Question

vb.net中如何使背景图片上的lable控件透明？

如图所示，lable的backcolor属性已经调到Transparent，但还是无法实现透明效果

Answer 1

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Label1.BackColor = System.Drawing.Color.Transparent
End Sub
没问题哦。。

Answer 2

GDI+画法
Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
Dim g As Graphics = PictureBox1.CreateGraphics
g.DrawString("hahahaha", New Font("微软雅黑", 9), Brushes.Black, 5, 5)
End Sub

在PictureBox上用PictureBox1.CreateGraphics
在窗体上用Me.CreateGraphics

还可以是参考资料中的方法

Answer 3

用Draw的方式，例如：
private void FrmTest_Paint(object sender, PaintEventArgs e)
{
Label L;
L = lblItemName;
L.Visible = false;
e.Graphics.DrawString(L.Text, L.Font, new SolidBrush(L.ForeColor), L.Left, L.Top);
}

Answer 4

把label的BackColor设置为‘Transparent’

Answer 5

Me.SetStyle(ControlStyles.SupportsTransparentBackColor, True)
Me.BackColor = Color.FromArgb(0, Color.White)