[英]Draw a border around GroupBox C#
該站點上的其他解決方案對我而言不起作用,因此我試圖找出我做錯了什么:
這是WinForm App
private void dk_buff_box_Paint(object sender, PaintEventArgs e)
{
Console.WriteLine("INSIDE!!");
ControlPaint.DrawBorder(e.Graphics, this.ClientRectangle, Color.Red, ButtonBorderStyle.Solid);
GroupBox box = sender as GroupBox;
DrawGroupBox(box, e.Graphics, Color.Red, Color.Black);
}
private void DrawGroupBox(GroupBox box, Graphics g, Color textColor, Color borderColor)
{
if (box != null)
{
Brush textBrush = new SolidBrush(textColor);
Brush borderBrush = new SolidBrush(borderColor);
Pen borderPen = new Pen(borderBrush);
SizeF strSize = g.MeasureString(box.Text, box.Font);
Rectangle rect = new Rectangle(box.ClientRectangle.X,
box.ClientRectangle.Y + (int)(strSize.Height / 2),
box.ClientRectangle.Width - 1,
box.ClientRectangle.Height - (int)(strSize.Height / 2) - 1);
// Clear text and border
g.Clear(this.BackColor);
// Draw text
g.DrawString(box.Text, box.Font, textBrush, box.Padding.Left, 0);
// Drawing Border
//Left
g.DrawLine(borderPen, rect.Location, new Point(rect.X, rect.Y + rect.Height));
//Right
g.DrawLine(borderPen, new Point(rect.X + rect.Width, rect.Y), new Point(rect.X + rect.Width, rect.Y + rect.Height));
//Bottom
g.DrawLine(borderPen, new Point(rect.X, rect.Y + rect.Height), new Point(rect.X + rect.Width, rect.Y + rect.Height));
//Top1
g.DrawLine(borderPen, new Point(rect.X, rect.Y), new Point(rect.X + box.Padding.Left, rect.Y));
//Top2
g.DrawLine(borderPen, new Point(rect.X + box.Padding.Left + (int)(strSize.Width), rect.Y), new Point(rect.X + rect.Width, rect.Y));
}
}
此代碼永遠不會觸發“ INSIDE !!” 到我的控制台輸出,groupbox周圍的邊框(稱為dk_buff_box)始終為灰色且非常淺。 (我認為這是默認設置?)
我需要怎么做才能使邊框變色? 我有幾個可以一起使用的.cs文件(控件)。主要的.cs文件是form1.cs。 上面的代碼在一個名為darkknightinfo.cs的單獨的.cs文件中
代碼應該在主表單上嗎? 還是應該在具有實際分組框的.cs文件上?
我需要怎么做才能使_Paint()正確激活並運行代碼以更改組框邊框顏色?
如果要制作winForm應用程序,則必須以編程方式打開控制台,而不能僅通過Console.WriteLine
打開它。 您還使用PaintEventArgs
,其用於(顧名思義)Paint,位圖等。
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