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C# DefaultIfEmpty Method
This method is used to handle empty collections. Instead of showing an error, this method displays a default value.
We have the following list.
List<double> myList = new List<double>();
As you can see, since the above list is empty, we can display the default value.
var res = myList.DefaultIfEmpty();
Let us see an example.
Example
using System; using System.Linq; using System.Collections.Generic; class Demo { static void Main() { List<double> myList = new List<double>(); var res = myList.DefaultIfEmpty(); foreach (var a in res) { Console.WriteLine(a); } } }
Output
0
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