Named Parameters# DotNet - 窗口里的风景
W*n
1 楼
DataAnnotation - ValidationAttribute有一个可以使用named parameter的ctor，附
件图片那个样子的，这个不是C# 4中的那种named parameter？用ilspy看了一下也没看
出什么名堂。谁能讲解一下？
件图片那个样子的，这个不是C# 4中的那种named parameter？用ilspy看了一下也没看
出什么名堂。谁能讲解一下？
v*n
2 楼
attribute的named argument和普通method不一样
http://msdn.microsoft.com/en-us/library/aa664614(v=vs.71).aspx
Attribute classes can have positional parameters and named parameters. Each
public instance constructor for an attribute class defines a valid sequence
of
positional parameters for that attribute class. Each non-static public
read-write field and property for an attribute class defines a named
parameter
for the attribute class.
【在 W********n 的大作中提到】
: DataAnnotation - ValidationAttribute有一个可以使用named parameter的ctor，附
: 件图片那个样子的，这个不是C# 4中的那种named parameter？用ilspy看了一下也没看
: 出什么名堂。谁能讲解一下？
http://msdn.microsoft.com/en-us/library/aa664614(v=vs.71).aspx
Attribute classes can have positional parameters and named parameters. Each
public instance constructor for an attribute class defines a valid sequence
of
positional parameters for that attribute class. Each non-static public
read-write field and property for an attribute class defines a named
parameter
for the attribute class.
【在 W********n 的大作中提到】
: DataAnnotation - ValidationAttribute有一个可以使用named parameter的ctor，附
: 件图片那个样子的，这个不是C# 4中的那种named parameter？用ilspy看了一下也没看
: 出什么名堂。谁能讲解一下？
W*n
3 楼
原来如此，而且第一版.net就有，学习了
Each
sequence
【在 v******n 的大作中提到】
: attribute的named argument和普通method不一样
: http://msdn.microsoft.com/en-us/library/aa664614(v=vs.71).aspx
: Attribute classes can have positional parameters and named parameters. Each
: public instance constructor for an attribute class defines a valid sequence
: of
: positional parameters for that attribute class. Each non-static public
: read-write field and property for an attribute class defines a named
: parameter
: for the attribute class.
Each
sequence
【在 v******n 的大作中提到】
: attribute的named argument和普通method不一样
: http://msdn.microsoft.com/en-us/library/aa664614(v=vs.71).aspx
: Attribute classes can have positional parameters and named parameters. Each
: public instance constructor for an attribute class defines a valid sequence
: of
: positional parameters for that attribute class. Each non-static public
: read-write field and property for an attribute class defines a named
: parameter
: for the attribute class.
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