How to remove blank spaces while reading from a text file in C#?

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I am reading a text file which contains comma separated values.
The content in the file will be as such:
ad,af,,,EndofReport
I want to read only the data with the comma separated contents.
ie:
ad,af,EndofReport without empty values in the comma separated string.

What I have tried:

Core Code as below:

string[] lines = System.IO.File.ReadAllLines(filePath);
                                    for (int j = 0; j < lines.Length; j++)
                                    {
                                      
                                        StdReportData = lines[j];
string[] words;
 words = StdReportData.Split(',');

}

Posted 13-Aug-18 19:25pm

ranio

Updated 13-Aug-18 20:02pm

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TommoDotCommo · Answer 1 · 2018-08-13T19:56:00

Solution 1

You can change

C#

words = StdReportData.Split(',');

to

C#

words = StdReportData.Split(',',StringSplitOptions.RemoveEmptyEntries);

Further reading: String.Split Method (Char[], StringSplitOptions) (System)[^]

Posted 13-Aug-18 19:56pm

TommoDotCommo

OriginalGriff · Answer 2 · 2018-08-13T19:57:00

Solution 2

The best solution is "don't" - CSV data isn't just "separated by comma" it can also contain quoted strings, which can legitimately contain commas.

Instead of "rolling your own" solution here, have a look at this: A Fast CSV Reader[^] - it does all the hard work for you!

Posted 13-Aug-18 19:57pm

OriginalGriff

Comments

TommoDotCommo 14-Aug-18 2:03am

Or https://joshclose.github.io/CsvHelper/ for more up to date.

Rajneesh Kumar Verma · Answer 3 · 2018-08-13T20:02:00

Try as below:

C#

string[] lines = System.IO.File.ReadAllLines(filePath);
            for (int j = 0; j < lines.Length; j++)
            {

                var StdReportData = lines[j];
                string[] words;
                words = StdReportData.Split(',')
                    .Select(x => x.Trim())
                    .Where(x => !string.IsNullOrWhiteSpace(x))
                    .ToArray();

            }