How to DrawText from custom event (like from Timer)?

[ttodua]

In State.Dataloaded I have:

              
ChartControl.Dispatcher.InvokeAsync(() =>            
{
    timer = new System.Windows.Threading.DispatcherTimer { Interval = new TimeSpan(0, 0, 1), IsEnabled = true };
    timer.Tick += OnTimerTick;
});

and then

private void OnTimerTick(object sender, EventArgs e)
{
    ChartControl.Dispatcher.InvokeAsync((Action)(() =>
    {
       drawMy();
    }));
    drawMy();
}


private void drawMy()
{
    Draw.TextFixed(this, "tag1", "hi", TextPosition.Center, TextColor, textFont, TextColor, BackColor, 50, DashStyleHelper.Solid, 0, false, "");
    Print("hi");
}

It prints "hi", but doesnt create drawing. Why? what to do?

only when i click on chart or make some action on chart, only after that it does.

[NinjaTrader_ChrisL]

Hello TazoTodua,

Thank you for your post.

Try calling ForceRefresh() from that method. This will queue the chart to perform the OnRender() method. That is why the draw object will not show up until you move something on that chart, that action is causing OnRender() to be called. This event used to determine an OnRender call is checked every 250 milliseconds.

I look forward to hearing of your results.

[ttodua]

Wow, worked, thanks!