C#实现窗体控件随窗体大小改变(包括字体大小)

一,创建AutoSizeFormClass类
using System;
using System.Drawing;
using System.Windows.Forms;

namespace WindowsFormsApp15
{
public static class AutoSizeFormClass
{
public static float X;
public static float Y;
public static 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);
        }
    }
    public static void setControls(float newx, float newy, Control cons)
    {
        foreach (Control con in cons.Controls)
        {
            if (con.Tag != null)
              {
                   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);
            } 
              }
            
        }
    }
}

}

二,MainFrom中添加：
using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace WindowsFormsApp15
{
public partial class MainFrom : Form
{
public MainFrom()
{
InitializeComponent();
}
[DllImport("user32")]
private static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, IntPtr lParam);
private const int WM_SETREDRAW = 0xB;
private void MainFrom_Resize(object sender, EventArgs e)
{
SendMessage(this.Handle, WM_SETREDRAW, 0, IntPtr.Zero);
float newx = (this.Width) / AutoSizeFormClass.X;
float newy = this.Height / AutoSizeFormClass.Y;
AutoSizeFormClass.setControls(newx, newy, this);
SendMessage(this.Handle, WM_SETREDRAW, 1, IntPtr.Zero);
this.Invalidate(true);
}
private void MainFrom_Load(object sender, EventArgs e)
{
this.Resize += new EventHandler(Form1_Resize);
AutoSizeFormClass.X = this.Width;
AutoSizeFormClass.Y = this.Height;
AutoSizeFormClass.setTag(this);
Form1_Resize(new object(), new EventArgs());
}
}
}