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C# Program to return the only element that satisfies a condition
The Single() method returns the only element that satisfies a condition. If more than one such element is visible, then an error is thrown.
The following is our string array.
string[] str = { "jack", "tom", "henry", "time"};Now, use the Single() method to get each element. Then, we have used Lambda Expression to calculate an element whose length is greater than four.
str.AsQueryable().Single(name => name.Length > 4);
Example
using System;
using System.Linq;
using System.Collections.Generic;
public class Demo {
public static void Main() {
string[] str = { "jack", "tom", "henry", "time"};
// finding string whose length is greater than 4
string res = str.AsQueryable().Single(name => name.Length > 4);
Console.WriteLine(res);
}
}Output
henry
Updated on: 23-Jun-2020
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