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C#分屏控件用法实例

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本文实例中的自定义类PictureBox继承于UserControl，最终实现简单的分屏功能。分享给大家供大家参考之用。具体实现代码如下：
public partial class PictureControl : UserControl
{
     public event MouseEventHandler PicControl_DoubleClick;
     private int picNum;
     /// <summary>
     /// 屏幕个数
     /// </summary>
     public int PicNum
     {
       get { return picNum; }
       set
       {
         if (value == 4 || value == 6 || value == 9 || value == 12 || value == 16 || value == 20 || value == 25) //只能
 
是4、6、9、12、16、20、25
         {
           picNum = value;
           this .SetPictureBox( this .picNum);
         }
         else
         {
           this .PicNum = 12;
           this .SetPictureBox( this .picNum);
         }
       }
     }
 
     public PictureControl()
     {
       this .picNum = 4;
       InitializeComponent();
       this .SetPictureBox( this .picNum);
     }
 
     /// <summary>
     /// 根据个数布局PictureBox
     /// </summary>
     /// <param name="num"></param>
     private void SetPictureBox( int num)
     {
       this .Controls.Clear();
       Size size = this .Size;
       switch (num)
       {
         case 4: this .SetPictureBox(2, 2, size); break ;
         case 6: this .SetPictureBox(2, 3, size); break ;
         case 9: this .SetPictureBox(3, 3, size); break ;
         case 12: this .SetPictureBox(3, 4, size); break ;
         case 16: this .SetPictureBox(4, 4, size); break ;
         case 20: this .SetPictureBox(4, 5, size); break ;
         case 25: this .SetPictureBox(5, 5, size); break ;
       }
     }
 
     /// <summary>
     /// 布局pictureBox
     /// </summary>
     /// <param name="x">几行</param>
     /// <param name="y">几列</param>
     /// <param name="size">当前控件的大小</param>
     private void SetPictureBox( int x, int y,Size size)
     {
       int num = 0;
       for ( int i = 0; i < x; i++)
       {
         for ( int j = 0; j < y; j++)
         {
           PictureBox pic = new PictureBox();
           pic.SizeMode = PictureBoxSizeMode.Zoom;                     //设置自动缩放
           pic.BackColor = Color.White;                          //设置背景颜色
           pic.Location = new Point((size.Width / y) * j, (size.Height / x) * i);     //设置Location
           pic.BorderStyle = BorderStyle.FixedSingle;                   //设置边框
           pic.MouseDoubleClick += new MouseEventHandler(pic_MouseDoubleClick);      //订阅控件双击事件
           pic.Size = new Size(size.Width / y, size.Height / x);              //设置控件大小  
           pic.Tag = num;                                 //设定控件编号即屏幕序号
           this .Controls.Add(pic);                             //添加
           num++;
         }
       }
     }
     void pic_MouseDoubleClick( object sender, MouseEventArgs e)
     {
       if ( this .PicControl_DoubleClick != null )
       {
         this .PicControl_DoubleClick(sender, e); //将动态添加的控件的双击事件 传向控件体外。
       }
     }
     private void PictureControl_SizeChanged( object sender, EventArgs e)
     {
       this .SetPictureBox( this .picNum);
     }
     private PictureBox GetPicByIndex( int index)
     {
       foreach (Control c in this .Controls)
       {
         if (Convert.ToInt32(c.Tag) == index)
         {
           return (PictureBox)c;
         }
       }
       PictureBox p = new PictureBox();
       p.Tag = -1;
       return p;
     }
     /// <summary>
     /// 根据屏幕序号设置图像
     /// </summary>
     /// <param name="index">屏幕号</param>
     /// <param name="img">图像</param>
     public void SetImageByIndex( int index, Image img)
     {
       GetPicByIndex(index).Image = img;
     }
}
 
public partial class PictureControl : UserControl
{
     public event MouseEventHandler PicControl_DoubleClick;
     private int picNum;
     /// <summary>
     /// 屏幕个数
     /// </summary>
     public int PicNum
     {
       get { return picNum; }
       set
       {
         if (value == 4 || value == 6 || value == 9 || value == 12 || value == 16 || value == 20 || value == 25) //只能
 
是4、6、9、12、16、20、25
         {
           picNum = value;
           this .SetPictureBox( this .picNum);
         }
         else
         {
           this .PicNum = 12;
           this .SetPictureBox( this .picNum);
         }
       }
     }
 
     public PictureControl()
     {
       this .picNum = 4;
       InitializeComponent();
       this .SetPictureBox( this .picNum);
     }
 
     /// <summary>
     /// 根据个数布局PictureBox
     /// </summary>
     /// <param name="num"></param>
     private void SetPictureBox( int num)
     {
       this .Controls.Clear();
       Size size = this .Size;
       switch (num)
       {
         case 4: this .SetPictureBox(2, 2, size); break ;
         case 6: this .SetPictureBox(2, 3, size); break ;
         case 9: this .SetPictureBox(3, 3, size); break ;
         case 12: this .SetPictureBox(3, 4, size); break ;
         case 16: this .SetPictureBox(4, 4, size); break ;
         case 20: this .SetPictureBox(4, 5, size); break ;
         case 25: this .SetPictureBox(5, 5, size); break ;
       }
     }
 
     /// <summary>
     /// 布局pictureBox
     /// </summary>
     /// <param name="x">几行</param>
     /// <param name="y">几列</param>
     /// <param name="size">当前控件的大小</param>
     private void SetPictureBox( int x, int y,Size size)
     {
       int num = 0;
       for ( int i = 0; i < x; i++)
       {
         for ( int j = 0; j < y; j++)
         {
           PictureBox pic = new PictureBox();
           pic.SizeMode = PictureBoxSizeMode.Zoom;                     //设置自动缩放
           pic.BackColor = Color.White;                          //设置背景颜色
           pic.Location = new Point((size.Width / y) * j, (size.Height / x) * i);     //设置Location
           pic.BorderStyle = BorderStyle.FixedSingle;                   //设置边框
           pic.MouseDoubleClick += new MouseEventHandler(pic_MouseDoubleClick);      //订阅控件双击事件
           pic.Size = new Size(size.Width / y, size.Height / x);              //设置控件大小  
           pic.Tag = num;                                 //设定控件编号即屏幕序号
           this .Controls.Add(pic);                             //添加
           num++;
         }
       }
     }
     void pic_MouseDoubleClick( object sender, MouseEventArgs e)
     {
       if ( this .PicControl_DoubleClick != null )
       {
         this .PicControl_DoubleClick(sender, e); //将动态添加的控件的双击事件 传向控件体外。
       }
     }
     private void PictureControl_SizeChanged( object sender, EventArgs e)
     {
       this .SetPictureBox( this .picNum);
     }
     private PictureBox GetPicByIndex( int index)
     {
       foreach (Control c in this .Controls)
       {
         if (Convert.ToInt32(c.Tag) == index)
         {
           return (PictureBox)c;
         }
       }
       PictureBox p = new PictureBox();
       p.Tag = -1;
       return p;
     }
     /// <summary>
     /// 根据屏幕序号设置图像
     /// </summary>
     /// <param name="index">屏幕号</param>
     /// <param name="img">图像</param>
     public void SetImageByIndex( int index, Image img)
     {
       GetPicByIndex(index).Image = img;
     }
}

原文：https://www.cnblogs.com/zhangq/p/8177323.html

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