[英]How to pass and use a generic object in c#?
I have multiple methods that each return an Object. 我有多个方法,每个方法都返回一个对象。
public objA myCall(string[] args)
{
webAPI myAPI = new webAPI();
returnData = myAPI.callApi("http://localhsot/api", args , "POST");
XmlSerializer serializer = new XmlSerializer(typeof(myObj));
using (TextReader reader = new StringReader(returnData))
{
objA result = (objA)serializer.Deserialize(reader);
return result;
}
}
And 和
public objB myCall(string[] args)
{
webAPI myAPI = new webAPI();
returnData = myAPI.callApi("http://localhsot/api", args , "POST");
XmlSerializer serializer = new XmlSerializer(typeof(myObj));
using (TextReader reader = new StringReader(returnData))
{
objB result = (objB)serializer.Deserialize(reader);
return result;
}
}
What I would like to do is consolidate these into one method using generics. 我想做的就是使用泛型将它们合并为一种方法。 This way I can pass in the object that I would like returned.
这样,我可以传递我想要返回的对象。 I've never used generics before and need a little help.
我以前从未使用过泛型,因此需要一些帮助。 This is what I have tried:
这是我尝试过的:
public T myCall<T>(ref T myObj, string[] args)
{
webAPI myAPI = new webAPI();
returnData = myAPI.callApi("http://localhsot/api", args , "POST");
XmlSerializer serializer = new XmlSerializer(typeof(myObj));
using (TextReader reader = new StringReader(returnData))
{
myObj result = (myObj)serializer.Deserialize(reader);
return result;
}
}
But when I put this into Visual Studio, I get get an error saying that "myObj" is a variable but is used like a type. 但是,当我将其放入Visual Studio时,我得到一个错误,说“ myObj”是一个变量,但像类型一样使用。 If you have had experience with this and are willing to help, I would appreciate it.
如果您有此经验并愿意提供帮助,我将不胜感激。
You are almost there 你快到了
public T myCall<T>(string[] args)
{
webAPI myAPI = new webAPI();
returnData = myAPI.callApi("http://localhsot/api", args , "POST");
XmlSerializer serializer = new XmlSerializer(typeof(T));
using (TextReader reader = new StringReader(returnData))
{
T result = (T)serializer.Deserialize(reader);
return result;
}
}
And then you call it by passing the type as the generic constraint. 然后通过将类型作为通用约束传递来调用它。
var result = myCall<objA>(someArguments);
On a side note (and also my opinion) objA
is not a good name for a type. objA
(也是我的观点), objA
不是类型的好名字。
You should remove from parameters myObj
and change it in the body of method to T
like this 您应该从参数
myObj
删除并将其在方法主体中更改为T
如下所示
public T myCall<T>(string[] args)
{
webAPI myAPI = new webAPI();
returnData = myAPI.callApi("http://localhsot/api", args , "POST");
XmlSerializer serializer = new XmlSerializer(typeof(T));
using (TextReader reader = new StringReader(returnData))
{
T result = (T)serializer.Deserialize(reader);
return result;
}
}
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