How Can I Initialize C# Auto-Properties?

The initial value of the automatic attribute of the automatic attribute set

The automatic attribute of C# provides a simple way to define attributes, without separate fields and explicit attribute accessors. However, the initial value of the initial value is required to use the constructor or the traditional attribute syntax.

Starting from C# 6.0, there is a more direct method to set the initial value of the automatic attribute:

Initialization of Neilian

Here, the attribute X is initialized to 0 during the compilation period, and there is no need to perform additional initialization or use the traditional attribute grammar in the constructor.

public int X { get; set; } = 0;

<先> Compared with the previous method

<于> The initialization of the constructive function:

This method needs to be explicitly initialized in the constructor, which may lead to a lengthy and repeated initialization code. <统> Traditional attribute grammar:

public Person()
{
    Name = "Initial Name";
}
public string Name { get; set; }

Although this method provides an initial value, it needs to create a supporting field, which may introduce unnecessary model code and maintenance overhead.

DefaultValueattribute

private string name = "Initial Name";
public string Name 
{
    get 
    {
        return name;
    }
    set
    {
        name = value;
    }
}

DefaultValueAttribute is not suitable for initialization automatic properties. Its use is different, mainly used to inform designers or other users' default values ​​for serialization or binding purposes.

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