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String::IndexOf Method (String, StringComparison)
Visual Studio 2010
Reports the zero-based index of the first occurrence of the specified string in the current String object. A parameter specifies the type of search to use for the specified string.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System::String
The string to seek.
- comparisonType
- Type: System::StringComparison
One of the enumeration values that specifies the rules for the search.
Return Value
Type: System::Int32The 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 0.
| Exception | Condition |
|---|---|
| ArgumentNullException | value is nullptr. |
| ArgumentException | comparisonType is not a valid System::StringComparison value. |
The following example demonstrates three overloads of the IndexOf method that find the first occurrence of a string within another string using different values of the StringComparison enumeration.
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.
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