C#当窗体大小改变时，窗体中的控件大小也随之改变

发布时间：2021-05-21 04:50:05 所属栏目：大数据来源： https://blog.csdn.net/kasama1

导读：第一种：推荐在窗体中加上如下代码即可实现，但窗体点击放大按钮时却不能改变控件大

第一种：推荐

在窗体中加上如下代码即可实现，但窗体点击放大按钮时却不能改变控件大小。

复制代码

private ?Size beforeResizeSize? = ?Size.Empty;

protected override void ?OnResizeBegin(EventArgs e)
{
base .OnResizeBegin(e);
????? beforeResizeSize? = this .Size;
}
void ?OnResizeEnd(EventArgs e)
{
?????? base .OnResizeEnd(e);
?????? // 窗口resize之后的大小
????? Size endResizeSize? = this .Size;
?????? 获得变化比例
?????? float ?percentWidth? = ?( float )endResizeSize.Width? / ?beforeResizeSize.Width;
?????? float ?percentHeight? = ?( float )endResizeSize.Height? / ?beforeResizeSize.Height;
?????? foreach ?(Control control? in this .Controls)
????? {
if ?(control? is ?DataGridView)
continue ;
???????????? 按比例改变控件大小
??????????? control.Width? = ?( int )(control.Width? * ?percentWidth);
??????????? control.Height? = ?( int )(control.Height? * ?percentHeight);
???????????? 为了不使控件之间覆盖位置也要按比例变化
??????????? control.Left? = ?( int )(control.Left? * ?percentWidth);
??????????? control.Top? = ?( int )(control.Top? * ?percentHeight);
?????}
}

复制代码

第二种：效果很差

在加载事件中写 AutoScale(this);

设置窗口控件随窗口大小改变而改变
public new void ?AutoScale(Form frm)
{
??????frm.Tag? = ?frm.Width.ToString()? + " , " + ?frm.Height.ToString();
??????frm.SizeChanged? += new EventHandler(frm_SizeChanged);
}
void ?frm_SizeChanged( object ?sender,EventArgs e)
{
?????? string [] tmp? = ?((Form)sender).Tag.ToString().Split( ' ' );
?????? float ?width? = ?( float )((Form)sender).Width? / ?( float )Convert.ToInt32(tmp[ 0 ]);
?????? float ?height? = ?( float )((Form)sender).Height? / ?( 1 ]);
??????((Form)sender).Tag? = ?((Form)sender).Width.ToString()? + " + ?((Form)sender).Height;
?????? string ?str? = ?((Form)sender).Tag.ToString();
?????? ?int font_size = Int32.Parse(str.Substring(0,str.IndexOf(','))) / 100; ?????? 也可使字体随之改变 float ?tempWidth = 0F;
?????? float ?tempHeight = 0F;
?????? in ?((Form)sender).Controls)
??????{
??????????? continue ;
??????????? is ?TextBox)
???????????{
????????????????tempHeight? = ?height;
????????????????tempWidth? = width;
???????????}?
??????????? is ?Button)
???????????{
???????????????? if ?( this .WindowState? == ?FormWindowState.Maximized)
tempHeight? -= 0.4F ;
???????????????? else
tempHeight? += 0.2F ;
????????????????control.Scale( new ?SizeF(tempWidth,tempHeight));
???????????}
??????????? else
???????????{
????????????????control.Scale( new ?SizeF(width,height));
???????????}
??????}
} 第三种：http://www.cnblogs.com/kenkao/archive/2008/11/10/1330623.html

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

namespace ?WindowsApplication3
{
partial class ?Form1 : Form
{
/* ******************设定程序中可能要用到的用以存储初始数据的动态数组及相关私有变量***************************** */ ?

private ?ArrayList InitialCrl? = new ?ArrayList(); 用以存储窗体中所有的控件名称 private ?ArrayList CrlLocationX? = 用以存储窗体中所有的控件原始位置 private ?ArrayList CrlLocationY? = private ?ArrayList CrlSizeWidth? = 用以存储窗体中所有的控件原始的水平尺寸 private ?ArrayList CrlSizeHeight? = 用以存储窗体中所有的控件原始的垂直尺寸 private int ?FormSizeWidth; 用以存储窗体原始的水平尺寸 int ?FormSizeHeight; 用以存储窗体原始的垂直尺寸 double ?FormSizeChangedX; 用以存储相关父窗体/容器的水平变化量 double ?FormSizeChangedY; 用以存储相关父窗体/容器的垂直变化量? int ?Wcounter? = 0 ; 为防止递归遍历控件时产生混乱，故专门设定一个全局计数器

public ?Form1()
{
InitializeComponent();
}?

void ?Form1_Load( {
GetInitialFormSize();
this.AutoScroll = true;
this.SetAutoSizeMode(FormSizeWidth,FormSizeHeight);
this.AutoScrollMinSize.Width = FormSizeWidth;
this.AutoScrollMinSize.Height = FormSizeHeight;
GetAllCrlLocation( this );
GetAllCrlSize( this );
}
void ?GetAllCrlLocation(Control CrlContainer) 获得并存储窗体中各控件的初始位置
{
foreach ?(Control iCrl? in ?CrlContainer.Controls)
{?
if ?(iCrl.Controls.Count? > 0 )
GetAllCrlLocation(iCrl);?
InitialCrl.Add(iCrl);
CrlLocationX.Add(iCrl.Location.X);
CrlLocationY.Add(iCrl.Location.Y);?
}
}?

void ?GetAllCrlSize(Control CrlContainer) 获得并存储窗体中各控件的初始尺寸 in ?CrlContainer.Controls)
{
0 )
GetAllCrlSize(iCrl);
CrlSizeWidth.Add(iCrl.Width);
CrlSizeHeight.Add(iCrl.Height);
}?
}?

void ?GetInitialFormSize() 获得并存储窗体的初始尺寸
{?
FormSizeWidth? = this .Size.Width;
FormSizeHeight? = this .Size.Height;
}?

void ?Form1_SizeChanged( {
?MessageBox.Show("窗体尺寸改变");
Wcounter? = 0 ;
int ?counter? = this .Size.Width? < ?FormSizeWidth? || this .Size.Height? < ?FormSizeHeight)
如果窗体的大小在改变过程中小于窗体尺寸的初始值，则窗体中的各个控件自动重置为初始尺寸，且窗体自动添加滚动条 foreach ?(Control iniCrl? in ?InitialCrl)
{
iniCrl.Width? = ?( int )CrlSizeWidth[counter];
iniCrl.Height? = ?( int )CrlSizeHeight[counter];
Point point? = new ?Point();
point.X? = ?( int )CrlLocationX[counter];
point.Y? = ?( int )CrlLocationY[counter];
iniCrl.Bounds? = new ?Rectangle(point,iniCrl.Size);
counter ++ ;
}
this .AutoScroll? = true ;
}
else
否则，重新设定窗体中所有控件的大小（窗体内所有控件的大小随窗体大小的变化而变化） false ;
ResetAllCrlState( this );
}
}?

void ?ResetAllCrlState(Control CrlContainer) 重新设定窗体中各控件的状态（在与原状态的对比中计算而来）
{?
FormSizeChangedX? = ?( double ) this .Size.Width? / ?( double )FormSizeWidth;
FormSizeChangedY? = ?( this .Size.Height? / ?( double )FormSizeHeight;

foreach ?(Control kCrl? string name = kCrl.Name.ToString();
MessageBox.Show(name);
MessageBox.Show(Wcounter.ToString()); */ ?
if ?(kCrl.Controls.Count? > 0 )
{
ResetAllCrlState(kCrl);?
}?
Point point? = int )(( int )CrlLocationX[Wcounter]? * ?FormSizeChangedX);
point.Y? = ?( int )CrlLocationY[Wcounter]? * ?FormSizeChangedY);
kCrl.Width? = ?( int )CrlSizeWidth[Wcounter]? * ?FormSizeChangedX);
kCrl.Height? = ?( int )CrlSizeHeight[Wcounter]? * ?FormSizeChangedY);
kCrl.Bounds? = Wcounter ++ ;?
}
}?
}?
} ? 第四种：

C#实现窗体控件随窗体大小改变(包括字体大小) 修正版

? http://www.cnblogs.com/jason-liu-blogs/archive/2012/10/28/2743243.html ?

复制代码

private float X;

float Y;

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);                
            }
        }
        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 = (3]) * newy;
                con.Top = (int)(a);
                Single currentSize = Convert.ToSingle (mytag[4]) * Math.Min(newx,newy);
                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,this);
            this.Text = this.Width.ToString() +" "+ this.Height.ToString();

        }

 

在Form_Load里面添加:  

this.Resize += new EventHandler(Form1_Resize);    
  
//X = this.Width;    
Y = this.Height;    
   

setTag (this);  
Form1_Resize(object(),255)">new EventArgs());x,y可在实例化时赋值,最后这句是新加的，在MDI时有用

（编辑：北几岛）

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