Performing Culture-Insensitive String Operations 

Most .NET Framework methods that perform culture-sensitive string operations by default provide method overloads that allow you to explicitly specify the culture to use by passing a CultureInfo parameter. These overloads allow you to eliminate cultural variations in case mappings and sorting rules and guarantee culture-insensitive results by specifying the CultureInfo.InvariantCulture property for the CultureInfo parameter.

This section provides the following topics to demonstrate how to perform culture-insensitive string operations using .NET Framework methods that are culture-sensitive by default.

In This Section

• Performing Culture-Insensitive String Comparisons
  Describes how to use the String.Compare and String.CompareTo methods to perform culture-insensitive string comparisons.

• Performing Culture-Insensitive Case Changes
  Describes how to use the String.ToUpper, String.ToLower, Char.ToUpper, and Char.ToLower methods to perform culture-insensitive case changes.

• Performing Culture-Insensitive String Operations in Collections
  Describes how to use the CaseInsensitiveComparer Class, CaseInsensitiveHashCodeProvider class, SortedList Class, ArrayList.Sort Method and CollectionsUtil.CreateCaseInsensitiveHashtable Method to perform culture-insensitive operations in collections.

• Performing Culture-Insensitive String Operations in Arrays
  Describes how to use the Array.Sort and Array.BinarySearch methods to perform culture-insensitive operations in arrays.

• Performing Culture-Insensitive Operations in the RegularExpressions Namespace
  Describes how to perform culture-insensitive string operations using methods in the System.Text.RegularExpressions Namespace.

Related Sections

• Culture-Insensitive String Operations
  Describes why you should be aware of culture when performing operations on strings and provides guidelines for when to perform culture-sensitive operations and when to perform culture-insensitive operations.