我可以将类型字符串转换为类类型 [英] May I convert type string to a class type

问题描述

我做了类似下面的事情：

i did something like below:

string name="something";

var upload = new Upload
            {
                UploadID=1,
                ImageName = name,

            };

这里上传是一个类名，有两个属性，如：

here Upload is a class name which has two property like:

public class Upload
    {
        public int UploadID { get; set; }
        public string ImageName { get; set; }
    }

无法将字符串分配给类类型。那么如何将字符串类型转换为上传类类型???

it's not possible to assign a string to a class type . So how can I convert the string type to the upload class type???

推荐答案

这应该可以正常工作 - 如果你的目标是V3.0或更高版本。 NET框架 - 它不会在下面工作。

MSDN：Object Initializers [ ^ ]

例如，这有效：

That should work fine - if you are targeting V3.0 or above of the .NET framework - it won't work below that.
MSDN: Object Initializers[^]
For example, this works:

class Program
    {
    static void Main(string[] args)
        {
        string name = "something";

        var upload = new Upload
        {
            UploadID = 1,
            ImageName = name,
        };
        Console.ReadLine();
        }
    }
public class Upload
    {
    public int UploadID { get; set; }
    public string ImageName { get; set; }
    }

如果我理解你的话......

这是可能的，但你需要定义类构造函数 [ ^ ]。

If i understand you well...
It's possible, but you need to define class constructor[^].

public class Upload
    {
        //variables
        private int id=0;
        private string simagename = String.Empty;

        //
        public Upload(int iid, string sname){id = iid; simagename = sname;}
        public int UploadID { get; set; }
        public string ImageName { get; set; }
    }

用法：

Usage:

Upload u = new Upload(1, "something");

或

or

int myid = 1;
string simagename = "Wallpaper.jpg";
Upload u = new Upload(myid, simagename);

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