LastIndexOf Method (String)

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Reports the zero-based index position of the last occurrence of a specified string within this instance.

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

Syntax

'Declaration
Public Function LastIndexOf ( _
    value As String _
) As Integer

public int LastIndexOf(
    string value
)

public:
int LastIndexOf(
    String^ value
)

member LastIndexOf : 
        value:string -> int 

public function LastIndexOf(
    value : String
) : int

Parameters

• value
  Type: System. . :: . .String
  The string to seek.

Return Value

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

Remarks

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 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.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.

See Also

Reference

String Class

LastIndexOf Overload

System Namespace