【2017-12-06】winfrom 窗体自启最大化，控件自适应

先将窗体windowstate属性设置为Maximized    

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        //获取所有控件属性（长、宽、位置、字体大小）
        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 > )
                    setTag(con);

                label1.Text += con.Tag;
            }
        }

        //设置控件动态大小
        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[]) * newx;
                con.Width = (int)a;
                a = Convert.ToSingle(mytag[]) * newy;
                con.Height = (int)(a);
                a = Convert.ToSingle(mytag[]) * newx;
                con.Left = (int)(a);
                a = Convert.ToSingle(mytag[]) * newy;
                con.Top = (int)(a);
                Single currentSize = Convert.ToSingle(mytag[]) * Math.Min(newx, newy);
                con.Font = new Font(con.Font.Name, currentSize, con.Font.Style, con.Font.Unit);
                if (con.Controls.Count > )
                {
                    setControls(newx, newy, con);
                }
            }

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            setTag(this);
            float newx = (float)this.Width / ;   //窗体制作时的宽度
            float newy = (float)this.Height / ;  //窗体制作时的高度
            label1.Text = newx.ToString();
            setControls(newx, newy, this);

        }

    }