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String::LastIndexOf Method (String, StringComparison)

Reports the index of the last occurrence of a specified string within the current String object. A parameter specifies the type of search to use for the specified string.

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

public:
int LastIndexOf(
	String^ value, 
	StringComparison comparisonType
)

Parameters

value
Type: System::String

The String object to seek.

comparisonType
Type: System::StringComparison

One of the System::StringComparison values.

Return Value

Type: System::Int32
The index position of the value parameter if that string is found, or -1 if it is not. If value is Empty, the return value is the last index position in this instance.

ExceptionCondition
ArgumentNullException

value is nullptr.

ArgumentException

comparisonType is not a valid System::StringComparison value.

Index numbering starts from zero. That is, the first character in the string is at index zero and the last is at Length - 1.

The comparisonType parameter specifies to search for the value parameter using the current or invariant culture, using a case-sensitive or case-insensitive search, and using word or ordinal comparison rules.

The search begins at the last character position of this instance and proceeds backward toward the beginning until either value is found or the first character position has been examined.

The following example demonstrates three overloads of the LastIndexOf method that find the last occurrence of a string within another string using different values of the StringComparison enumeration.

No code example is currently available or this language may not be supported.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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