How would it be possible to find out if a string for example testing

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Editorial Team

Asked: May 28, 20262026-05-28T05:16:41+00:00 2026-05-28T05:16:41+00:00

How would it be possible to find out if a string for example “testing” is within a text file or not?

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Editorial Team · Answer 1 · 2026-05-28T05:16:42+00:00

Editorial Team

Assuming your Text File is not too big you can use this function

public static bool IsStringInFile(string fileName, string searchString)
{
    return File.ReadAllText(fileName).Contains(searchString);
}

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