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C# / .NET - remove last n characters from string
0 points
In this article, we would like to show you how to remove the last n characters from the string in C# / .NET.
Quick solution:
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string text = "ABCDE";2
3
int n = 3;4
string result = text[..^n];5
Console.WriteLine(result); // AB
In this example, we use String Substring() method to create a new result substring from the text string without the last n characters.
Syntax:
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Substring (int startIndex, int length);Note:
If
lengthis not given, substring will be done fromstartIndexto the end of the text.
Practical example:
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using System;2
3
public class StringUtils4
{5
public static void Main(string[] args)6
{7
string text = "ABCDE";8
9
int n = 3;10
string result = text.Substring(0, text.Length - n);11
Console.WriteLine(result); // AB12
}13
}Output:
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ABThe range operator .. is used to make a slice of the collection.
Practical example:
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using System;2
3
public class StringUtils4
{5
public static void Main(string[] args)6
{7
string text = "ABCDE";8
9
int n = 3;10
string result = text[..^n]; // text[Range.EndAt(new Index(n, fromEnd: true))]11
Console.WriteLine(result); // AB12
}13
}Output:
xxxxxxxxxx1
ABSyntax:
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Remove (int startIndex, int count);Practical example:
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using System;2
3
public class StringUtils4
{5
public static void Main(string[] args)6
{7
string text = "ABCDE";8
9
// Remove last n characters10
int n = 3;11
string result = text.Remove(text.Length - n);12
13
Console.WriteLine(result);14
}15
}Output:
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AB