Hi Mark,

One thing I have discovered is that if the timer in the toolbox is used on a form that is not visible it most often will not fire. Instead I have resorted to the system timer which works all the time. System.threading.timer

Perhaps that timer would work instead.

John



>Hi,
>
>I'm a VFP guy, just getting a handle on C#.
>
>I have a Winform, containing some custom controls (assemblies of buttons, labels and text boxes).
>
>I have an event being created (when a telephone call is received) and at that time I change some text on one of the custom controls.
>
>So far, so good - all works well.
>
>Now, when the phone rings, I want the line status text on my custom control to flash 'Ringing' rather than just display the word. So, I have added a timer that runs every second (when enabled) and changes the ForeColor of the status label to give a flashing effect.
>
>Except - it doesn't flash.
>
>I think it has something to do with threads. The fact that the timer on the custom control is enabled from an event handler seems to inhibit it's function somehow.
>
>If I set the timer to enabled at design time, then the text flashes from the start, proving that my flash code is OK.
>
>Any suggestions greatfully received.