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StringExtensionsIndexOfPrevious(String, String, Int32, Boolean) Method
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Searches a string from right to left for the next instance of a specified string.
Namespace: GSFAssembly: GSF.Core (in GSF.Core.dll) Version: 2.4.218-beta+101eee949414e414795e55a6e73d88938f0177b8
Syntax public static int IndexOfPrevious(
this string value,
string testString,
int startIndex = 0,
bool matchCase = true
)
[<ExtensionAttribute>]
static member IndexOfPrevious :
value : string *
testString : string *
?startIndex : int *
?matchCase : bool
(* Defaults:
let _startIndex = defaultArg startIndex 0
let _matchCase = defaultArg matchCase true
*)
-> int
GSF.StringExtensions.IndexOfPrevious = function(value, testString, startIndex, matchCase);
View SourceParameters
- value String
- Input string to process.
- testString String
- The string to find.
- startIndex Int32 (Optional)
- The index in value from which to begin looking for testString. Typically length of value minus 1."
- matchCase Boolean (Optional)
- Set to false for case insensitive search
Return Value
Int32The start (or left most) index of
testString within
value or (-1) if not found.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
String. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
See Also