How do I check for null or empty string for many arguments? - C#

Question

I have the below method, which I need to check for whether the arguments are empty or null.

    public DB Where(string field, string operat, string value, s         


        

Answer 1

You could do this:

int? GetLength(string s) {
    return s == "" ? -1 : s?.Length;
}

// s1, s2 and so on are your parameters
int? lengthSum = GetLength(s1) + GetLength(s2); // and so on
int wholeLength = (s1 + s2).Length; // and so on
if(lengthSum == wholeLength) {
    // No parameter is null or empty
}