Searching Help

I want to search a csv file say

I have a csv text in file like

rest, 23
jack,456
now,345

where first one is "word" other is "code" corresponding to the word

I want to search for code and write it in another file say four.txt

Any help would be really appreciated just point me to a direction

Thanks in advance

Quote:

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Originally Posted by Abhishek Chauhan

I want to search a csv file say
...

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Simple parse the file for commas then checking if the expression is text or numeric for example using Regex
other way is to split all the file by use of comma as the splittersign then checking each string if its numeric. Simple

i want to know if this kind of search is possible through LINQ . I have already used a regex function to split all the unnecessary charachters.

because My design was to load the file into the project and just search on it using LINQ . I've tried few times but I am not able to figure out how??