第一步：先添加下面的代码
在Form_Load里面添加:
this.Resize += new EventHandler(Form1_Resize);
//X = this.Width;
//Y = this.Height;
setTag (this);
Form1_Resize(new object(),new EventArgs());//x,y可在实例化时赋值,最后这句是新加的，在MDI时有用
第二步：再使用下面的功能代码
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();
}