store multiarray list into single array list

Question

0.00/5 (No votes)

See more:

C#

ASP.NET

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?

Posted 11-Sep-11 21:47pm

Member 8214635

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Mehdi Gholam · Answer 1 · 2011-09-11T21:52:00

Solution 1 - array lists are separate:

C#

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

Solution 2 - array lists are appended:

C#

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

MaulikDusara · Answer 2 · 2011-09-11T22:15:00

Solution 2

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

Posted 11-Sep-11 22:15pm

MaulikDusara

Mohammad A Rahman · Answer 3 · 2011-09-12T19:01:00

Solution 3

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

343-merge-generic-lists[^]

:)

Posted 12-Sep-11 19:01pm

Mohammad A Rahman