Programming in C# (NO OTHER LANGUAGE): Write an applicaton that can be used to count the frequency of characters in a paragraph. Allow the user to input several sentences using a graphical user interface. Display the count for nonzero characters. Use an array as part of your solution. Include appropriate exception handling techniques so that if the program attempts to access an element outside of the bounds of the array, the exception is handled.

Additional information: The graphical user interface described above is using a windows form application, please post sample outputs.