57 lines
2.3 KiB
C#
57 lines
2.3 KiB
C#
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
|
|||
|
|
namespace DTS.DASLib.Service
|
|||
|
|
{
|
|||
|
|
// Custom comparer for the IDASCommunication class.
|
|||
|
|
public class AnalogInputDASChannelComparer : IEqualityComparer<AnalogInputDASChannel>
|
|||
|
|
{
|
|||
|
|
// GainInfo are equal if their Gain is equal.
|
|||
|
|
public bool Equals(AnalogInputDASChannel x, AnalogInputDASChannel y)
|
|||
|
|
{
|
|||
|
|
// Check whether the compared objects reference the same data.
|
|||
|
|
if (ReferenceEquals(x, y))
|
|||
|
|
return true;
|
|||
|
|
|
|||
|
|
// Check whether any of the compared objects is null.
|
|||
|
|
if (x is null || y is null)
|
|||
|
|
return false;
|
|||
|
|
|
|||
|
|
if (x.OwningModule == null || y.OwningModule == null)
|
|||
|
|
return false;
|
|||
|
|
|
|||
|
|
if (x.OwningModule.OwningDAS == null || y.OwningModule.OwningDAS == null)
|
|||
|
|
return false;
|
|||
|
|
|
|||
|
|
if (string.IsNullOrEmpty(x.OwningModule.OwningDAS.SerialNumber) ||
|
|||
|
|
string.IsNullOrEmpty(y.OwningModule.OwningDAS.SerialNumber))
|
|||
|
|
return false;
|
|||
|
|
|
|||
|
|
// Check whether they are equal.
|
|||
|
|
return x.ModuleChannelNumber == y.ModuleChannelNumber &&
|
|||
|
|
x.OwningModule.ModuleArrayIndex == y.OwningModule.ModuleArrayIndex &&
|
|||
|
|
x.OwningModule.OwningDAS.SerialNumber == y.OwningModule.OwningDAS.SerialNumber &&
|
|||
|
|
x.AbsoluteDisplayOrder == y.AbsoluteDisplayOrder &&
|
|||
|
|
x.UnitConverision == y.UnitConverision;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// If Equals() returns true for a pair of objects,
|
|||
|
|
// GetHashCode must return the same value for these objects.
|
|||
|
|
|
|||
|
|
public int GetHashCode(AnalogInputDASChannel analog)
|
|||
|
|
{
|
|||
|
|
// Check whether the object is null.
|
|||
|
|
|
|||
|
|
if (string.IsNullOrEmpty(analog.OwningModule?.OwningDAS?.SerialNumber))
|
|||
|
|
return 0;
|
|||
|
|
|
|||
|
|
// Get the hash code for the fields
|
|||
|
|
return analog.ModuleChannelNumber.GetHashCode() ^
|
|||
|
|
analog.OwningModule.ModuleArrayIndex.GetHashCode() ^
|
|||
|
|
analog.OwningModule.OwningDAS.SerialNumber.GetHashCode() ^
|
|||
|
|
analog.AbsoluteDisplayOrder.GetHashCode() ^
|
|||
|
|
analog.UnitConverision.GetHashCode();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|