将多数组列表存储到单数组列表中 [英] store multiarray list into single array list

问题描述

大家好，


我有一个4 arraylist.我想将所有arraylist存储在单个arraylist中.

hi guys,


i have a 4 arraylist. i want to store all arraylist in a single arraylist. can i know how can i do this?

推荐答案

解决方案1-数组列表是分开的:

Solution 1 - array lists are separate:

ArrayList big = new ArrayList();
big.Add(arraylist1);
big.Add(arraylist2);
big.Add(arraylist3);
big.Add(arraylist4);

解决方案2-附加了数组列表:

Solution 2 - array lists are appended:

ArrayList big = new ArrayList();
big.AddRange(arraylist1.ToArray());
big.AddRange(arraylist2.ToArray());
big.AddRange(arraylist3.ToArray());
big.AddRange(arraylist4.ToArray());

您将从此处获得答案，并从此处 [ ^ ]

Hi,
your will get answer from here, and also know about Array and ArrayList from Here[^]

您可能会考虑将List< t>而不是ArrayList看看这个，

343-merge-generic-lists [

You might consider List<t> instead of ArrayList and have a look this,

343-merge-generic-lists[^]

:)

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