Export (0) Print
Expand All

TextInfo.ToTitleCase Method

Converts the specified string to titlecase.

Namespace:  System.Globalization
Assembly:  mscorlib (in mscorlib.dll)

public string ToTitleCase(
	string str
)

Parameters

str
Type: System.String
The string to convert to titlecase.

Return Value

Type: System.String
The specified string converted to titlecase.

ExceptionCondition
ArgumentNullException

str is null.

Generally, title casing converts the first character of a word to uppercase and the rest of the characters to lowercase. However, this method does not currently provide proper casing to convert a word that is entirely uppercase, such as an acronym. The following table shows the way the method renders several strings.

Input

Language

Expected result

Actual result

war and peace

English

War and Peace

War And Peace

Per anhalter durch die Galaxis

German

Per Anhalter durch die Galaxis

Per Anhalter Durch Die Galaxis

les naufragés d'ythaq

French

Les Naufragés d'Ythaq

Les Naufragés D'ythaq

As illustrated above, the ToTitleCase method provides an arbitrary casing behavior which is not necessarily linguistically correct. A linguistically correct solution would require additional rules, and the current algorithm is somewhat simpler and faster. We reserve the right to make this API slower in the future.

The current implementation of the ToTitleCase method yields an output string that is the same length as the input string. However, this behavior is not guaranteed and could change in a future implementation.

The following code example changes the casing of a string based on the English (United States) culture, with the culture name en-US.


using System;
using System.Globalization;


public class SamplesTextInfo  {

   public static void Main()  {

      // Defines the string with mixed casing.
      string myString = "wAr aNd pEaCe";

      // Creates a TextInfo based on the "en-US" culture.
      TextInfo myTI = new CultureInfo("en-US",false).TextInfo;

      // Changes a string to lowercase.
      Console.WriteLine( "\"{0}\" to lowercase: {1}", myString, myTI.ToLower( myString ) );

      // Changes a string to uppercase.
      Console.WriteLine( "\"{0}\" to uppercase: {1}", myString, myTI.ToUpper( myString ) );

      // Changes a string to titlecase.
      Console.WriteLine( "\"{0}\" to titlecase: {1}", myString, myTI.ToTitleCase( myString ) );

   }

}

/*
This code produces the following output.

"wAr aNd pEaCe" to lowercase: war and peace
"wAr aNd pEaCe" to uppercase: WAR AND PEACE
"wAr aNd pEaCe" to titlecase: War And Peace

*/


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

ADD
Show:
© 2014 Microsoft