LINQ: Cannot implicitly convert type 'System.Collections.Generic.IEnumerable' to 'int'

Question

I get an error from the following code:

int dreamX[];

private void Form1_Load(object sender, EventArgs e)
{ 
    sumX();
}

private void sumX()
{
    for (v         


        

Answer 1

FirstOrDefault() will turn the IEnumerable into an int.

Actually it takes the first occurance in the outputresult of your linq-query.