winform控件随窗体大小变化而变化

有如下3种方法：

方法1

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

 

namespace MarkPrinter

{

     public partial class ResizeTest : Form

     {

         public float X;

         public float Y;

         public float y;

 

         public ResizeTest()

         {

             InitializeComponent();

         }

 

         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]) * newy;

 

                 //改变字体大小

                 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);

         }

 

         private void ResizeTest_Load(object sender, EventArgs e)

         {

             this.Resize += new EventHandler(Form1_Resize);

 

             X = this.Width;

             Y = this.Height;

             y = this.statusStrip1.Height;

             setTag(this);

         }

     }

}

 

方法2

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

 

namespace MarkPrinter

{

     public partial class ResizeTest : Form

     {

         public float X;

         public float Y;

         public float y;

 

         public ResizeTest()

         {

             InitializeComponent();

         }

 

         private void ResizeTest_Load(object sender, EventArgs e)

         {

             AutoScale(this);

         }

 

         /// <summary>

         /// 控件随窗体自动缩放

         /// </summary>

         /// <param name="frm"></param>

         public static void AutoScale(Form frm)

         {

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

             frm.SizeChanged += new EventHandler(frm_SizeChanged);

         }

 

         static void frm_SizeChanged(object sender, EventArgs e)

         {

             string[] 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));

             }

         }

     }

}

 

用此方法时，如果界面一开始就要求最大化，在最大化之前就要调用AutoScale方法

方法3

将控件放进容器中， 然后使用控件的Dock属性来获取或设置控件停靠到父容器的哪一个边缘。(略)

总结：上面方法的原理，就是先算出来缩放的比例，然后在按照同样的比例对form中的控件进行缩放。