C# - Remove an Element from an Array using Delegates

Question

I'm kind of lost here as I do not know how to proceed. Here's what I got so far:

//T[] tab initialised earlier with T elements)

public bool Delete(T element)
            {
                var find = Array.FindIndex(tab, x => x.CompareTo(element) == 0); 
                if (find == -1) // if item not found then don't do anything
                {
                    return false;
                }
                else
                {
                    tab.Remove(element); // can't use Remove with
                        return true;
                }

            }

Given Error:

Error 1 'System.Array' does not contain a definition for 'Remove' and no extension method 'Remove' accepting a first argument of type 'System.Array' could be found

An array has a fixed length, and you can't actually remove from it. One thing you can do is overwrite the existing element with "nothing". But that will leave a "hole" in the array. Like this: `tab[find] = default(T);` Depending on what `T` is you can also use `null` or `new T()`. — Jeppe Stig Nielsen, Mar 24 '13 at 17:48

cuongle · Answer 1 · 2013-03-24T17:58:25.637

4

Yes, you cannot remove element out of tab because tab is declared as array [] which does not support Remove method, if possible, declare tab as List<T>, so you are able to call Remove from List<T>

edited Mar 24 '13 at 17:58

answered Mar 24 '13 at 17:28

cuongle

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C# - Remove an Element from an Array using Delegates

1 Answers1