如何只使用一个简单的类在C＃中创建一个Form [英] How to Use only a simple class to create a Form in C#

问题描述

你好再次代码项目

这次问题真是令人困惑，

我希望大家都知道如何使用VS创建表单。

但我的问题略有不同，我不想通过不使用默认模板来创建Win Forms应用程序，但我只使用类文件来创建它。

我为什么需要这个？

我知道很多人会问这个问题，实际上我正在创建一个自定义C＃编译器，使用C＃代码提供程序和编译器（有经验的用户会知道这个）它从文本框中读取代码然后将其编译为程序集，但问题是，它只运行控制台应用程序。或者它只是运行类。这就是我想这样做的原因。


PS：我想要一个代码，用户也可以在这个代码中添加控件。它支持纯C＃所以我认为它是可能的....

解决方案

一个窗口表单只是一个派生自System.Windows.Forms.Form [ ^ ]类。所以，的确，这就是你所要做的一切。如果你曾经看过一个Windows Forms项目，你可以自己发现这一切。



你甚至可以拥有一个简单的应用程序这只是打开一个System.Windows.Forms.Form，如下面的代码所示。并不是说这个形式会做任何明智的事情，但是你可以编写一个程序，然后修改表单就像添加控件并挂钩事件处理程序等。



< pre lang =cs> 使用系统;
使用 System.Collections.Generic;
使用 System.Linq;
使用 System.Windows.Forms;

命名空间 JustAForm
{
static class 程序
{
/// < 摘要 >
/// 应用程序的主要入口点。
/// < / summary >
[STAThread]
static void Main（）
{
Application.EnableVisualStyles（）;
Application.SetCompatibleTextRenderingDefault（ false ）;
Application.Run（ new Form（））; // 这只是为了说明可以打开一个空表格。
}
}
}

问候，

- Manfred

如果我了解你，你想创建一个没有Visual Studio Designer的Windows窗体。你可以：

  public   class  Form1 ：表格
 {
按钮按钮1;  //  如果需要，可添加更多控件 
 
  void  InitializeComponent（）
 {
 button1 =  new  Button（）; 
 
  this  .SuspendLayout（）; 
 button1.Name =   button1; 
 button1.Text =  按钮1; 
 button1.Size =  new 大小（ 250 ， 150 ）; 
 button.Location =  new 点（ 100 ， 100 ）; 
 button1.Click + = button1_Click; 
  //  如果需要，可添加更多初始化代码 
 
 < span class =code-comment> //  初始化您的其他控件 
 
 此 .Controls.Add（按钮1）; 
  //  将您的其他控件添加到表单 
 
 < span class =code-keyword> this  .Name =   Form1; 
  this  .Text =   Form1< /跨度>; 
  this  .ResumeLayout（ false ）; 
  this  .PerformLayout（）; 
} 
  public  Form1（）
 {
 InitializeComponent（）; 
} 
  void  button1_Click（ object  sender，EventArgs e）
 {
  //  您的按钮点击代码 
} 
} 

Quote：

其实我正在创建一个自定义C＃编译器

重要的附加信息：如果要编译Windows窗体应用程序，请不要忘记添加对System.Drawing.dll和System.Windows.Forms.dll的引用



希望这会有所帮助。

Hello Again Code project
This time the question is really confusing,
I hope everybody knows how do you create a Form using VS.
But my question is slightly different, I don't want to create a Win Forms application by not using the default template but I will use only a class file to create it.
Why do I need this?
I know many of you would ask this, Actually I am creating a custom C# compiler, using C# code provider, and compiler (experienced users would know this) It reads the code from a text box and then compiles it to an assembly, but the problem is, it only runs console applications. Or it just runs classes. That's the reason I wanna do this.

PS : I want such a code in which the user would also be able to add controls to the form. It supports pure C# so I think it's possible....

解决方案

A windows form is just a class that is derived from System.Windows.Forms.Form[^] class. So yes indeed that is all you'll have to do. If you've ever had a look at a Windows Forms project you could have "discovered" that all on your own.

You could even have a "simple" application that just opens a System.Windows.Forms.Form like in the code below. Not that this form would do anything sensible, but you could write a program that would then modify the form like adding controls to it and hooking up event handlers etc.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace JustAForm
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form()); // This is just to illustrate that it is possible to open up an empty Form.
        }
    }
}

Regards,

— Manfred

Hi,

If I understand you, you want to create a Windows Form without the Visual Studio Designer. You can:

public class Form1 : Form
{
    Button button1; // add more controls if you want
    
    void InitializeComponent()
    {
         button1 = new Button();

         this.SuspendLayout();
         button1.Name = "button1";
         button1.Text = "Button 1";
         button1.Size = new Size(250, 150);
         button.Location = new Point(100, 100);
         button1.Click += button1_Click; 
         // add more initialization code if you want
        
         // initialize your other controls

         this.Controls.Add(button1);
         // add your other controls to the form

         this.Name = "Form1";
         this.Text = "Form1";
         this.ResumeLayout(false);
         this.PerformLayout();
    }
    public Form1()
    {
         InitializeComponent();
    }
    void button1_Click(object sender, EventArgs e)
    {
          // your button click code
    }
}

Quote:

Actually I am creating a custom C# compiler

Important additional information: if you want to compile a Windows Forms application, don't forget to add a reference to "System.Drawing.dll" and to "System.Windows.Forms.dll"

Hope this helps.

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