Guid.Equality Operator
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Indicates whether the values of two specified Guid objects are equal.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- a
- Type: System.Guid
The first object to compare.
- b
- Type: System.Guid
The second object to compare.
The following example uses the Equality operator to compare two GUID values with Guid.Empty to determine whether they consist exclusively of zeros.
using System; public class Example { public static void Demo(System.Windows.Controls.TextBlock outputBlock) { // Create a GUID and determine whether it consists of all zeros. Guid guid1 = Guid.NewGuid(); outputBlock.Text += guid1.ToString() + "\n"; outputBlock.Text += String.Format("Empty: {0}\n\n", guid1 == Guid.Empty); // Create a GUID with all zeros and compare it to Empty. Byte[] bytes = new Byte[16]; Guid guid2 = new Guid(bytes); outputBlock.Text += guid2.ToString() + "\n"; outputBlock.Text += String.Format("Empty: {0}\n", guid2 == Guid.Empty); } } // The example displays output like the following: // 11c43ee8-b9d3-4e51-b73f-bd9dda66e29c // Empty: False // // 00000000-0000-0000-0000-000000000000 // Empty: True
Show: