How to ignore reading white spaces in text file

Question

Hi Sunny Kumar and Vulpes

Usually, I do get useful solution when you both reply my questions, then it would be nice if
you reply my question also

For the below code, how to ignore reading white spaces especially when each row in my text file begins with space.

if (Files.Lenght > 0)
foreach (string file in files)
{
try
{
var list = new List<string>();

using (var reader = new StreamReader(file))
                        {
                            for (int i = 0; i < 10; i++)
                            {
                                list.Add(reader.ReadLine());
                            }
                        }
string newFileName = string.Concat(Path.GetFileNameWithoutExtension(file), "-",list[3], "-", list[8],"-",list[9],"-",list[10], "txt");
newFileName=Regex.Replace(newFileName, @"\*", "X");
newFileName = Regex.Replace(newFileName, @"\/", "");

string newFile = string.Concat(outputDirectory,"\\",newFileName,".txt");
File.Copy(file, newFile);

Vulpes · Answer

If you want to ignore all whitespace, then use Pavan's solution. If you only want to ignore leading or trailing whitespace, then use the Trim() method rather than Replace(). If you want to skip lines which are empty or only contain whitespace, then you will need to use code such as the following: using (var reader = new StreamReader(file)) { for (int i = 0; i { string temp = reader.ReadLine().Trim(); // or Replace if (temp != "") list.Add(temp); } }

Pavan Ramamurthy · Answer

use Replace(" ",""); function, It filters whitespaces

Suthish Nair · Answer

Yes Vulpes is always correct :) using (StreamReader sr = new StreamReader(@"TextFile1.txt")) { Console.WriteLine(sr.ReadLine().Trim()); //Console.WriteLine(sr.ReadToEnd().Trim()); } Console.ReadLine();

Rohit Singh Gurjar · Answer

Hi i am really new for coding I want to that is it not possible to skip blank lines while reading the file. i.e. why we are reading and then writing without blank lines ? Is it not possible to skip blank lines while reading.

How to ignore reading white spaces in text file

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Answers (4)