C# 窗体程序拉伸控件自适应 + 动态加载控件

ゝ一纸荒年。 2023-10-09 13:04 46阅读 0赞

#### C\# 窗体程序拉伸控件自适应 ####

*  一、控件拉伸自适应
 *   *  1.新建一个C\#窗体程序
     *  2.添加一个类
 *  二.动态加载控件
 *   *  1.测试类

## 一、控件拉伸自适应 ##

### 1.新建一个C\#窗体程序 ###

using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    
    namespace Test_Form
    {
        
        public partial class Form1 : Form
        {
        
    		//定义X，y用于记录窗体初始大小
            private float X;
            private float Y;
    
            public Form1()
            {
        
                InitializeComponent();
            }
            FormSetSelfAuto fa = new FormSetSelfAuto();
            private void Form1_Load(object sender, EventArgs e)
            {
        
                this.Resize += new EventHandler(Form1_Resize);
                fa._x = this.Width;
                fa._y = this.Height;
                fa.setTag(this);
            }
            //重绘窗体
            private void Form1_Resize(object sender, EventArgs e)
            {
        
                fa.form_Resize(this);
            }
        }
    }

### 2.添加一个类 ###

using System;
    using System.Collections.Generic;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    
    namespace Test_Form
    {
        
        class FormSetSelfAuto
        {
        
            private float X;
            private float Y;
            public float _x
            {
        
                set {
         X = value; }
            }
            public float _y
            {
        
                set {
         Y = value; }
            }
            
            //获取控件的width,height,left,top,字体的大小值，存放在控件的tag属性中
            public void setTag(Control cons)
            {
        
                //遍历窗体中的控件
                foreach (Control con in cons.Controls)
                {
        
                    con.Tag = con.Width + ":" + con.Height + ":" + con.Left + ":" + con.Top + ":" + con.Font.Size;
                    if (con.Controls.Count > 0)
                    {
        
                        setTag(con);
                    }
                }
            }
            //根据窗体大小调整控件大小 
            public void setControls(float newx, float newy, Control cons)
            {
        
                //遍历窗体中的控件，重新设置控件的值
                foreach (Control con in cons.Controls)
                {
        
                    //获取控件tag属性值，并分割后存储字符串数组
                    string[] mytag = con.Tag.ToString().Split(new char[] {
         ':' });
                    float a = Convert.ToSingle(mytag[0]) * newx;//根据窗体缩放比例确定控件的宽度值
                    con.Width = (int)a;
                    a = Convert.ToSingle(mytag[1]) * newy;
                    con.Height = (int)a;//高度
    
                    a = Convert.ToSingle(mytag[2]) * newx;
                    con.Left = (int)a;//左边缘距离
                    a = Convert.ToSingle(mytag[3]) * newy;
                    con.Top = (int)a;//上边缘距离
                    Single currentSize = Convert.ToSingle(mytag[4]) * newy;
                    con.Font = new Font(con.Font.Name, currentSize, con.Font.Style, con.Font.Unit);
                    if (con.Controls.Count > 0)
                    {
        
                        setControls(newx, newy, con);
                    }
    
                }
            }
            public void form_Resize(Form fr)
            {
        
                float newx = (fr.Width) / X;
                float newy = (fr.Height) / Y;
                setControls(newx, newy, fr);
                fr.Text = fr.Width.ToString() + " " + fr.Height.ToString();
            }
        }
    }

此时，程序运行后拖动边框，内部控件随之拉伸。

## 二.动态加载控件 ##

### 1.测试类 ###

using System.Collections.Generic;
    using System.Runtime.InteropServices;
    
    namespace DynamicControl
    {
        
        public partial class Form1 : Form
        {
        
            //缓存已添加的控件
            Dictionary<String, Control> dictionary = new Dictionary<String, Control>();
    
            Random random = new Random();
    
            public Form1()
            {
        
                InitializeComponent();
            }
    
            private void AddTest_Click(object sender, EventArgs e)
            {
        
                String id = "C_" + random.Next().ToString();
    
                CheckBox box = new CheckBox();
                box.Text = id;
                box.Size = new Size(168, 35);
                box.Font = new Font("Microsoft YaHei UI", 8F, FontStyle.Regular, GraphicsUnit.Point, ((byte)(134)));
                box.ForeColor = Color.Black;
                box.Click += new EventHandler(box_Click);
                addNewControl(this.panel2, id, 2, 1, box);
            }
    
            void box_Click(object sender, EventArgs e)
            {
        
                MessageBox.Show("123");
            }
    
            public void addNewControl(Panel panel, String id, int stepX, int stepY, Control obj)
            {
        
                int count = dictionary.Count;
                //取父空间宽高
                int pw = panel.Width;
                int ph = panel.Height;
                //计算下一个控件位置
                int sw = obj.Width;
                int sh = obj.Height;
                int countX = pw / (sw + stepX);
                int countY = ph / (sh + stepY);
                //判断是否能容纳更多
                if (count >= countX * countY)
                {
        
                    return;
                }
                //计算位置
                int py = (count / countX) * sh + stepY;
                int px = (count % countX) * sw + stepX;
                obj.Location = new Point(px, py);
                //添加控件
                panel.Controls.Add(obj);
    
                //添加缓存
                if (dictionary.ContainsKey(id))
                {
        
                    dictionary.Remove(id);
                }
                dictionary.Add(id, obj);
    
            }
    
    
            //[DllImport("user32", EntryPoint = "HideCaret")]
            //private static extern bool HideCaret(IntPtr hWnd);
    
            //void txt_MouseDown(object sender, MouseEventArgs e)
            //{
        
            //    HideCaret(((CheckBox)sender).Handle);
            //}
    
            //void txt_MouseEnter(object sender, EventArgs e)
            //{
        
            //    HideCaret(((CheckBox)sender).Handle);
            //}
    
        }
    }

控件布局

![在这里插入图片描述][ebdf053048ae43d8ada726a94751c82f.png]

测试效果

![在这里插入图片描述][ff54f316cdea485eb20ff9ae13337be9.png]

事件测试

![在这里插入图片描述][6063e52c7e96432b82c4f6c0731b2de9.png]

[ebdf053048ae43d8ada726a94751c82f.png]: https://img-blog.csdnimg.cn/ebdf053048ae43d8ada726a94751c82f.png
[ff54f316cdea485eb20ff9ae13337be9.png]: https://img-blog.csdnimg.cn/ff54f316cdea485eb20ff9ae13337be9.png
[6063e52c7e96432b82c4f6c0731b2de9.png]: https://img-blog.csdnimg.cn/6063e52c7e96432b82c4f6c0731b2de9.png