没有私有成员的C＃类成员验证

Question

Is there a way to conduct error range checking in C# for class members, without Private members?

1)

For example here, I Need Private member for (less than/greater than checking).

public class PageModel
{
    private int page;
    public int Page
    {
        get => page;
        set
        {
            if (value < 0) { page = 0; }
            else page = value;
        }
    }

2)

If only have Public member, the get=> Page line gives SonarQube error

Add a way to break out of this property accessor's recursion

public class PageModel
{
    public int Page
    {
        get => Page;
        set
        {
            if (value < 0) { Page = 0; }
            else Page = value;
        }
    }

Just curious if there is way to conduct data validation without private member. Are data annotations good method also? are they as safe as private members?

Answer 1

Question answered before OP's edit

Property is not a field, it is just shorthand for:

private int <>_page;
public get_Page()
{
    return <>_page;
}

public set_Page(int value)
{
     <>_page = value;
}

So setting Page like that doesn't make any sense.

public int Page
{
    get => Page;
}

Answering your question, no, there is no way to get rid of additional field, because there is nothing to write to if you get rid of the field.

You would have to create a method such as

public int Page { get; set; }    
public void Validate()
{
    if(Page < 0)
       Page = 0;
}

But there are endless possibilities of doing it.