Adding string array (string[]) to List<string> c#

Question

When the string[], _lineParts is added to the List, all I see in the List is "System.String[]" What needs to be done to see the actually string[] values in the list.

while (_aLine != null) 
{ 
    //split the line read into parts delimited by commas 
    _lineParts = _aLine.Split(new char[] { ' ', '\u000A', ',', '.', ';', ':', '-', '_', '/' }, 
        StringSplitOptions.RemoveEmptyEntries); 
    //keep things going by reading the next  line 
    _aLine = sr.ReadLine(); 
    //words = _lineParts; 
    if (_lineParts != null) 
    { 
        //_words.Add(_lineParts.ToString()); 
        wrd.Add(_lineParts.ToString()); 
    } 
}

You're not adding _lineParts to the list, you're adding _lineParts.ToString() to the list. The default behavior of ToString() for reference types is to output the type name, which in this case is System.String[]. Are you trying to add each individual element from the array to the list? Or are you trying to add the entire array as a single element to the list? — David
– David, Commented Oct 14, 2012 at 13:46

Claus Jørgensen · Accepted Answer · 2019-12-04 10:11:12Z

85

Use List.AddRange instead of List.Add

edited Dec 4, 2019 at 10:11

answered Oct 14, 2012 at 13:44

Claus Jørgensen

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Comments

Kolappan N · Accepted Answer · 2018-07-05 13:28:03Z

27

Use List.AddRange instead of List.Add

Change

 wrd.Add(_lineParts.ToString());

To

wrd.AddRange(_lineParts);

edited Jul 5, 2018 at 13:28

Kolappan N

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answered Oct 14, 2012 at 13:47

Adil

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1 Comment

jebbie Over a year ago

nice - suddenly i remember why i love javascript :-P

A Coder · Accepted Answer · 2016-12-09 10:41:12Z

5

You can use List.AddRange() where you are using List.Add()

edited Dec 9, 2016 at 10:41

A Coder

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answered Oct 14, 2012 at 13:45

Rahul Tripathi

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