C# String EndsWith() Method

In C#, the EndsWith() is a string method used to check whether the ending of the current string instance matches a specified string. If it matches, it returns true; otherwise, it returns false. Using the foreach loop, we can check multiple strings. This method supports overloading by passing different types and numbers of arguments.

Example 1: Basic Usage of EndsWith() Method

True

Explanation: This example checks if the string "GeeksforGeeks" ends with "Geeks" and prints true.

Syntax of String EndsWith() Method

public bool EndsWith(string value);

public bool EndsWith(string value, StringComparison comparisonType);

public bool EndsWith(string value, bool ignoreCase, CultureInfo culture);

Parameters:

• value: The string to compare with the end of the current string.
• comparisonType: A StringComparison value that determines how strings are compared.
• ignoreCase: A bool value indicating whether to ignore case sensitivity.
• culture: A CultureInfo object specifying culture-specific comparison rules.

Return Type:

• It returns true if the given string matches the end of the current string; otherwise, returns false.

Exceptions:

• ArgumentNullException: Thrown if value is null.
• ArgumentException: Thrown if comparisonType is not a valid StringComparison value.

Example 2: Using String.EndsWith(String)

True
False

Explanation: The example checks whether s1 ends with "Geek" and s2 ends with "Hello", printing true and false accordingly.

Example 3: Removing Closing HTML Tags Using EndsWith()

<p> GeekforGeeks Computer Science Portal 
<h1> GeekforGeeks Sudo Placement 
<h2> GeekforGeeks Placement Preparation 
<h3> GeekforGeeks Contribute 

Explanation: This example iterates through an array of HTML like strings and removes their closing tags using EndsWith().

Example 4: Using Culture-Sensitive Comparison

False
True
False
False
False

Explanation: This example demonstrates how EndsWith() behaves with case sensitivity and CultureInfo settings.

Example 5: Using Different StringComparison Options

False
False
True
False
True
False

Explanation: This example demonstrates different StringComparison options to determine string endings based on culture and case sensitivity.

Important Points:

• EndsWith() checks whether a string ends with a given substring.
• It supports case-sensitive and case-insensitive comparisons.
• It can use CultureInfo for cultural-specific checks.
• It provides multiple overloads to customize comparisons.
• Using EndsWith() properly allows efficient string validation for filtering and text processing.