Count Number of Occurrences of a Character in String ASP.NET C#

In this ASP.NET Video tutorial, i am going to show you, Occurrence of character in given string. Suppose you have a string like 'billy' then this program show that how many times character 'b' is in it.

[ikocatepe]

What if you'd like your output to be in descending order (by the count)?
I mean, what would you do to get:
6 //there are 6 spaces
e 5 //there are 5 "e"s
n 4 //there are 4 "n"s
...
and so on until you get all the characters ordered descending number of occurences?

[kishorekumar]

how to count "word" and count "line" . can you upload a video for that.