c# - Remove text after a string occurrence -

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i have string has following format:

string sample = "a, abc, 1, acs,,"

as can see, there 5 occurences of , character. need remove everything after 4th occurrence final result be:

string result = fx(sample, 4); "a, abc, 1, acs"

is possible without foreach? in advance.

you this: 

sample.split(',').take(4).aggregate((s1, s2) => s1 + "," + s2).substring(1);

this split string @ comma , take first 4 parts ("a", " abc", " 1", " acs"), concat them 1 string aggregate (result: ",a, abc, 1, acs") , return except first character. result: "a, abc, 1, acs".


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