IsMatch Method (String, Int32)
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Indicates whether the regular expression specified in the Regex constructor finds a match in the specified input string, beginning at the specified starting position in the string.
Assembly: System.Text.RegularExpressions (in System.Text.RegularExpressions.dll)
- Type: System..::..String
The string to search for a match.
- Type: System..::..Int32
The character position at which to start the search.
Return ValueType: System..::..Boolean
true if the regular expression finds a match; otherwise, false.
The IsMatch method is typically used to validate a string or to ensure that a string conforms to a particular pattern without retrieving that string for subsequent manipulation. If you want to determine whether one or more strings match a regular expression pattern and then retrieve them for subsequent manipulation, call the Match or Matches method.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.