Method ExtString.Find(+ 2 overloads)

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Overload

Finds substring in this string. Returns its 0-based index, or -1 if not found.

public static int Find(this string t, string s, bool ignoreCase = false)

Parameters

t  (string) This string.

s  (string) Substring to find.

ignoreCase  (bool) Case-insensitive.

Returns

int

Exceptions

ArgumentNullException s is null.

Remarks

Uses ordinal comparison (does not depend on current culture/locale).

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Overload(next)

Finds substring in part of this string. Returns its 0-based index, or -1 if not found.

public static int Find(this string t, string s, int startIndex, bool ignoreCase = false)

Parameters

t  (string) This string.

s  (string) Substring to find.

startIndex  (int) The search start index.

ignoreCase  (bool) Case-insensitive.

Returns

int

Exceptions

ArgumentNullException s is null.

ArgumentOutOfRangeException Invalid startIndex.

Remarks

Uses ordinal comparison (does not depend on current culture/locale).

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Overload(top)

Finds substring in part of this string. Returns its 0-based index, or -1 if not found.

public static int Find(this string t, string s, Range range, bool ignoreCase = false)

Parameters

t  (string) This string.

s  (string) Substring to find.

range  (Range) The search range.

ignoreCase  (bool) Case-insensitive.

Returns

int

Exceptions

ArgumentNullException s is null.

ArgumentOutOfRangeException Invalid range.

Remarks

Uses ordinal comparison (does not depend on current culture/locale).