I want to remove everything after / in domain for each line it's erasing everything after first occurance.

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;
using System.IO;

namespace SoloLearn
{
class Program
{

string str = "[e-mail]/123
[e-mail]/xyz
[e-mail]/abc";
if (str.Contains('/'))
{
int index = str.IndexOf('/');
str = str.Substring(0, index);
}
Console.WriteLine(str);

}
}

Answer 1

Use a loop :
First just print
str.Substring(0,index) ;
form a new string from value of next space like
str = str.Substring(str.IndexOf(' ', index) ;
Now repeat the same steps until end of string..

May be code already given above by @jacob
Hope it helps..

Answer 2

I was doing this for single domain so I fixed in my existing code where it takes the domain instead of doing I after getting the results. So it is only happening in the beginning once which I had to remove instead haha.. thanks everyone!

Answer 3

Jojan

If you feel like learning Regex (not too complicated).

You can parse strings very efficiently to match the desired patterns.

https://docs.microsoft.com/en-us/dotnet/api/system.text.regularexpressions.regex?view=net-6.0

Use this to generate some Regex. https://regex-generator.olafneumann.org/?sampleText=Something%40test.com%2Fxyz&flags=i&onlyPatterns=true&matchWholeLine=false&selection=9%7CCharacter,14%7CCharacter,18%7CCharacter

Your pattern would be something like @.*\..*/

Sample code from link:

using System;
using System.Text.RegularExpressions;

public class Sample
{
public static bool useRegex(String input)
{
const Regex regex = new Regex("@.*\\..*/", RegexOptions.IgnoreCase);
return regex.IsMatch(input);
}
}

Then all you need is to split the string into substrings. C# has a split method.

https://docs.microsoft.com/en-us/dotnet/api/system.text.regularexpressions.regex.split?view=net-6.0

Answer 4

Do you mean you need output 123 xyz abc?