Enforce Guid parameter initialization


ID: csharp-best-practices/use-proper-new-guid

Language: C#

Severity: Notice

Category: Best Practices


This rule will warn you that you have instantiated the Guid struct without a parameter.

For an empty Guid, using Guid.Empty is cleaner.

For a randomly-generated Guid, use Guid.NewGuid() instead.

Non-Compliant Code Examples

public void Foo()
    var foo1 = new Guid();
    Guid foo2 = new Guid();
    Guid foo3 = new();
    var foo4 = default(Guid);
    Guid foo5 = default(Guid);
    Guid foo6 = default;

Compliant Code Examples

public void Foo(byte[] bytes)
    var g1 = Guid.Empty;
    var g2 = Guid.NewGuid();
    var g3 = new Guid(bytes);
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