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CompareInfo.LastIndexOf Method

Returns the zero-based index of the last occurrence of a value within a string or within a portion of it.

Overload List

Searches for the specified character and returns the zero-based index of the last occurrence within the entire source string.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, Char) As Integer
[C#] public virtual int LastIndexOf(string, char);
[C++] public: virtual int LastIndexOf(String*, __wchar_t);
[JScript] public function LastIndexOf(String, Char) : int;

Searches for the specified substring and returns the zero-based index of the last occurrence within the entire source string.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, String) As Integer
[C#] public virtual int LastIndexOf(string, string);
[C++] public: virtual int LastIndexOf(String*, String*);
[JScript] public function LastIndexOf(String, String) : int;

Searches for the specified character and returns the zero-based index of the last occurrence within the entire source string using the specified CompareOptions value.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, Char, CompareOptions) As Integer
[C#] public virtual int LastIndexOf(string, char, CompareOptions);
[C++] public: virtual int LastIndexOf(String*, __wchar_t, CompareOptions);
[JScript] public function LastIndexOf(String, Char, CompareOptions) : int;

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, Char, Integer) As Integer
[C#] public virtual int LastIndexOf(string, char, int);
[C++] public: virtual int LastIndexOf(String*, __wchar_t, int);
[JScript] public function LastIndexOf(String, Char, int) : int;

Searches for the specified substring and returns the zero-based index of the last occurrence within the entire source string using the specified CompareOptions value.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, String, CompareOptions) As Integer
[C#] public virtual int LastIndexOf(string, string, CompareOptions);
[C++] public: virtual int LastIndexOf(String*, String*, CompareOptions);
[JScript] public function LastIndexOf(String, String, CompareOptions) : int;

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, String, Integer) As Integer
[C#] public virtual int LastIndexOf(string, string, int);
[C++] public: virtual int LastIndexOf(String*, String*, int);
[JScript] public function LastIndexOf(String, String, int) : int;

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index using the specified CompareOptions value.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, Char, Integer, CompareOptions) As Integer
[C#] public virtual int LastIndexOf(string, char, int, CompareOptions);
[C++] public: virtual int LastIndexOf(String*, __wchar_t, int, CompareOptions);
[JScript] public function LastIndexOf(String, Char, int, CompareOptions) : int;

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, Char, Integer, Integer) As Integer
[C#] public virtual int LastIndexOf(string, char, int, int);
[C++] public: virtual int LastIndexOf(String*, __wchar_t, int, int);
[JScript] public function LastIndexOf(String, Char, int, int) : int;

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index using the specified CompareOptions value.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, String, Integer, CompareOptions) As Integer
[C#] public virtual int LastIndexOf(string, string, int, CompareOptions);
[C++] public: virtual int LastIndexOf(String*, String*, int, CompareOptions);
[JScript] public function LastIndexOf(String, String, int, CompareOptions) : int;

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, String, Integer, Integer) As Integer
[C#] public virtual int LastIndexOf(string, string, int, int);
[C++] public: virtual int LastIndexOf(String*, String*, int, int);
[JScript] public function LastIndexOf(String, String, int, int) : int;

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index using the specified CompareOptions value.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, Char, Integer, Integer, CompareOptions) As Integer
[C#] public virtual int LastIndexOf(string, char, int, int, CompareOptions);
[C++] public: virtual int LastIndexOf(String*, __wchar_t, int, int, CompareOptions);
[JScript] public function LastIndexOf(String, Char, int, int, CompareOptions) : int;

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index using the specified CompareOptions value.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Overridable Function LastIndexOf(String, String, Integer, Integer, CompareOptions) As Integer
[C#] public virtual int LastIndexOf(string, string, int, int, CompareOptions);
[C++] public: virtual int LastIndexOf(String*, String*, int, int, CompareOptions);
[JScript] public function LastIndexOf(String, String, int, int, CompareOptions) : int;

Example

[Visual Basic, C#, C++] The following code example determines the indexes of the first and last occurrences of a character or a substring within a portion of a string.

[Visual Basic, C#, C++] Note   This example shows how to use one of the overloaded versions of LastIndexOf. For other examples that might be available, see the individual overload topics.
[Visual Basic] 
Imports System
Imports System.Globalization
Imports Microsoft.VisualBasic

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Creates CompareInfo for the InvariantCulture.
      Dim myComp As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' iS is the starting index of the substring.
      Dim [iS] As Integer = 8
      ' iL is the length of the substring.
      Dim iL As Integer = 18
      ' myT1 and myT2 are the strings used for padding.
      Dim myT1 As New [String]("-"c, [iS])
      Dim myT2 As [String]

      ' Searches for the ligature .
      Dim myStr As [String] = "Is AE or ae the same as  or ?"
      myT2 = New [String]("-"c, myStr.Length - [iS] - iL)
      Console.WriteLine()
      Console.WriteLine("Original      : {0}", myStr)
      Console.WriteLine("No options    : {0}{1}{2}", myT1, myStr.Substring([iS], iL), myT2)
      PrintMarker("           AE : ", myComp.IndexOf(myStr, "AE", [iS], iL), myComp.LastIndexOf(myStr, "AE", [iS] + iL - 1, iL))
      PrintMarker("           ae : ", myComp.IndexOf(myStr, "ae", [iS], iL), myComp.LastIndexOf(myStr, "ae", [iS] + iL - 1, iL))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL))
      Console.WriteLine("Ordinal       : {0}{1}{2}", myT1, myStr.Substring([iS], iL), myT2)
      PrintMarker("           AE : ", myComp.IndexOf(myStr, "AE", [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, "AE", [iS] + iL - 1, iL, CompareOptions.Ordinal))
      PrintMarker("           ae : ", myComp.IndexOf(myStr, "ae", [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, "ae", [iS] + iL - 1, iL, CompareOptions.Ordinal))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.Ordinal))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.Ordinal))
      Console.WriteLine("IgnoreCase    : {0}{1}{2}", myT1, myStr.Substring([iS], iL), myT2)
      PrintMarker("           AE : ", myComp.IndexOf(myStr, "AE", [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, "AE", [iS] + iL - 1, iL, CompareOptions.IgnoreCase))
      PrintMarker("           ae : ", myComp.IndexOf(myStr, "ae", [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, "ae", [iS] + iL - 1, iL, CompareOptions.IgnoreCase))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.IgnoreCase))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.IgnoreCase))

      ' Searches for the combining character sequence Latin capital letter U with diaeresis or Latin small letter u with diaeresis.
      myStr = "Is " & ChrW(&H0055) & ChrW(&H0308) & " or " & ChrW(&H0075) & ChrW(&H0308) & " the same as " & ChrW(&H00DC) & " or " & ChrW(&H00FC) & "?"
      myT2 = New [String]("-"c, myStr.Length - [iS] - iL)
      Console.WriteLine()
      Console.WriteLine("Original      : {0}", myStr)
      Console.WriteLine("No options    : {0}{1}{2}", myT1, myStr.Substring([iS], iL), myT2)
      PrintMarker("           U" & ChrW(&H0308) & " : ", myComp.IndexOf(myStr, "U" & ChrW(&H0308), [iS], iL), myComp.LastIndexOf(myStr, "U" & ChrW(&H0308), [iS] + iL - 1, iL))
      PrintMarker("           u" & ChrW(&H0308) & " : ", myComp.IndexOf(myStr, "u" & ChrW(&H0308), [iS], iL), myComp.LastIndexOf(myStr, "u" & ChrW(&H0308), [iS] + iL - 1, iL))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL))
      Console.WriteLine("Ordinal       : {0}{1}{2}", myT1, myStr.Substring([iS], iL), myT2)
      PrintMarker("           U" & ChrW(&H0308) & " : ", myComp.IndexOf(myStr, "U" & ChrW(&H0308), [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, "U" & ChrW(&H0308), [iS] + iL - 1, iL, CompareOptions.Ordinal))
      PrintMarker("           u" & ChrW(&H0308) & " : ", myComp.IndexOf(myStr, "u" & ChrW(&H0308), [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, "u" & ChrW(&H0308), [iS] + iL - 1, iL, CompareOptions.Ordinal))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.Ordinal))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.Ordinal), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.Ordinal))
      Console.WriteLine("IgnoreCase    : {0}{1}{2}", myT1, myStr.Substring([iS], iL), myT2)
      PrintMarker("           U" & ChrW(&H0308) & " : ", myComp.IndexOf(myStr, "U" & ChrW(&H0308), [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, "U" & ChrW(&H0308), [iS] + iL - 1, iL, CompareOptions.IgnoreCase))
      PrintMarker("           u" & ChrW(&H0308) & " : ", myComp.IndexOf(myStr, "u" & ChrW(&H0308), [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, "u" & ChrW(&H0308), [iS] + iL - 1, iL, CompareOptions.IgnoreCase))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.IgnoreCase))
      PrintMarker("             : ", myComp.IndexOf(myStr, ""c, [iS], iL, CompareOptions.IgnoreCase), myComp.LastIndexOf(myStr, ""c, [iS] + iL - 1, iL, CompareOptions.IgnoreCase))

   End Sub 'Main

   Public Shared Sub PrintMarker(Prefix As [String], First As Integer, Last As Integer)

      ' Determines the size of the array to create.
      Dim mySize As Integer
      If Last > First Then
         mySize = Last
      Else
         mySize = First
      End If 

      If mySize > - 1 Then

         ' Creates an array of Char to hold the markers.
         Dim myCharArr(mySize + 1) As [Char]

         ' Inserts the appropriate markers.
         If First > - 1 Then
            myCharArr(First) = "f"c
         End If
         If Last > - 1 Then
            myCharArr(Last) = "l"c
         End If
         If First = Last Then
            myCharArr(First) = "b"c
         End If 

         ' Displays the array of Char as a String.
         Console.WriteLine("{0}{1}", Prefix, New [String](myCharArr))

      Else
         Console.WriteLine(Prefix)

      End If 

   End Sub 'PrintMarker

End Class 'SamplesCompareInfo 


'This code produces the following output.
'
'Original      : Is AE or ae the same as  or ?
'No options    : -------- ae the same as  -----
'           AE :                         b
'           ae :          b
'             :                         b
'             :          b
'Ordinal       : -------- ae the same as  -----
'           AE :
'           ae :          b
'             :                         b
'             :
'IgnoreCase    : -------- ae the same as  -----
'           AE :          f              l
'           ae :          f              l
'             :          f              l
'             :          f              l
'
'Original      : Is U" or u" the same as  or ?
'No options    : -------- u" the same as  -----
'           U" :                         b
'           u" :          b
'             :                         b
'             :          b
'Ordinal       : -------- u" the same as  -----
'           U" :
'           u" :          b
'             :                         b
'             :
'IgnoreCase    : -------- u" the same as  -----
'           U" :          f              l
'           u" :          f              l
'             :          f              l
'             :          f              l


[C#] 
using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Creates CompareInfo for the InvariantCulture.
      CompareInfo myComp = CultureInfo.InvariantCulture.CompareInfo;

      // iS is the starting index of the substring.
      int iS = 8;
      // iL is the length of the substring.
      int iL = 18;
      // myT1 and myT2 are the strings used for padding.
      String myT1 = new String( '-', iS );
      String myT2;

      // Searches for the ligature .
      String myStr = "Is AE or ae the same as  or ?";
      myT2 = new String( '-', myStr.Length - iS - iL );
      Console.WriteLine();
      Console.WriteLine( "Original      : {0}", myStr );
      Console.WriteLine( "No options    : {0}{1}{2}", myT1, myStr.Substring( iS, iL ), myT2 );
      PrintMarker( "           AE : ", myComp.IndexOf( myStr, "AE", iS, iL ), myComp.LastIndexOf( myStr, "AE", iS + iL - 1, iL ) );
      PrintMarker( "           ae : ", myComp.IndexOf( myStr, "ae", iS, iL ), myComp.LastIndexOf( myStr, "ae", iS + iL - 1, iL ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL ) );
      Console.WriteLine( "Ordinal       : {0}{1}{2}", myT1, myStr.Substring( iS, iL ), myT2 );
      PrintMarker( "           AE : ", myComp.IndexOf( myStr, "AE", iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, "AE", iS + iL - 1, iL, CompareOptions.Ordinal ) );
      PrintMarker( "           ae : ", myComp.IndexOf( myStr, "ae", iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, "ae", iS + iL - 1, iL, CompareOptions.Ordinal ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.Ordinal ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.Ordinal ) );
      Console.WriteLine( "IgnoreCase    : {0}{1}{2}", myT1, myStr.Substring( iS, iL ), myT2 );
      PrintMarker( "           AE : ", myComp.IndexOf( myStr, "AE", iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, "AE", iS + iL - 1, iL, CompareOptions.IgnoreCase ) );
      PrintMarker( "           ae : ", myComp.IndexOf( myStr, "ae", iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, "ae", iS + iL - 1, iL, CompareOptions.IgnoreCase ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.IgnoreCase ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.IgnoreCase ) );

      // Searches for the combining character sequence Latin capital letter U with diaeresis or Latin small letter u with diaeresis.
      myStr = "Is \u0055\u0308 or \u0075\u0308 the same as \u00DC or \u00FC?";
      myT2 = new String( '-', myStr.Length - iS - iL );
      Console.WriteLine();
      Console.WriteLine( "Original      : {0}", myStr );
      Console.WriteLine( "No options    : {0}{1}{2}", myT1, myStr.Substring( iS, iL ), myT2 );
      PrintMarker( "           U\u0308 : ", myComp.IndexOf( myStr, "U\u0308", iS, iL ), myComp.LastIndexOf( myStr, "U\u0308", iS + iL - 1, iL ) );
      PrintMarker( "           u\u0308 : ", myComp.IndexOf( myStr, "u\u0308", iS, iL ), myComp.LastIndexOf( myStr, "u\u0308", iS + iL - 1, iL ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL ) );
      Console.WriteLine( "Ordinal       : {0}{1}{2}", myT1, myStr.Substring( iS, iL ), myT2 );
      PrintMarker( "           U\u0308 : ", myComp.IndexOf( myStr, "U\u0308", iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, "U\u0308", iS + iL - 1, iL, CompareOptions.Ordinal ) );
      PrintMarker( "           u\u0308 : ", myComp.IndexOf( myStr, "u\u0308", iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, "u\u0308", iS + iL - 1, iL, CompareOptions.Ordinal ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.Ordinal ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.Ordinal ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.Ordinal ) );
      Console.WriteLine( "IgnoreCase    : {0}{1}{2}", myT1, myStr.Substring( iS, iL ), myT2 );
      PrintMarker( "           U\u0308 : ", myComp.IndexOf( myStr, "U\u0308", iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, "U\u0308", iS + iL - 1, iL, CompareOptions.IgnoreCase ) );
      PrintMarker( "           u\u0308 : ", myComp.IndexOf( myStr, "u\u0308", iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, "u\u0308", iS + iL - 1, iL, CompareOptions.IgnoreCase ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.IgnoreCase ) );
      PrintMarker( "             : ", myComp.IndexOf( myStr, '', iS, iL, CompareOptions.IgnoreCase ), myComp.LastIndexOf( myStr, '', iS + iL - 1, iL, CompareOptions.IgnoreCase ) );

   }

   public static void PrintMarker( String Prefix, int First, int Last )  {

      // Determines the size of the array to create.
      int mySize;
      if ( Last > First )
         mySize = Last;
      else
         mySize = First;

      if ( mySize > -1 )  {

         // Creates an array of Char to hold the markers.
         Char[] myCharArr = new Char[mySize+1];

         // Inserts the appropriate markers.
         if ( First > -1 )
         myCharArr[First] = 'f';
         if ( Last > -1 )
            myCharArr[Last] = 'l';
         if ( First == Last )
         myCharArr[First] = 'b';

         // Displays the array of Char as a String.
         Console.WriteLine( "{0}{1}", Prefix, new String( myCharArr ) );

      }
      else
         Console.WriteLine( Prefix );

   }

}


/*
This code produces the following output.

Original      : Is AE or ae the same as  or ?
No options    : -------- ae the same as  -----
           AE :                         b
           ae :          b
             :                         b
             :          b
Ordinal       : -------- ae the same as  -----
           AE :
           ae :          b
             :                         b
             :
IgnoreCase    : -------- ae the same as  -----
           AE :          f              l
           ae :          f              l
             :          f              l
             :          f              l

Original      : Is U" or u" the same as  or ?
No options    : -------- u" the same as  -----
           U" :                         b
           u" :          b
             :                         b
             :          b
Ordinal       : -------- u" the same as  -----
           U" :
           u" :          b
             :                         b
             :
IgnoreCase    : -------- u" the same as  -----
           U" :          f              l
           u" :          f              l
             :          f              l
             :          f              l

*/

[C++] 
#using <mscorlib.dll>
using namespace System;
using namespace System::Globalization;

void PrintMarker( String* Prefix, int First, int Last )  {

   // Determines the size of the array to create.
   int mySize;
   if ( Last > First )
      mySize = Last;
   else
      mySize = First;

   if ( mySize > -1 )  {

      // Creates an array of Char to hold the markers.
      Char myCharArr[] = new Char[mySize+1];

      // Inserts the appropriate markers.
      if ( First > -1 )
         myCharArr[First] = 'f';
      if ( Last > -1 )
         myCharArr[Last] = 'l';
      if ( First == Last )
         myCharArr[First] = 'b';

      // Displays the array of Char as a String.
      Console::WriteLine( S"{0}{1}", Prefix, new String( myCharArr ) );

   }
   else
      Console::WriteLine( Prefix );

}

int main()  {

   // Creates CompareInfo for the InvariantCulture.
   CompareInfo* myComp = CultureInfo::InvariantCulture->CompareInfo;

   // iS is the starting index of the substring.
   int iS = 8;
   // iL is the length of the substring.
   int iL = 18;
   // myT1 and myT2 are the strings used for padding.
   String* myT1 = new String( '-', iS );
   String* myT2;

   // Searches for the ligature .
   String* myStr = S"Is AE or ae the same as  or ?";
   myT2 = new String( '-', myStr->Length - iS - iL );
   Console::WriteLine();
   Console::WriteLine( S"Original      : {0}", myStr );
   Console::WriteLine( S"No options    : {0}{1}{2}", myT1, myStr->Substring( iS, iL ), myT2 );
   PrintMarker( S"           AE : ", myComp->IndexOf( myStr, S"AE", iS, iL ), myComp->LastIndexOf( myStr, S"AE", iS + iL - 1, iL ) );
   PrintMarker( S"           ae : ", myComp->IndexOf( myStr, S"ae", iS, iL ), myComp->LastIndexOf( myStr, S"ae", iS + iL - 1, iL ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL ) );
   Console::WriteLine( S"Ordinal       : {0}{1}{2}", myT1, myStr->Substring( iS, iL ), myT2 );
   PrintMarker( S"           AE : ", myComp->IndexOf( myStr, S"AE", iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, S"AE", iS + iL - 1, iL, CompareOptions::Ordinal ) );
   PrintMarker( S"           ae : ", myComp->IndexOf( myStr, S"ae", iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, S"ae", iS + iL - 1, iL, CompareOptions::Ordinal ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::Ordinal ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::Ordinal ) );
   Console::WriteLine( S"IgnoreCase    : {0}{1}{2}", myT1, myStr->Substring( iS, iL ), myT2 );
   PrintMarker( S"           AE : ", myComp->IndexOf( myStr, S"AE", iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, S"AE", iS + iL - 1, iL, CompareOptions::IgnoreCase ) );
   PrintMarker( S"           ae : ", myComp->IndexOf( myStr, S"ae", iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, S"ae", iS + iL - 1, iL, CompareOptions::IgnoreCase ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::IgnoreCase ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::IgnoreCase ) );

   // Searches for the combining character sequence Latin capital letter U with diaeresis or Latin small letter u with diaeresis.
   myStr = S"Is U\u0308 or u\u0308 the same as \u00DC or \u00FC?";
   myT2 = new String( '-', myStr->Length - iS - iL );
   Console::WriteLine();
   Console::WriteLine( S"Original      : {0}", myStr );
   Console::WriteLine( S"No options    : {0}{1}{2}", myT1, myStr->Substring( iS, iL ), myT2 );
   PrintMarker( S"           U\u0308 : ", myComp->IndexOf( myStr, S"U\u0308", iS, iL ), myComp->LastIndexOf( myStr, S"U\u0308", iS + iL - 1, iL ) );
   PrintMarker( S"           u\u0308 : ", myComp->IndexOf( myStr, S"u\u0308", iS, iL ), myComp->LastIndexOf( myStr, S"u\u0308", iS + iL - 1, iL ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL ) );
   Console::WriteLine( S"Ordinal       : {0}{1}{2}", myT1, myStr->Substring( iS, iL ), myT2 );
   PrintMarker( S"           U\u0308 : ", myComp->IndexOf( myStr, S"U\u0308", iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, S"U\u0308", iS + iL - 1, iL, CompareOptions::Ordinal ) );
   PrintMarker( S"           u\u0308 : ", myComp->IndexOf( myStr, S"u\u0308", iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, S"u\u0308", iS + iL - 1, iL, CompareOptions::Ordinal ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::Ordinal ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::Ordinal ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::Ordinal ) );
   Console::WriteLine( S"IgnoreCase    : {0}{1}{2}", myT1, myStr->Substring( iS, iL ), myT2 );
   PrintMarker( S"           U\u0308 : ", myComp->IndexOf( myStr, S"U\u0308", iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, S"U\u0308", iS + iL - 1, iL, CompareOptions::IgnoreCase ) );
   PrintMarker( S"           u\u0308 : ", myComp->IndexOf( myStr, S"u\u0308", iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, S"u\u0308", iS + iL - 1, iL, CompareOptions::IgnoreCase ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::IgnoreCase ) );
   PrintMarker( S"             : ", myComp->IndexOf( myStr, L'', iS, iL, CompareOptions::IgnoreCase ), myComp->LastIndexOf( myStr, L'', iS + iL - 1, iL, CompareOptions::IgnoreCase ) );

}

/*
This code produces the following output.

Original      : Is AE or ae the same as  or ?
No options    : -------- ae the same as  -----
           AE :                         b
           ae :          b
             :                         b
             :          b
Ordinal       : -------- ae the same as  -----
           AE :
           ae :          b
             :                         b
             :
IgnoreCase    : -------- ae the same as  -----
           AE :          f              l
           ae :          f              l
             :          f              l
             :          f              l

Original      : Is U" or u" the same as  or ?
No options    : -------- u" the same as  -----
           U" :                         b
           u" :          b
             :                         b
             :          b
Ordinal       : -------- u" the same as  -----
           U" :
           u" :          b
             :                         b
             :
IgnoreCase    : -------- u" the same as  -----
           U" :          f              l
           u" :          f              l
             :          f              l
             :          f              l

*/

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

See Also

CompareInfo Class | CompareInfo Members | System.Globalization Namespace

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