C＃中索引器的快捷方式

Question

I'm using an indexer in a class in C#, but I'm wondering if there is by default a shortcut for making indexers (like for example ' cw tab tab' for Console.WriteLine() ). Does anyone knows if this exists?

Here's my code (with indexer) for the class 'Person':

public string SurName { get; set; }
public string FirstName { get; set; }
public string Birthplace { get; set; }

public string this[int index]
{
    set
    {
        switch (index)
        {
            case 0:
                this.SurName = value;
                break;
            case 1:
                this.FirstName = value;
                break;
            case 2:
                this.Birthplace = value;
                break;
            default:
                throw new ArgumentOutOfRangeException("index");
        }
    }
    get
    {
        switch (index)
        {
            case 0: return this.SurName;
            case 1: return this.FirstName;
            case 2: return this.Birthplace;
            default:
                throw new ArgumentOutOfRangeException("index");
        }
    }
}

Thanks in advance!

-Jérémy

Answer 1

From Visual C# Code Snippets

indexer

Creates an indexer declaration.

Inside a class or a struct.

So, type ind and hit Tab twice. This generates;

public object this[int index]
{
     get { /* return the specified index here */ }
     set { /* set the specified index to value here */ }
}

However, is there also a snippet that fills in the get and set automatically?

Hmm , I did not tried this before but I opened propfull.snippet and it seems like;

        ....
        <Literal>
            <ID>field</ID>
            <ToolTip>The variable backing this property</ToolTip>
            <Default>myVar</Default>
        </Literal>
    </Declarations>
    <Code Language="csharp"><![CDATA[private $type$ $field$;

public $type$ $property$
{
    get { return $field$;}
    set { $field$ = value;}
}
....

And indexer.snippet looks like;

....
....
<Code Language="csharp"><![CDATA[$access$ $type$ this[$indextype$ index]
{
    get {$end$ /* return the specified index here */ }
    set { /* set the specified index to value here */ }
}]]>
....

So, if you define <Literal><ID>field</ID>...</Literal> part in your indexer.snippet and if you change it's getter and setter like;

public object this[int index]
{
   get { return $field$; }
   set { $field$ = value; }
}

this might work if everything is good. By the way, it this works, it will create a private field additional to indexer. Those snippets are in C:\\Program Files (x86)\\Microsoft Visual Studio 11.0\\VC#\\Snippets\\1033\\Visual C# folder for Visual Studio 2012.

Answer 2

您可以创建代码段，并查看以下页面： https : //msdn.microsoft.com/zh-cn/library/ms165394.aspx或此页面以查看现有代码段https://msdn.microsoft.com/en -us / library / z41h7fat.aspx