Get count of vowel and consonant in a stirng(sentence) c#

Actually i saw a question at  the forum:

Create a program that will accept a sentence and count the number of vowels, consonants and determine the length of the sentence. The space is included. see the link!

http://www.sourcecodester.com/forum/c-console-application, so if you are interested just click the link! After reading it decided to post an answer but I think its been 8 months so i might be useless for that person so I decided to post it here!

so I hope someone helps this out!

note: i used VS2010!