记录:按比例缩放控件
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;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
//1、获取窗口的大小:这里使用Tag保存,也可以定义变量保存
this.Tag = this.Width.ToString() + "," + this.Height.ToString();
//2、不能隐式的去生成这个事件,就是不能直接在属性栏里面双击自动生成,
// 因为这个SizeChanged比获取窗口大小提前执行,不然会空引用异常。
// InitializeComponent(),组件初始化,这个必须先执行,会触发SizeChanged,窗体大小
this.SizeChanged += new EventHandler(Form1_SizeChanged);
}
private void Form1_SizeChanged(object sender, EventArgs e)
{
string[] data = ((Form)sender).Tag.ToString().Split(',');
float width = (float)((Form)sender).Width / (float)Convert.ToInt16(data[0]);
float height = (float)((Form)sender).Height / (float)Convert.ToInt16(data[1]);
// 更新比例
((Form)sender).Tag = ((Form)sender).Width.ToString() + "," + ((Form)sender).Height;
// 根据比例重绘所有控件
foreach (Control control in ((Form)sender).Controls)
{
control.Scale(new SizeF(width, height));
}
}
}
}