How to set backcolor of listbox to tranpesent

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I have a listbox in WinForm C#. How do I set the backcolor of this listbox to tranpesent?

I tried

C#

private void Form2_Load(object sender, EventArgs e)
{
    listbox1.BackColor = Color.Transparent;
}

But it doesn't work!

Posted 26-Dec-15 17:59pm

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Dave Kreskowiak · Answer 1 · 2015-12-26T18:13:00

Solution 1

Transparent doesn't do what you think it does. Try reading the documentation on it.

Transparent tells the control to take on the background properties of the parent container control. It does NOT make the control really transparent. It just gives the illusion by making the control background match the properties of the container background.

Google[^]

Posted 26-Dec-15 18:13pm

Dave Kreskowiak

Comments

BillWoodruff 27-Dec-15 0:59am

In this case, the OP's code sample will throw an error because WinForm Controls do not support transparent background colors. But, the links you refer the OP will show the possible work-arounds (none of which I've ever found useful).

BillWoodruff · Answer 2 · 2015-12-26T19:03:00

I doubt this is what you want, but if you want to have the ListBox appear as a cut-out in the Form, you can set the TransparencyKey property of the Form to some Color, and set the ListBox BackColor property to the same Color.

Of course, the other ways to do this, as the links that Dave referred you to will show you, involve sub-classing the ListBox.

In my experience with Win Forms, I've never found any satisfactory results with any attempt at using transparency.