MFC对话框控件随对话框的大小变化

//控件随窗体自动缩放
string[] tmp = new string[2];

tmp = ((Form)sender).Tag.ToString().Split(',');

float width = (float)((Form)sender).Width / (float)Convert.ToInt16(tmp[0]);
float heigth = (float)((Form)sender).Height / (float)Convert.ToInt16(tmp[1]);

((Form)sender).Tag = ((Form)sender).Width.ToString() + "," + ((Form)sender).Height;

foreach (Control control in ((Form)sender).Controls)
{
control.Scale(new SizeF(width, heigth));
}