c# winform 根據窗體自動調整控件

一、概述

     本文要實現的功能是:當窗體最大化時，控件的大小可以隨窗體一起變化。開發環境，vs2010 c# winform,窗體名稱采用默認的Form1.

2、把調整控件大小的方法放到一個類中：FormSetSelfAuto.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;


namespace Kaifafanli
{
   public class FormSetSelfAuto
    {
        private float X;
        private float Y;
        public float _x
        {
            set { X = value; }
        }
        public float _y
        {
            set { Y = value; }
        }
       //獲取控件的width,height,left,top,字體的大小值，存放在控件的tag屬性中
        public void setTag(Control cons)
        { 
         //遍歷窗體中的控件
            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);
                }
            }
        }
       //根據窗體大小調整控件大小 
       public void setControls(float newx,float newy,Control cons)
        { 
          //遍歷窗體中的控件，重新設置控件的值
            foreach(Control con in cons.Controls)
            {
            //獲取控件tag屬性值，並分割后存儲字符串數組
                string[] mytag=con.Tag.ToString().Split(new char[]{':'});
                float a = Convert.ToSingle(mytag[0]) * newx;//根據窗體縮放比例確定控件的寬度值
                con.Width = (int)a;
                a = Convert.ToSingle(mytag[1]) * newy;
                con.Height = (int)a;//高度

                a = Convert.ToSingle(mytag[2]) * newx;
                con.Left = (int)a;//左邊緣距離
                a = Convert.ToSingle(mytag[3]) * newy;
                con.Top = (int)a;//上邊緣距離
                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);
                }

            }
        }
       public void form_Resize(Form fr)
       {
           float newx = (fr.Width) / X;
           float newy = (fr.Height) / Y;
           setControls(newx, newy, fr);
           fr.Text = fr.Width.ToString() + " " + fr.Height.ToString();
       }
    }
}

3、在窗體Form1中的調用方法

Form1的代碼如下所示：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

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

       
        FormSetSelfAuto fa = new FormSetSelfAuto();
        private void Form1_Load(object sender, EventArgs e)
        {
            this.Resize += new EventHandler(Form1_Resize);
            fa._x = this.Width;
            fa._y = this.Height;
            fa.setTag(this);
        }

        private void Form1_Resize(object sender, EventArgs e)
        {
            fa.form_Resize(this);
        }
    }
}