Guid.Parse 方法

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

public:
 static Guid Parse(System::String ^ s, IFormatProvider ^ provider) = IParsable<Guid>::Parse;

public static Guid Parse(string s, IFormatProvider? provider);

static member Parse : string * IFormatProvider -> Guid

Public Shared Function Parse (s As String, provider As IFormatProvider) As Guid

参数

返回

分析 s的结果。

实现

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

public:
 static Guid Parse(ReadOnlySpan<char> s, IFormatProvider ^ provider) = ISpanParsable<Guid>::Parse;

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

static member Parse : ReadOnlySpan<char> * IFormatProvider -> Guid

Public Shared Function Parse (s As ReadOnlySpan(Of Char), provider As IFormatProvider) As Guid

参数

返回

分析 s的结果。

实现

Source:

Guid.cs

Source:

Guid.cs

public:
 static Guid Parse(ReadOnlySpan<System::Byte> utf8Text, IFormatProvider ^ provider) = IUtf8SpanParsable<Guid>::Parse;

public static Guid Parse(ReadOnlySpan<byte> utf8Text, IFormatProvider? provider);

static member Parse : ReadOnlySpan<byte> * IFormatProvider -> Guid

Public Shared Function Parse (utf8Text As ReadOnlySpan(Of Byte), provider As IFormatProvider) As Guid

参数

返回

分析 utf8Text的结果。

实现

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

public:
 static Guid Parse(ReadOnlySpan<char> input);

public static Guid Parse(ReadOnlySpan<char> input);

static member Parse : ReadOnlySpan<char> -> Guid

Public Shared Function Parse (input As ReadOnlySpan(Of Char)) As Guid

参数

返回

包含已分析的值的结构。

例外

注解

该方法 Parse 剪裁任何前导或尾随空格字符 input ，并将其余字符 input 转换为值 Guid 。 此方法可以转换表示方法生成的 ToString 五种格式中的任何一种的字符范围，如下表所示。

如果方法无法成功分析字符串，则该方法将引发 FormatException 该字符串。 原因包括：

• input 包含不属于十六进制字符集的字符。

• input 字符太多或太少。

• input 不采用方法识别 ToString 并列在上表中的格式之一。

TryParse使用该方法捕获任何不成功的分析操作，而无需处理异常。

Source:

Guid.cs

Source:

Guid.cs

public:
 static Guid Parse(ReadOnlySpan<System::Byte> utf8Text);

public static Guid Parse(ReadOnlySpan<byte> utf8Text);

static member Parse : ReadOnlySpan<byte> -> Guid

Public Shared Function Parse (utf8Text As ReadOnlySpan(Of Byte)) As Guid

参数

返回

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

Source:

Guid.cs

public:
 static Guid Parse(System::String ^ input);

public static Guid Parse(string input);

static member Parse : string -> Guid

Public Shared Function Parse (input As String) As Guid

参数

返回

包含已分析的值的结构。

例外

示例

以下示例创建一个新的 GUID，使用“B”、“D”和“X”格式说明符调用 ToString(String) 该方法，然后将其转换为三个单独的字符串表示形式，然后调用 Parse 该方法将字符串转换回 Guid 值。

var originalGuid = Guid.NewGuid();
// Create an array of string representations of the GUID.
string[] stringGuids = { originalGuid.ToString("B"),
                         originalGuid.ToString("D"),
                         originalGuid.ToString("X") };

// Parse each string representation.
foreach (var stringGuid in stringGuids)
{
    try
    {
        Guid newGuid = Guid.Parse(stringGuid);
        Console.WriteLine($"Converted {stringGuid} to a Guid");
    }
    catch (ArgumentNullException)
    {
        Console.WriteLine("The string to be parsed is null.");
    }
    catch (FormatException)
    {
        Console.WriteLine($"Bad format: {stringGuid}");
    }
}

// The example displays output similar to the following:
//
//    Converted {81a130d2-502f-4cf1-a376-63edeb000e9f} to a Guid
//    Converted 81a130d2-502f-4cf1-a376-63edeb000e9f to a Guid
//    Converted {0x81a130d2,0x502f,0x4cf1,{0xa3,0x76,0x63,0xed,0xeb,0x00,0x0e,0x9f}} to a Guid

open System

let originalGuid = Guid.NewGuid()
// Create an array of string representations of the GUID.
let stringGuids =
    [| originalGuid.ToString "B"
       originalGuid.ToString "D"
       originalGuid.ToString "X" |]

// Parse each string representation.
for stringGuid in stringGuids do
    try
        let newGuid = Guid.Parse stringGuid
        printfn $"Converted {stringGuid} to a Guid"
    with
    | :? ArgumentNullException ->
        printfn "The string to be parsed is null."
    | :? FormatException ->
        printfn $"Bad format: {stringGuid}"

// The example displays output similar to the following:
//
//    Converted {81a130d2-502f-4cf1-a376-63edeb000e9f} to a Guid
//    Converted 81a130d2-502f-4cf1-a376-63edeb000e9f to a Guid
//    Converted {0x81a130d2,0x502f,0x4cf1,{0xa3,0x76,0x63,0xed,0xeb,0x00,0x0e,0x9f}} to a Guid

Module Example
   Public Sub Main()
      Dim originalGuid As Guid = Guid.NewGuid()
      ' Create an array of string representations of the GUID.
      Dim stringGuids() As String = { originalGuid.ToString("B"),
                                      originalGuid.ToString("D"),
                                      originalGuid.ToString("X") }
      
      ' Parse each string representation.
      For Each stringGuid In stringGuids
         Try 
            Dim newGuid As Guid = Guid.Parse(stringGuid) 
            Console.WriteLine("Converted {0} to a Guid", stringGuid)
         Catch e As ArgumentNullException
            Console.WriteLine("The string to be parsed is null.")   
         Catch e As FormatException
            Console.WriteLine("Bad format: {0}", stringGuid)
         End Try     
      Next                                      
   End Sub
End Module
' The example displays the following output:
'    Converted {81a130d2-502f-4cf1-a376-63edeb000e9f} to a Guid
'    Converted 81a130d2-502f-4cf1-a376-63edeb000e9f to a Guid
'    Converted {0x81a130d2,0x502f,0x4cf1,{0xa3,0x76,0x63,0xed,0xeb,0x00,0x0e,0x9f}} to a Guid

注解

该方法 Parse 剪裁任何前导空格或尾随空格 input ，并将 GUID 的字符串表示形式转换为 Guid 值。 此方法可以转换由和ToString(String)方法生成的ToString(String, IFormatProvider)五种格式中的任何一种的字符串，如下表所示。

如果方法无法成功分析字符串，则该方法将引发 FormatException 该字符串。 原因包括：

• input 包含不属于十六进制字符集的字符。

• input 字符太多或太少。

• input 不采用方法识别 ToString 并列在上表中的格式之一。

TryParse使用该方法捕获任何不成功的分析操作，而无需处理异常。

另请参阅

• TryParse(String, Guid)
• ToString()