1.新建用户控件,取名MyForm。
2.将默认的UserControl改成Form
3.在类中添加以下代码
private float X, Y; //获得控件的长度、宽度、位置、字体大小的数据 private void setTag(Control cons)//Control类,定义控件的基类 { foreach (Control con in cons.Controls) { con.Tag = con.Width + ":" + con.Height + ":" + con.Left + ":" + con.Top + ":" + con.Font.Size;//获取或设置包含有关控件的数据的对象 if (con.Controls.Count > 0) setTag(con);//递归算法 } } private void setControls(float newx, float newy, Control cons)//实现控件以及字体的缩放 { 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]) * newy; con.Font = new Font(con.Font.Name, currentSize, con.Font.Style, con.Font.Unit); if (con.Controls.Count > 0) { setControls(newx, newy, con);//递归 } } } private void MyForm_Resize(object sender, EventArgs e) { float newx = (this.Width) / X;//当前宽度与变化前宽度之比 float newy = this.Height / Y;//当前高度与变化前宽度之比 setControls(newx, newy, this); this.Text = this.Width.ToString() + " " + this.Height.ToString(); //窗体标题显示长度和宽度 } protected override void OnLoad(EventArgs e) { base.OnLoad(e); this.Resize += new EventHandler(MyForm_Resize); X = this.Width; Y = this.Height; setTag(this); }
4.新建windows窗口,继承自定义控件
5.随便添加一个控件到Form1上,测试。