C#: splitting a string and not returning empty string

Question

I have a string:

a = "1;2;3;"

And I would like to split it this way:

foreach (string b in a.split(';'))

How can I make sure that I return only 1, 2, 3 and not an 'empty string'?

If I split 1;2;3 then I will get what I want. But if I split 1;2;3; then I get an extra 'empty string'. I have taken suggestions and done this:

string[] batchstring = batch_idTextBox.Text.Split(';', StringSplitOptions.RemoveEmptyEntries);

However, I am getting these errors:

Error 1 The best overloaded method match for 'string.Split(params char[])' has some invalid arguments C:\Documents and Settings\agordon\My Documents\Visual Studio 2008\Projects\lomdb\EnterData\DataEntry\DAL.cs 18 36 EnterData

Error 2 Argument '2': cannot convert from 'System.StringSplitOptions' to 'char' C:\Documents and Settings\agordon\My Documents\Visual Studio 2008\Projects\lomdb\EnterData\DataEntry\DAL.cs 18 68 EnterData

qJake · Accepted Answer · 2016-10-17 19:39:05Z

68

String.Split takes an array when including any StringSplitOptions:

string[] batchstring = batch_idTextBox.Text.Split(new [] { ';' }, StringSplitOptions.RemoveEmptyEntries);

If you don't need options, the syntax becomes easier:

string[] batchstring = batch_idTextBox.Text.Split(';');

edited Oct 17, 2016 at 19:39

answered Sep 12, 2011 at 19:54

qJake

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Comments

Ry- · Accepted Answer · 2011-09-12 20:03:44Z

22

Use StringSplitOptions.

a.Split(new char[] {';'}, StringSplitOptions.RemoveEmptyEntries);

edited Sep 12, 2011 at 20:03

answered Sep 12, 2011 at 19:49

Ry-♦

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Comments

Marlon · Accepted Answer · 2011-09-12 19:54:45Z

6

Pass StringSplitOptions.RemoveEmptyEntries to the Split method.

EDIT

The Split method does not have an overload to split by a single character. You need to specify an array of characters.

foo.Split(new char[] {';'}, StringSplitOptions.RemoveEmptyEntries);

edited Sep 12, 2011 at 19:54

answered Sep 12, 2011 at 19:49

Marlon

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Eric Farr · Accepted Answer · 2011-09-12 19:53:07Z

2

Didn't know about split options. If you didn't have that you could...

a.Split(';').Where(s => s.Length > 0).ToArray();

answered Sep 12, 2011 at 19:53

Eric Farr

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James Johnson · Accepted Answer · 2011-09-12 19:57:17Z

1

Give this a shot:

string test = "1;2;3;";
test = String.Join(",", test.TrimEnd((char)59).Split((char)59));

string test = "1;2;3;";
test = String.Join(",", test.TrimEnd(';').Split(';'));

edited Sep 12, 2011 at 19:57

answered Sep 12, 2011 at 19:51

James Johnson

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Comments

shA.t · Accepted Answer · 2016-08-30 15:49:31Z

1

Use

a.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);

There are 4 overloads of .Split, two of them don't support StringSplitOptions and use the params format (so you don't need to create an array of splitters), two of them support StringSplitOptions and require an array of char or string.

edited Aug 30, 2016 at 15:49

shA.t

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answered Sep 12, 2011 at 19:53

xanatos

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Nagendra Reddy · Accepted Answer · 2017-08-31 10:33:09Z

1

string line="Hello! Have nice day."
string[] substr = line.Split(new[] {' '}, 2);

Above code will split the line into two substrings based on first space. substr[0] will have "Hello!" substr[1] will have "Have nice day.". Here 2 in Split is an integer counter, you can pass any value based on your requirement.

answered Aug 31, 2017 at 10:33

Nagendra Reddy

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