07-24-2023, 12:26 PM
If I have:
List<string> myList1;
List<string> myList2;
myList1 = getMeAList();
// Checked myList1, it contains 4 strings
myList2 = getMeAnotherList();
// Checked myList2, it contains 6 strings
myList1.Concat(myList2);
// Checked mylist1, it contains 4 strings... why?
I ran code similar to this in Visual Studio 2008 and set break points after each execution. After `myList1 = getMeAList();`, `myList1` contains four strings, and I pressed the plus button to make sure they weren't all nulls.
After `myList2 = getMeAnotherList();`, `myList2` contains six strings, and I checked to make sure they weren't null... After `myList1.Concat(myList2);` myList1 contained only four strings. Why is that?
List<string> myList1;
List<string> myList2;
myList1 = getMeAList();
// Checked myList1, it contains 4 strings
myList2 = getMeAnotherList();
// Checked myList2, it contains 6 strings
myList1.Concat(myList2);
// Checked mylist1, it contains 4 strings... why?
I ran code similar to this in Visual Studio 2008 and set break points after each execution. After `myList1 = getMeAList();`, `myList1` contains four strings, and I pressed the plus button to make sure they weren't all nulls.
After `myList2 = getMeAnotherList();`, `myList2` contains six strings, and I checked to make sure they weren't null... After `myList1.Concat(myList2);` myList1 contained only four strings. Why is that?