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Char.IsSurrogatePair Method (Char, Char)

Indicates whether the two specified Char objects form a surrogate pair.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

static member IsSurrogatePair : 
        highSurrogate:char * 
        lowSurrogate:char -> bool

Parameters

highSurrogate
Type: System.Char

The character to evaluate as the high surrogate of a surrogate pair.

lowSurrogate
Type: System.Char

The character to evaluate as the low surrogate of a surrogate pair.

Return Value

Type: System.Boolean
true if the numeric value of the highSurrogate parameter ranges from U+D800 through U+DBFF, and the numeric value of the lowSurrogate parameter ranges from U+DC00 through U+DFFF; otherwise, false.

Ordinarily, a single character is represented by a single 16-bit Unicode code unit. UTF-16 encoding also supports surrogate pairs, which allow a single abstract character to be represented by two 16-bit code units. The first code unit, whose value can range from U+D800 to U+DBFF, is the high surrogate. The second code unit, whose value can range from U+DC00 to U+DFFF, is the low surrogate. Individual surrogate code points have no interpretation of their own. For more information about surrogates and the Unicode Standard, see the Unicode home page.

The following code example demonstrates the IsHighSurrogate, IsLowSurrogate, and IsSurrogatePair methods.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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