Transparent control over PictureBox

by

The Label control supports transparency well. It is just that the designer won’t let you place the label correctly. The PictureBox control is not a container control so the Form becomes the parent of the label. So you see the form’s background.

It is easy to fix by adding a bit of code to the form constructor. You’ll need to change the label’s Parent property and recalculate it’s Location since it is now relative to the picture box instead of the form. Like this:

    public Form1() {
        InitializeComponent();
        var pos = this.PointToScreen(label1.Location);
        pos = pictureBox1.PointToClient(pos);
        label1.Parent = pictureBox1;
        label1.Location = pos;
        label1.BackColor = Color.Transparent;
    }

Looks like this at runtime:

enter image description here

Another approach is to solve the design-time problem. That just takes an attribute. Add a reference to System.Design and add a class to your project, paste this code:

using System.ComponentModel;
using System.Windows.Forms;
using System.Windows.Forms.Design;    // Add reference to System.Design

[Designer(typeof(ParentControlDesigner))]
class PictureContainer : PictureBox {}

More Related Contents:

  1. Word wrap for a label in Windows Forms
  2. How to justify text in a label
  3. Enter “&” symbol into a text Label in Windows Forms?
  4. How can a Label control display Japanese characters properly when the Font used doesn’t support this language?
  5. Multiple colors in a C# .NET label
  6. Capturing mouse/keyboard events outside of form (app running in background)
  7. C# vertical label in a Windows Forms
  8. Transparent background on winforms?
  9. Using custom fonts on a Label on Winforms
  10. How to change ListBox selection background color?
  11. How can I wrap text in a label using WPF?
  12. Setting the Style property of a WPF Label in code?
  13. C# Change A Button’s Background Color
  14. Resize text size of a label when the text gets longer than the label size?
  15. How do I change the full background color of the console window in C#?
  16. Make a form’s background transparent
  17. How to set background of a datagrid cell during AutoGeneratingColumn event depending on its value?
  18. How to remove time portion of date in C# in DateTime object only?
  19. Why always close Database connection?
  20. How to use JWT in MVC application for authentication and authorization?
  21. How do I get my C# program to sleep for 50 msec?
  22. Easiest way to read from a URL into a string in .NET
  23. Performance of calling delegates vs methods
  24. Why must we define both == and != in C#?
  25. DataTable to JSON [duplicate]
  26. How to get the most common value in an Int array? (C#)
  27. C# Empty Statement
  28. Entity Framework – Eager loading of subclass related objects
  29. How do I rotate a Quaternion with 2nd Quaternion on its local or world axes without using transform.Rotate?
  30. How to create own dynamic type or dynamic object in C#?

Leave a Comment