I am working on a C# - Winforms application and attempting to set the background colour of a read-only text box like so...
txtMyBox.BackColor = Color.FromNam
A bit late - but eventually helps this someone who - like me - found this page according to the OPs question:
I got this error when Setting a Winforms Splitter background color which was generated by a
Color.FromArgb(0xC9,0xD9,0xEB);
The solution was to generate the Color value instead with the following helper method:
ColorTranslator.FromHtml("#C9D9EB")
This avoids generating a transparency Information.