I am a long time web developer using Visual Studio. Now a client wants me to develop a WPF 3.5 application to go with the website. I am encountering an issue that I have never experienced before:
When a user doesn't input information I am used to either lblError.text.forecolor = drawing.color.red OR something like lblError.visible = true.
Neither of these work and it flags me with an error message "it is in read only mode" so it cannot be altered.
Understanding this is very trivial but I need good input on a standard, please don't laugh when you answer this! :)
Thanks in advance for the help,