C# groupbox 如何實(shí)現(xiàn)透明背景

c#
小樊
130
2024-07-13 23:06:30

要實(shí)現(xiàn)C#中GroupBox的透明背景，可以通過(guò)以下步驟實(shí)現(xiàn)：

  1. 創(chuàng)建一個(gè)自定義的GroupBox控件，繼承自GroupBox控件：
public class TransparentGroupBox : GroupBox
{
    public TransparentGroupBox()
    {
        SetStyle(ControlStyles.SupportsTransparentBackColor, true);
        BackColor = Color.Transparent;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        using (SolidBrush brush = new SolidBrush(this.ForeColor))
        {
            e.Graphics.DrawString(this.Text, this.Font, brush, new Point(10, 1));
        }
    }
}
  1. 在窗體中使用自定義的TransparentGroupBox控件，設(shè)置其背景顏色為透明：
TransparentGroupBox transparentGroupBox1 = new TransparentGroupBox();
transparentGroupBox1.Text = "Transparent GroupBox";
transparentGroupBox1.Location = new Point(50, 50);
transparentGroupBox1.Size = new Size(200, 100);
this.Controls.Add(transparentGroupBox1);

通過(guò)以上步驟，就可以實(shí)現(xiàn)C#中GroupBox控件的透明背景效果。

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