Is setting variables null in a model a good way to make the variable null (until it's changed)?

Question

Ints/doubles in my app convert themselves to "0" if no value is entered by the user in the view. To stop this from happening I use "= null" in my model.

Eg.

public double? Distance { get; set; } = null;

Is this considered an OK thing to do or is there a better way? Thanks!

Question is different from the one suggested as I'm specifically dealing with null values in the model.

It's *already* null. You don't need to reinitialize it to null — Panagiotis Kanavos, Apr 27 '17 at 09:03
Possible duplicate of [How do you give a C# Auto-Property a default value?](http://stackoverflow.com/questions/40730/how-do-you-give-a-c-sharp-auto-property-a-default-value) — Tetsuya Yamamoto, Apr 27 '17 at 09:05

score 2 · Accepted Answer · answered Apr 27 '17 at 09:03

2

This will do already:

public double? Distance { get; set; }

answered Apr 27 '17 at 09:03

Willy David Jr

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score 1 · Answer 2 · answered Apr 27 '17 at 09:40

1

Creating a nullable model is enough.

public double? Distance { get; set; }

answered Apr 27 '17 at 09:40

Jayakrishnan

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score 1 · Answer 3 · answered Apr 27 '17 at 09:53

1

You can use nullable. By using '?' after the datatype you can make it nullable.

public double? Distance { get; set; }

answered Apr 27 '17 at 09:53

Kate Fernando

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score 0 · Answer 4 · answered Apr 27 '17 at 09:07

the best way is to set the value to null where you are creating the object of model instead of assigning null initially .`

YourClass objectName = new Yourclass();

objectName.Distance = null;

may be i am wrong but when you initialize an object if it has nullable prop it is taken as null initially unless you dont assign a value

Is setting variables null in a model a good way to make the variable null (until it's changed)?

4 Answers4