Thickness.Equals Method (Thickness)
.NET Framework 4.6 and 4.5
Testing for equality or inequality on two floating-point values that are logically equivalent might fail because of precision errors that can accumulate as the values are operated on.
Supported in: 4.6, 4.5, 4, 3.5, 3.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1