C#--winform窗体控件随窗体变化

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/ZLK961543260/article/details/80257418

今天说一下在winform窗体应用中，如何使窗体内控件大小随着窗体变化。因为在默认的情况下，点击最大化的按钮，我们发现窗体内的控件大小不变，这就有些尴尬了！

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
using System.Threading;

namespace Sequence_C_sharp
{
    public partial class Form1 : Form
    {
        //------------------------------------------------------  控件大小随窗体大小变化
        private float X;
        private float Y;

        private void setTag(Control cons)
        {
            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);
            }
        }

        private void setControls(float newx, float newy, Control cons)
        {
            foreach (Control con in cons.Controls)
            {
                string[] mytag = con.Tag.ToString().Split(new char[] { ':' });
                float a = Convert.ToSingle(mytag[0]) * newx;
                con.Width = (int)a;
                a = Convert.ToSingle(mytag[1]) * newy;
                con.Height = (int)(a);
                a = Convert.ToSingle(mytag[2]) * newx;
                con.Left = (int)(a);
                a = Convert.ToSingle(mytag[3]) * newy;
                con.Top = (int)(a);
                Single currentSize = Convert.ToSingle(mytag[4]) * Math.Min(newx, newy);
                con.Font = new Font(con.Font.Name, currentSize, con.Font.Style, con.Font.Unit);
                if (con.Controls.Count > 0)
                {
                    setControls(newx, newy, con);
                }
            }

        }

        void Form1_Resize(object sender, EventArgs e)
        {
            float newx = (this.Width) / X;
            float newy = this.Height / Y;
            setControls(newx, newy, this);
            this.Text = this.Width.ToString() + " " + this.Height.ToString();

        }
        //--------------------------------------------------------------------------   控件大小随窗体大小变化结束

        private void Form1_Load(object sender, EventArgs e)
        {

            //--------------------------------控件大小随窗体大小变化
            this.Resize += new EventHandler(Form1_Resize);

            X = this.Width;
            Y = this.Height;

            setTag(this);
            Form1_Resize(new object(), new EventArgs());
            //---------------------------------控件大小随窗体大小变化
        }

}

复制上述代码到项目中，即可实现。其中setTag，setControls，Form1_Resize为自己定义的方法，Form1_Load为窗口加载的方法。在项目中双击想要控制的窗体，就会进入Form1_Load中。