窗体最大化，控件如何最大？

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;
/// <summary>
/// 本项目测试当窗体最大化的时候，控件是否随着比例性放大？
/// </summary>
namespace resize
{
public partial class Form1 : Form
{
private float X;//当前窗体的宽度
private float Y;//当前窗体的高度
private bool IsFirst = true;
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

X = this.Width;//获取窗体的宽度
Y = this.Height;//获取窗体的高度
setTag(this);//调用方法

}

protected override void OnResize(EventArgs e)
{
if ((WindowState == FormWindowState.Maximized)|| (WindowState == FormWindowState.Normal))
{
//最大化时所需的操作
//MessageBox.Show("max");
//if (IsFirst) { IsFirst = false; return; }
float newx = (this.Width) / X; //窗体宽度缩放比例
float newy = (this.Height) / Y;//窗体高度缩放比例
setControls(newx, newy, this);//随窗体改变控件大小
}
else if (WindowState == FormWindowState.Minimized)
{
//最小化时所需的操作
//MessageBox.Show("min");
}

}

 

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);
}
}

//根据窗体大小调整控件大小
private 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)
{

string[] mytag = con.Tag.ToString().Split(new char[] { ':' });//获取控件的Tag属性值，并分割后存储字符串数组
float a = System.Convert.ToSingle(mytag[0]) * newx;//根据窗体缩放比例确定控件的值，宽度
con.Width = (int)a;//宽度
a = System.Convert.ToSingle(mytag[1]) * newy;//高度
con.Height = (int)(a);
a = System.Convert.ToSingle(mytag[2]) * newx;//左边距离
con.Left = (int)(a);
a = System.Convert.ToSingle(mytag[3]) * newy;//上边缘距离
con.Top = (int)(a);
Single currentSize = System.Convert.ToSingle(mytag[4]) * newy;//字体大小
con.Font = new Font(con.Font.Name, currentSize, con.Font.Style, con.Font.Unit);
if (con.Controls.Count > 0)
{
setControls(newx, newy, con);
}
}
}

private void textBox1_TextChanged(object sender, EventArgs e)
{

}

private void textBox2_TextChanged(object sender, EventArgs e)
{

}
}