C#中Winfrom开发加载绑定重绘GroupBox圆角、颜色的事件
加载绑定重绘事件：groupBox1.Paint += GroupBox_Paint;
/// <summary>
/// GroupBox重绘事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void GroupBox_Paint(object sender, PaintEventArgs e)
{
if (sender != null && sender is GroupBox)
{
System.Drawing.Graphics g = e.Graphics;
GroupBox gbx = sender as GroupBox;
//重绘圆角、颜色
PaintBack(g, gbx);
}
}
/// <summary>
/// groupBox重绘_圆角方法
/// </summary>
/// <param name="g"></param>
/// <param name="gbx"></param>
/// <returns></returns>
public static Graphics PaintBack(System.Drawing.Graphics g, GroupBox gbx)
{
g.Clear(gbx.BackColor);
Color color = Color.Black;//边框颜色
Color color2 = Color.White;
Pen p = new Pen(color, 1);
int w = gbx.Width;
int h = gbx.Height;
Brush b = null;
if (gbx.Parent != null)
b = new SolidBrush(gbx.Parent.BackColor);
else
b = new SolidBrush(color);
//绘制直线
g.DrawLine(p, 3, h - 1, w - 4, h - 1); //bottom
g.DrawLine(p, 0, h - 4, 0, 12); //left
g.DrawLine(p, w - 1, h - 4, w - 1, 12); //right
g.FillRectangle(b, 0, 0, w, 8);
g.DrawLine(p, 3, 8, 10, 8); //lefg top
g.DrawLine(p, //right top
g.MeasureString(gbx.Text,
gbx.Font).Width + 8, 8, w - 4, 8);
//绘制文字
g.DrawString(gbx.Text, gbx.Font, Brushes.Blue, 10, 0); //title
//绘制弧线
g.DrawArc(p, new Rectangle(0, 8, 10, 10), 180, 90); //left top
g.DrawArc(p, new Rectangle(w - 11, 8, 10, 10), 270, 90); //right top
g.DrawArc(p, new Rectangle(0, h - 11, 10, 10), 90, 90); //left bottom
g.DrawArc(p, new Rectangle(w - 11, h - 11, 10, 10), 0, 90);//right bottom
return g;
}
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