write your application in C# from the beginning to the end by yourself!