C# Method Property Param

Question

I want to add a property as a parameter.

 /// <summary> /// Permet de passer à la prochaine valeur de la <see cref="Dimension" />. /// </summary> public void DimensionSuivante() { if (Dimension == enuDimension.Petite) Dimension = enuDimension.Maximale; else Dimension += 1; } /// <summary> /// Permet de passer à la prochaine valeur de la <see cref="Qualite" />. /// </summary> public void QualiteSuivante() { if (Qualite == enuQualite.Faible) Qualite = enuQualite.Excellente; else Qualite += 1; } /// <summary> /// Permet de passer à la prochaine valeur de la <see cref="Sensibilite" />. /// </summary> public void SensibiliteSuivante() { if (Sensibilite == enuSensibilite.ISO_800) Sensibilite = enuSensibilite.ISO_64; else Sensibilite += 1; }

These methods gets alot repetitive, so i wanted to create a new method that we pass a Property as a parameter. I have no idea what the syntax would be. I've tried adding the object before the param. Here's the method i have so far.

 private void GetPropertyNext(PropertyName) { if (PropertyName == FirstOfEnu) PropertyName = LastOfEnu; else PropertyName += 1; }

In last code you need to define variable name after PropertyName. — Anirudha Gupta
– Anirudha Gupta, Commented Mar 17, 2017 at 1:12

Community · Accepted Answer · 2017-05-23 12:17:30Z

You cannot pass properties by reference. See How to pass properties by reference in c#? and C# Pass a property by reference.

But usually, you don't need to. And that's the case here. I think your method should look more like this:

static T IncrementEnum<T>(T value) { int[] values = Enum.GetValues(typeof(T)).Cast<int>().ToArray(); int i = (int)(object)value, min = values.Min(), max = values.Max(); return (T)(object)(i == max ? min : i + 1); }

Then you can call it like:

Dimension = IncrementEnum(Dimension);

The above method is somewhat costly, because each time you call it, it has to determine the min and max values. You can encapsulate it in a generic type, and initialize those values in the static constructor, if this is something where that performance overhead would be an issue.

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