by Sai gowtham

How to get the Maximum Value from a list in C#

Learn, how to get the maximum value from a list in C# with the help of examples.

Consider, we have a following list in our code.

List<int> numsList = new List<int>() {10, 23, 400, -2, 0, 12, 3};

Now, we need to get the maximum value from a above list in C#.

Get the Maximum value from a list

To get the maximum value from a list in C#, we can use the built-in Linq Max() method. So, It returns the maximum value from the given list.

Here is an example:

using System;
using System.Linq;
using System.Collections.Generic;

class GetMaximumValue {
  static void Main() {
      List<int> numsList = new List<int>() {10, 23, 400, -2, 0, 12, 3};
      int maxValue = numsList.Max();
      Console.WriteLine(maxValue);
  }
}

Output:

400

In the example above, we have used the Max() method on a numsList. So, it returns the Maximum value 400 from it.

The Max() in C# returns the maximum value from the sequence of values.

The above method only works if the list is not empty. So, if a user passes an empty list we can return a value 0 instead of error InvalidOperationException in terminal with the help of Any() method.

using System;
using System.Linq;
using System.Collections.Generic;

class GetMaximumValue {
  static void Main() {
      List<int> numsList = new List<int>() {};
      int maxValue = numsList.Any() ? numsList.Min() : 0;
      Console.WriteLine(maxValue);
  }
}

Output:

0

Similarly, you can also get the lowest value from a list by using the Min() method in C#.

using System;
using System.Linq;
using System.Collections.Generic;

class GetLowestValue {
  static void Main() {
      List<int> numsList = new List<int>() {100, 23, 40, -2, 0, 12, 3};
      int lowestValue = numsList.Min();
      Console.WriteLine(lowestValue);
  }
}

Output:

-2

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