在Picturebox上添加一个标签 [英] Add a Label over Picturebox

问题描述

我正在试图在我的picturebox上写一些文字，所以我认为最简单和最好的做法是在它上面绘制标签。这是我做的：

I am trying to write some text over my picturebox so I thought the easiest and best thing to do is draw label over it. This is what I did:

PB = new PictureBox();
PB.Image = Properties.Resources.Image; 
PB.BackColor = Color.Transparent;
PB.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
PB.Size = new System.Drawing.Size(120, 30);
PB.Location = new System.Drawing.Point(100, 100);
lblPB.Parent = PB;
lblPB.BackColor = Color.Transparent;
lblPB.Text = "Text";
Controls.AddRange(new System.Windows.Forms.Control[] { this.PB });

我没有使用PictureBox的空白页面。我做错了什么？

I get blank page with no PictureBoxes. What am I doing wrong?

推荐答案

尽管所有这些答案都有效，但您应该考虑选择更清晰的解决方案。您可改为使用图片框的 Paint 事件：
$ b

While all these answers work, you should consider opting for a cleaner solution. You can instead use the picturebox's Paint event:

PB = new PictureBox();
PB.Paint += new PaintEventHandler((sender, e) =>
{
    e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
    e.Graphics.DrawString("Text", Font, Brushes.Black, 0, 0);
});
//... rest of your code

编辑以文本为中心：

Edit To draw the text centered:

PB.Paint += new PaintEventHandler((sender, e) =>
{
    e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;

    string text = "Text";

    SizeF textSize = e.Graphics.MeasureString(text, Font);
    PointF locationToDraw = new PointF();
    locationToDraw.X = (PB.Width / 2) - (textSize.Width / 2);
    locationToDraw.Y = (PB.Height / 2) - (textSize.Height / 2);

    e.Graphics.DrawString(text, Font, Brushes.Black, locationToDraw);
});

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