制作自己的分隔线控件(LineH、LineV)

以前用 Delphi 开发软件的时候,如果需要在界面上放置一个分隔线,其自带的 TBevel 可以很好地满足这一要求。现在转到了 .NET 平台,竟找不到对应的控件(毕竟每次在 Paint 事件中画太麻烦)。而如果用 Panel 、 GroupBox 、 Label 来间接实现,效果不够理想,并且感觉怪怪的。因此决定自己实现一个分隔线控件,效果如下图所示:

在这里我只将核心代码贴出来, 关于创建自定义控件的相关知识可参考

MSDN :

ms-help://MS.VSCC.2003/MS.MSDNQTR.2003FEB.2052/vbcon/html/vbconControlCreation.htm

///

1<summary>
2
3///  水平分隔线 
4
5///  </summary>

[

ToolboxBitmap( typeof (LineH), "res.LineH.ico"),

Designer( typeof (LineHDesigner))

]

public class LineH : System.Windows.Forms.UserControl

{
//... ...

private void LineH_Paint( object sender, System.Windows.Forms.PaintEventArgs e)

{

Graphics g = e.Graphics;

Rectangle r = this .ClientRectangle;

Pen darkPen = new Pen(SystemColors.ControlDark, 1);

Pen LightPen = new Pen(Color.White);

// 用暗色调处理上边缘

g.DrawLine(darkPen, r.Left, r.Top, r.Right, r.Top);

// 用亮色调处理下边缘

g.DrawLine(LightPen, r.Left, r.Top + 1, r.Right, r.Top + 1);

}

//... ...

}

///

1<summary>
2
3///  垂直分隔线 
4
5///  </summary>

[

ToolboxBitmap( typeof (LineV), "res.LineV.ico"),

Designer( typeof (LineVDesigner))

]

public class LineV : System.Windows.Forms.UserControl

{
//... ...

private void LineV_Paint( object sender, System.Windows.Forms.PaintEventArgs e)

{

Graphics g = e.Graphics;

Rectangle r = this .ClientRectangle;

Pen darkPen = new Pen(SystemColors.ControlDark, 1);

Pen lightPen = new Pen(Color.White);

// 用暗色调处理左边缘

g.DrawLine(darkPen, r.Left, r.Top, r.Left, r.Bottom);

// 用亮色调处理右边缘
g.DrawLine(lightPen, r.Left + 1, r.Top, r.Left + 1, r.Bottom);

}

//... ...

}

欲完全实现上图所示效果,可参阅 http://blog.csdn.net/doubon/archive/2005/01/18/258314.aspx

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