C# 如何创建 Guid 值？
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C# how to create a Guid value?
提问by 5YrsLaterDBA
One field of our struct is Guid type. How to generate a valid value for it?
我们结构的一个字段是 Guid 类型。如何为其生成有效值？
采纳答案by David
Guid id = Guid.NewGuid();
回答by Adam Driscoll
Guid.NewGuid()creates a new random guid.
Guid.NewGuid()创建一个新的随机 guid。
回答by Dana Holt
Guid.NewGuid()will create one
Guid.NewGuid()将创建一个
回答by Justin
There are two ways
有两种方式
var guid = Guid.NewGuid();
or
或者
var guid = Guid.NewGuid().ToString();
both use the Guid class, the first creates a Guid Object, the second a Guid string.
两者都使用 Guid 类，第一个创建一个 Guid 对象，第二个创建一个 Guid 字符串。
回答by Justin
var guid = new Guid();
Hey, its a 'valid', although not very useful, Guid.
嘿，它是一个“有效”的，虽然不是很有用，Guid。
(the guid is all zeros, if you don't know. Sometimes this is needed to indicate no guid, in cases where you don't want to use a nullable Guid)
（如果您不知道，guid 全为零。有时这需要指示没有 guid，在您不想使用可为空的 Guid 的情况下）
回答by siphab
System.Guid desiredGuid = System.Guid.NewGuid();
回答by reza.cse08
To makes an "empty" all-0 guid like 00000000-0000-0000-0000-000000000000.
制作一个“空的”全 0 guid 像00000000-0000-0000-0000-000000000000.
var makeAllZeroGuID = new System.Guid();
or
或者
var makeAllZeroGuID = System.Guid.Empty;
To makes an actual guid with a unique value, what you probably want.
制作具有独特价值的实际 guid，您可能想要什么。
var uniqueGuID = System.Guid.NewGuid();
回答by sammer
//Retrive your key ID on the bases of GUID
declare @ID as uniqueidentifier
SET @ID=NEWID()
insert into Sector(Sector,CID)
Values ('Diry7',@ID)
select SECTORID from sector where CID=@ID
回答by Zeliax
If you want to create a "desired" Guid you can do
如果你想创建一个“想要的”Guid，你可以这样做
var tempGuid = Guid.Parse("<guidValue>");
where <guidValue>would be something like 1A3B944E-3632-467B-A53A-206305310BAE.
哪里<guidValue>会像1A3B944E-3632-467B-A53A-206305310BAE.
回答by SAliaMunch
If you are using this in the Reflection C#, you can get the guid from the property attribute as follows
如果你在反射 C# 中使用它，你可以从 property 属性中获取 guid，如下所示
var propertyAttributes= property.GetCustomAttributes();
foreach(var attribute in propertyAttributes)
{
var myguid= Guid.Parse(attribute.Id.ToString());
}
