System Namespace   String Class

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Reports the index of the first occurrence of the specified character in the given String. The search starts at a specified character position and examines a specified number of character positions.

[ VB ]
<Serializable>
Overloads Public Function IndexOf ( _
   ByVal value As Char, _
   ByVal startIndex As Integer, _
   ByVal count As Integer _
) As Integer

[ C# ]
[ Serializable ]
public int IndexOf (
   char value,
   int startIndex,
   int count
);

[ C++ ]
[ Serializable ]
public: int IndexOf (
   __wchar_t value,
   int startIndex,
   int count
);

[ JScript ]
public Serializable
function IndexOf (
   value : Char,
   startIndex : int,
   count : int
) : int;

value

A Unicode character to seek.

startIndex

The search starting position.

count

The number of character positions to examine.

A positive 32-bit signed integer, the index, that is the character position in the given String where value was found; otherwise, -1 if value was not found.

Exception Type	Condition
ArgumentOutOfRangeException	count or startIndex is negative. -or- count + startIndex specifies a position beyond the end of this instance.

The search begins at startIndex and continues to startIndex + count-1. The character at startIndex + count is not included in the search.

Index numbering starts from zero.

The search for value is case-sensitive.

This method performs an ordinal ( culture-insensitive ) search, where a character is considered equivalent to another character only if the Unicode values are the same. To perform a culture-sensitive search, use the CompareInfo.IndexOf method, where a Unicode value representing a precomposed character, such as the ligature 'Æ' ( U+00C6 ), might be considered equivalent to any occurrence of the character's components in the correct sequence, such as "AE" ( U+0041, U+0045 ), depending on the culture.

String Members   String.IndexOf Overload List   Char   Int32   IndexOfAny   LastIndexOf   LastIndexOfAny

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