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Convert Bound List to Generic List<T>

List<Component> compList = new List<Component>();

        foreach(GameObject obj in objects)   // objects is List<GameObject>

        {

            var retrievedComp = obj.GetComponent(typeof(T));

            if(retrievedComp != null)

                compList.Add(retrievedComp);

        }

 

        List<T> newList = new List<T>(compList as IEnumerable<T>); // ERROR HERE

 

        foreach(T n in newList)

            Debug.Log(n);

       

ArgumentNullException: Argument cannot be null.

Parameter name: collection

System.Collections.Generic.List`1[TestPopulateClass].CheckCollection (IEnumerable`1 collection)

System.Collections.Generic.List`1[TestPopulateClass]..ctor (IEnumerable`1 collection)

DoPopulate.AddObjectsToList[TestPopulate] (System.Reflection.FieldInfo target) (at Assets/Editor/ListPopulate/DoPopulate.cs:201)

System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)

Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.

System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)

System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters)

DoPopulate.OnGUI () (at Assets/Editor/ListPopulate/DoPopulate.cs:150)

System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)

       

List<T> newList = compList.OfType<T>().Select(x=>x).ToList()

       

List<T> compList = new List<T>(); // +++ T instead of GameObject

    foreach(GameObject obj in objects)   // objects is List<GameObject>

    {

        // ++++ explict cast to T if GetComponent does not return T

        var retrievedComp = (T)obj.GetComponent(typeof(T));

        if(retrievedComp != null)

            compList.Add(retrievedComp);

    }

 

    List<T> newList = new List<T>(compList as IEnumerable<T>); // ERROR HERE

 

    foreach(T n in newList)

        Debug.Log(n);