C＃类型别名/自定义类型 [英] c# Type Alias/Custom Type

问题描述

我试着去一些Delphi代码转换为C＃和我遇到的一个问题...

在德尔福我decalared新型

 键入扩展
  

$的TDATA =阵列b $ b

在那里我可以访问返回此类型与语句如

 功能TM​​yObject.ReadData函数的结果：TDATA ; 
开始
：
端; 
 
数据：= MyObject.ReadData; 
结果=数据[7] +数据[12]如果我intially宣布
  

现在单本作阵列然后我可以改变这一行来改变精度。 （我可能会在短期内做它降低到双击让任何结果完全匹配C＃版本。

所以，问题是我能做到在C＃中类似的东西像

 类数据：双[] 
  

虽然不完全是这样，因为它不会编译，否则我会做

 类DataEntry：双人间
 ... 
公共DataEntry []读取
 {
 ... 
 } 
  

解决方案

您可以在类包装双数组并为它提供索引属性。

Im trying to convert some Delphi code to c# and I've come across a problem...

In Delphi I've decalared a new type

Type TData = Array of Extended

where I can access the result of functions returning this type with statements like

Function TMyObject.ReadData:TData;
begin
...
end;

Data := MyObject.ReadData;
Result = Data[7] + Data[12]

now if I had intially declared this as Array of Single then I could change this one line to change the precision. (which I may have to do shortly to lower it to Double so that any results exactly match the c# version.

so the question is can I do something similar in c#? something like

class Data : Double[]

although not exactly like this since it doesn't compile, or would I do

class DataEntry : Double
...
public DataEntry[] Read
{
...
}

解决方案

You can wrap an array of Double in a class and provide index properties for it.

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