C# Generic List TrueForAll Method

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1.00/5 (2 votes)

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For the record I have been on Google for hours trying to get more examples of this method, (The pages are more purple than a person's wardrobe who is a fanatic for the color.) so I am going to go strait to the question. Would you give me examples of use of the TrueForAll Method in the Generic List, specifically to check if all the List's objects are null and if the List is empty. Please keep the answers simple but not too simple that it gives me no usable information. Thank you very much in advance. I appreciate every answer. Have a good day. :)

Posted 21-Jul-13 15:46pm

A Fellow Coder

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Sergey Alexandrovich Kryukov 21-Jul-13 21:51pm

Why, why an example? Why searching for such examples? First of all, you should try to right code by yourself. If everyone would try to find some code, where the codes would come from? Reading of MSDN help pages should be more than enough.
—SA

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Ron Beyer · Accepted Answer · 2013-07-21T15:48:00

Solution 1

C#

List<object> items = new List(); 

//Add items, etc...

if (items.TrueForAll(item => item == null))
  //Everything is null

For the empty, just do:

C#

if (items.Count == 0)

Posted 21-Jul-13 15:48pm

Ron Beyer

Updated 21-Jul-13 16:21pm

v2

Comments

Sergey Alexandrovich Kryukov 21-Jul-13 21:54pm

Correct answer, a 5, but OP doesn't really deserve it.
—SA