struct Guid

in global :: System

Represents a globally unique identifier (GUID).

public Guid( byte[] b )

Initializes a new instance of the structure by using the specified array of bytes.

  • b A 16-element byte array containing values with which to initialize the GUID.

public Guid( int a, short b, short c, byte d, byte e, byte f, byte g, byte h, byte i, byte j, byte k )

Initializes a new instance of the structure by using the specified integers and bytes.

  • a The first 4 bytes of the GUID.
  • b The next 2 bytes of the GUID.
  • c The next 2 bytes of the GUID.
  • d The next byte of the GUID.
  • e The next byte of the GUID.
  • f The next byte of the GUID.
  • g The next byte of the GUID.
  • h The next byte of the GUID.
  • i The next byte of the GUID.
  • j The next byte of the GUID.
  • k The next byte of the GUID.

public Guid( int a, short b, short c, byte[] d )

Initializes a new instance of the structure by using the specified integers and byte array.

  • a The first 4 bytes of the GUID.
  • b The next 2 bytes of the GUID.
  • c The next 2 bytes of the GUID.
  • d The remaining 8 bytes of the GUID.

public Guid( string g )

Initializes a new instance of the structure by using the value represented by the specified string.

  • g A string that contains a GUID in one of the following formats ("d" represents a hexadecimal digit whose case is ignored): 32 contiguous digits: dddddddddddddddddddddddddddddddd -or- Groups of 8, 4, 4, 4, and 12 digits with hyphens between the groups. The entire GUID can optionally be enclosed in matching braces or parentheses: dddddddd-dddd-dddd-dddd-dddddddddddd -or- {dddddddd-dddd-dddd-dddd-dddddddddddd} -or- (dddddddd-dddd-dddd-dddd-dddddddddddd) -or- Groups of 8, 4, and 4 digits, and a subset of eight groups of 2 digits, with each group prefixed by "0x" or "0X", and separated by commas. The entire GUID, as well as the subset, is enclosed in matching braces: {0xdddddddd, 0xdddd, 0xdddd,{0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd}} All braces, commas, and "0x" prefixes are required. All embedded spaces are ignored. All leading zeros in a group are ignored. The digits shown in a group are the maximum number of meaningful digits that can appear in that group. You can specify from 1 to the number of digits shown for a group. The specified digits are assumed to be the low-order digits of the group.

public int CompareTo( Guid value )

Compares this instance to a specified object and returns an indication of their relative values.

  • value An object to compare to this instance.
  • Returns A signed number indicating the relative values of this instance and . Return value Description A negative integer This instance is less than . Zero This instance is equal to . A positive integer This instance is greater than .

public int CompareTo( object value )

Compares this instance to a specified object and returns an indication of their relative values.

  • value An object to compare, or .
  • Returns A signed number indicating the relative values of this instance and . Return value Description A negative integer This instance is less than . Zero This instance is equal to . A positive integer This instance is greater than , or is .

public static Guid Empty

A read-only instance of the structure whose value is all zeros.

public bool Equals( Guid g )

Returns a value indicating whether this instance and a specified object represent the same value.

  • g An object to compare to this instance.
  • Returns if is equal to this instance; otherwise, .

public bool Equals( object o )

Returns a value that indicates whether this instance is equal to a specified object.

  • o The object to compare with this instance.
  • Returns if is a that has the same value as this instance; otherwise, .

public static bool op_Equality( Guid a, Guid b )

Indicates whether the values of two specified objects are equal.

  • a The first object to compare.
  • b The second object to compare.
  • Returns if and are equal; otherwise, .

public static bool op_Inequality( Guid a, Guid b )

Indicates whether the values of two specified objects are not equal.

  • a The first object to compare.
  • b The second object to compare.
  • Returns if and are not equal; otherwise, .

public static Guid Parse( string input )

Converts the string representation of a GUID to the equivalent structure.

  • input The string to convert.
  • Returns A structure that contains the value that was parsed.

public static Guid ParseExact( string input, string format )

Converts the string representation of a GUID to the equivalent structure, provided that the string is in the specified format.

  • input The GUID to convert.
  • format One of the following specifiers that indicates the exact format to use when interpreting : "N", "D", "B", "P", or "X".
  • Returns A structure that contains the value that was parsed.

public string ToString( string format )

Returns a string representation of the value of this instance, according to the provided format specifier.

  • format A single format specifier that indicates how to format the value of this . The parameter can be "N", "D", "B", "P", or "X". If is or an empty string (""), "D" is used.
  • Returns The value of this , represented as a series of lowercase hexadecimal digits in the specified format.

public string ToString( string format, IFormatProvider provider )

Returns a string representation of the value of this instance of the class, according to the provided format specifier and culture-specific format information.

  • format A single format specifier that indicates how to format the value of this . The parameter can be "N", "D", "B", "P", or "X". If is or an empty string (""), "D" is used.
  • provider (Reserved) An object that supplies culture-specific formatting information.
  • Returns The value of this , represented as a series of lowercase hexadecimal digits in the specified format.

public static bool TryParse( string input, ref Guid result )

Converts the string representation of a GUID to the equivalent structure.

  • input The GUID to convert.
  • result The structure that will contain the parsed value. If the method returns , contains a valid . If the method returns , equals .
  • Returns if the parse operation was successful; otherwise, .

public static bool TryParseExact( string input, string format, ref Guid result )

Converts the string representation of a GUID to the equivalent structure, provided that the string is in the specified format.

  • input The GUID to convert.
  • format One of the following specifiers that indicates the exact format to use when interpreting : "N", "D", "B", "P", or "X".
  • result The structure that will contain the parsed value. If the method returns , contains a valid . If the method returns , equals .
  • Returns if the parse operation was successful; otherwise, .

public static Guid CreateVersion7( )

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public Guid( ReadOnlySpan<byte> b, bool bigEndian )

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public Type GetType( )

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public static bool op_GreaterThanOrEqual( Guid left, Guid right )

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public static Guid NewGuid( )

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public Guid( uint a, ushort b, ushort c, byte d, byte e, byte f, byte g, byte h, byte i, byte j, byte k )

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public static bool TryParse( ReadOnlySpan<char> s, IFormatProvider provider, ref Guid result )

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public static Guid Parse( ReadOnlySpan<char> s, IFormatProvider provider )

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public int Version { get; }

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public int Variant { get; }

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public static bool TryParse( string s, IFormatProvider provider, ref Guid result )

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public static Guid Parse( string s, IFormatProvider provider )

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public Guid( ReadOnlySpan<byte> b )

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public static bool op_GreaterThan( Guid left, Guid right )

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public static Guid AllBitsSet { get; }

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public static bool op_LessThan( Guid left, Guid right )

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public static Guid ParseExact( ReadOnlySpan<char> input, ReadOnlySpan<char> format )

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public bool TryFormat( Span<char> destination, ref int charsWritten, ReadOnlySpan<char> format = null )

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public string ToString( )

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public static Guid CreateVersion7( DateTimeOffset timestamp )

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public static Guid Parse( ReadOnlySpan<char> input )

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public static bool TryParse( ReadOnlySpan<char> input, ref Guid result )

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public int GetHashCode( )

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public bool TryWriteBytes( Span<byte> destination, bool bigEndian, ref int bytesWritten )

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public bool TryWriteBytes( Span<byte> destination )

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public byte[] ToByteArray( bool bigEndian )

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public byte[] ToByteArray( )

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public static bool TryParseExact( ReadOnlySpan<char> input, ReadOnlySpan<char> format, ref Guid result )

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public static bool op_LessThanOrEqual( Guid left, Guid right )

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public bool TryFormat( Span<byte> utf8Destination, ref int bytesWritten, ReadOnlySpan<char> format = null )

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