Question

I have structure,

public struct Test
{
    public int int1;
    public string str;
}

and in my code I have,

List<Test> list = new List<Test>()
{ 
    new Test(){ int1 =1, str="abc" }, 
    new Test(){ int1 =2, str="abc" }
};

When I am trying to use SingleOrDefault on List<Test> list with search criteria int1 value equals 3

Test result = list.SingleOrDefault(o => o.int1 == 3);

Here result have value with default values, means int1 = 0 and str = null. Here I want null value if search criteria not satisfied. Anyone point me How I can do this?

Answer 1

You will not get null returned because Test is a struct, a value type. Change Test to a class and it will return null.