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Trim (Remove leading and trailing spaces) a string in C#
To trim a string in C#, use regular expression.
Firstly, set the pattern for regex −
string pattern = "\s+";
Let’s say the following is our string with leading and trailing spaces −
string input = " Welcome User ";
Now using Regex, set the pattern and get the result in a new string in C#.
Regex rgx = new Regex(pattern); string result = rgx.Replace(input, replacement);
The following is the complete example −
Example
using System;
using System.Text.RegularExpressions;
namespace Demo {
class Program {
static void Main(string[] args) {
string input = " Welcome User ";
string pattern = "\s+";
string replacement = " ";
Regex rgx = new Regex(pattern);
string result = rgx.Replace(input, replacement);
Console.WriteLine("Original String: {0}", input);
Console.WriteLine("Replacement String:{0}", result);
Console.ReadKey();
}
}
}
Updated on: 21-Jun-2020
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