我如何创建一个类 [英] How I Create A Class

问题描述

嗨





我想为fileuploader代码创建一个类，并在该类中传递一个变量或参数我该怎么做请帮帮我





这里代码

Hi


I want to create a class for fileuploader code and pass a variable or parameter in that class How i do that Please help me


Here the Code

if (FileUpload1.HasFile)
       {
           byte[] img = new byte[FileUpload1.PostedFile.ContentLength];
           FileUpload1.PostedFile.InputStream.Read(img, 0, FileUpload1.PostedFile.ContentLength);


           string file_ext = "" + FileUpload1.PostedFile.FileName;
           string ext = Path.GetExtension(file_ext);

           Response.Write(FileUpload1.PostedFile.ContentLength);
          
           if ((ext.ToLower() == ".txt") || (ext.ToLower() == ".docx"))
           {
            
               File.WriteAllBytes(Server.MapPath("~/" + file_ext), img);

           }

我怎么样创建一个类，此代码的方法。

how i create a class , Method for this Code .

推荐答案

您将在ASP.NET中创建类，就像在.NET框架中创建类一样;或者我应该用其他语言说。像这样，

You will create the class in ASP.NET, just the way you create a class in .NET framework; or should I say in other languages. Like this,

public class MyClass {
   // members here..
}

然后在函数内部可以传递值，或者通过覆盖变量来填充成员。例如，如果你有一个变量来保存文件名，例如，

Then inside the functions you can pass the values, or populate the members by overriding the variables. For example, if you're having a variable to hold the file name such as,

public class MyClass {
   // static member
   public static string FileName { get; set; } 
}

您将把它传递给，

You will pass it as,

MyClass.FileName = "file-name.png";

等等...此外，最好还是阅读 MSDN文档指南 [ ^ ]。 ASP.NET允许您使用C＃和VB.NET开发Web应用程序，因此您可以阅读有关其中任何文档的文档并了解核心概念。

And so on... Furthermore, it would be better to read this MSDN documentation guide[^] about Classes in C#. ASP.NET allows you to develop web applications in C# and VB.NET, so you can read documentations about any of them and learn about core concepts.

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