windows windows应用程序中Group Box的边框颜色
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Border color of Group Box in windows application
提问by Mahi
How can I change the border color of group box control in windows application
如何在windows应用程序中更改分组框控件的边框颜色
回答by WhatsThePoint
The windows groupbox doesnt have a border color property, so this means you will have to create a new class inheriting from groupbox and create your own border color property. here is the code you will need;
windows groupbox 没有边框颜色属性，因此这意味着您必须创建一个继承自 groupbox 的新类并创建自己的边框颜色属性。这是您需要的代码；
public class MyGroupBox : GroupBox
{
private Color _borderColor = Color.Black;
public Color BorderColor
{
get { return this._borderColor; }
set { this._borderColor = value; }
}
protected override void OnPaint(PaintEventArgs e)
{
//get the text size in groupbox
Size tSize = TextRenderer.MeasureText(this.Text, this.Font);
Rectangle borderRect = e.ClipRectangle;
borderRect.Y = (borderRect.Y + (tSize.Height / 2));
borderRect.Height = (borderRect.Height - (tSize.Height / 2));
ControlPaint.DrawBorder(e.Graphics, borderRect, this._borderColor, ButtonBorderStyle.Solid);
Rectangle textRect = e.ClipRectangle;
textRect.X = (textRect.X + 6);
textRect.Width = tSize.Width;
textRect.Height = tSize.Height;
e.Graphics.FillRectangle(new SolidBrush(this.BackColor), textRect);
e.Graphics.DrawString(this.Text, this.Font, new SolidBrush(this.ForeColor), textRect);
}
}
after adding this code to your project click build solution, then MyGroupBoxwill appear in your toolbox to be able to use
将此代码添加到您的项目后单击构建解决方案，然后MyGroupBox将出现在您的工具箱中以能够使用
