CODEWITHSUNDEEP
c#wpfwinformslistbox
toghrul-nasirli
toghrul-nasirli

Reputation: 302

How can I read the file without empty line

I have listBox and this text file: " 1 2 3 4 'blank line' " I want to read this file without blank line. I try this: 

using (StreamReader reader = new StreamReader("MyMessages.chat"))
            {
                var line = reader.ReadToEnd().Split('\n');

                for (int i = 0; i < line.Length; i++)
                {
                    if (line[i] != " ")
                    {
                        listBox.Items.Add(line[i]);
                        listBox.Visibility = Visibility.Visible;
                    }
                }
            }

But it doesn't work

Upvotes: 0

Views: 2999

Answers (1)

TheGeneral
TheGeneral

Reputation: 81483

You could just use File.ReadAllLines with a Where

Example

var listOfLines = File.ReadAllLines(path)
                      .Where(x => !string.IsNullOrWhiteSpace(x));

// add items to list box here

File.ReadAllLines Method

Opens a text file, reads all lines of the file into a string array, and then closes the file.

String.IsNullOrWhiteSpace(String) Method

Indicates whether a specified string is null, empty, or consists only of white-space characters.

Enumerable.Where Method

Filters a sequence of values based on a predicate.

Upvotes: 5

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