我要评论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;
}
}
希望本文所述实例对大家c#程序设计有所帮助。
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