Uri.IsHexEncoding(String, Int32) Method is used to check whether a character in a string is hexadecimal encoded or not. This checks for hexadecimal encoding which follows the pattern “%hexhex” in a string, where “hex” is a digit from 0 to 9 or a letter from A-F (case-insensitive).
Syntax: public static bool IsHexEncoding (string pattern, int index);
pattern: It is the string to check.
index: It is the location in pattern to check for hexadecimal encoding.
Return Value: This method returns a Boolean value that is true if pattern is hexadecimal encoded at the specified location otherwise, false.
Below programs illustrate the use of Uri.IsHexEncoding(String, Int32) Method:
%75 is a valid Hexadecimal Encoded
%65 is a not valid Hexadecimal Encoded %75 is a valid Hexadecimal Encoded %55 is a valid Hexadecimal Encoded