Question

I have a class that the constructor requires a class and other things like:

public class SomeClass<T>
{
    //global private variables for class
    List<T> originalList = new List<T>;
    List<T> tempList = new List<T>;

    public SomClass(List<T> listParam, string name, ..etc)
    {
        originalList = listParam;
        tempList = listParam;

        originalList.removeAt(0);  // this also removes an item from tempList.


    }
}

I know this is because originalList and tempList have the same reference. How could I make them have diferent references. I use the tempList to filter results and whenever I want to refresh I use the originalList

Answer 1

You could make a copy of listParam, rather than just assigning its reference:

tempList = listParam.ToList();

Note that this does not create a copy of each object in the list, but just a copy of the references to those objects.