Set BackGround Color of Textbox to Transparent - vb.net

Question

I am trying to set the background color of textbox to transparent, to blend with my backcolor of my form.
I have tried the following below.
TextBox1.BackColor = Color.Transparent 'This doesn't work it stays white'
Is there something I am missing?

Answer 1

When I set TextBox.BackColor to Color.Transparent, it throws System.ArgumentException. I got this message :
Unvalid property value, The control does not support transparent colors background.

Answer 2

Hope am not late to the party, but this actually works for me. First create a class for the panel as below
Partial Public Class iPanel
Inherits Panel
Public Sub New()
SetStyle(ControlStyles.SupportsTransparentBackColor Or ControlStyles.OptimizedDoubleBuffer Or ControlStyles.AllPaintingInWmPaint Or ControlStyles.ResizeRedraw Or ControlStyles.UserPaint, True)
BackColor = Color.Transparent
End Sub
End Class
Then create a RichTextBox (Instead of a Textbox) as below
Protected Overrides ReadOnly Property CreateParams() As CreateParams
Get
Dim CP As CreateParams = MyBase.CreateParams
CP.ExStyle = CP.ExStyle Or &H20
Return CP
End Get
End Property
Now compile the code and add the iRichTextBox inside the panel. Works for me

Answer 3

Private Sub TextBox1_Paint(sender As Object, e As PaintEventArgs) Handles TextBox1.Paint
TextBox1.ForeColor = Color.White
TextBox1.BackColor = Color.Transparent
End Sub
Instead of doing the first one, You can try this. Just put your code in Form Load
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox1.BackColor = color.(color of your Choice, same color of your background)
TextBox1.ForeColor = color.White
End Sub
As simple as that, it works for me

Answer 4

As far as I know textbox does not support transparent color property. But if you set the back color of the textbox to the same color as of its background component, still it can be considered as transparent.
How to do that - You can get the color name of the background component(in your case it is the form) and pass that name to the component which you want to be transparent.
Dim lname As String = Me.BackColor.ToString
Dim name As String = lname.Substring(7, lname.Length - 8)
txtbox1.BackColor = System.Drawing.Color.FromName(name)
Explanation -
The first line in the code gets you the name of the color, but there's a rub, it gets the name something like this - Color [Dark Orange] and we need only the name of the color i.e Dark Orange.
Thus the second line is to get the exact color name by removing this - Color [] part
And the last line to set that color same as of the background component color.
Hope it works, still have problem let me know...