This method is used to indicates whether two adjacent Char objects at a specified position in a string form a surrogate pair or not.
Syntax:
public static bool IsSurrogatePair (string s, int index);
Parameters:
s: It is a String.
index: It is the starting position of the pair of characters to evaluate within s.
Return Value: This method returns
true if the
s parameter includes adjacent characters at positions
index and
index + 1, and the numeric value of the character at position index ranges from
U+D800 through
U+DBFF, and the numeric value of the character at position
index + 1 ranges from
U+DC00 through
U+DFFF otherwise it returns
false.
Exceptions:
- ArgumentNullException: If the s is null.
- ArgumentOutOfRangeException: If the index is not a position within s.
Below programs illustrate the use of
Char.IsSurrogatePair(String, Int32) Method:
Example 1:
Output:
String '1234' does't contain any Surrogate pairs at s[3] and s[4]
String 'Tsunami' does't contain any Surrogate pairs at s[3] and s[4]
String 'psyc0lo' does't contain any Surrogate pairs at s[4] and s[5]
String 'að??z' contains Surrogate pairs at s[1] and s[2]
Example 2: For
ArgumentNullException
Output:
String '1234' does't contain any Surrogate pairs at s[3] and s[4]
String 'Tsunami' does't contain any Surrogate pairs at s[3] and s[4]
String 'psyc0lo' does't contain any Surrogate pairs at s[4] and s[5]
String 'að??z' contains Surrogate pairs at s[1] and s[2]
s is null
Exception Thrown: System.ArgumentNullException
Example 3: For
ArgumentOutOfRangeException
