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How would you count occurences of a string within a string (C#)?

how do I get the count of the occurrences of '#' in a string ?

something like int RowFormat = drr[3].ToString("#").Length;

example string "grtkj####mfr "

RowFormat must return 4

and yes ^_^ .NET 3.5

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  • 2
    See this question: stackoverflow.com/questions/541954/… Commented Mar 16, 2010 at 13:20
  • thank you all <3 so many answers Commented Mar 16, 2010 at 13:26

4 Answers 4

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int RowFormat = "grtkj####mfr".Count(ch => ch == '#');
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Also, when posting a LINQ query, it is still sometimes a good idea to mention that it only works >3.5 unless the questions specifically mentions version. No better answer given the constraints though.
2

With LINQ (that's all the rage these days):

int RowFormat = drr[3].Count(x => x == '#');
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1

Check this

"grtkj####mfr".Split(new char[]{'#'}).Length-1

hope that will help.

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int RowFormat = new Regex("#").Matches("grtkj####mfr").Count;
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