Trouble with BackBrushes colors

[cre8able]

I'm using the following code to change the background color based on meeting the conditions listed

                Brush shortBrush = new SolidColorBrush(Color.FromArgb(100, 79, 19, 62));
            shortBrush.Freeze();
            Brush longBrush = new SolidColorBrush(Color.FromArgb(100, 22, 64, 24));
            longBrush.Freeze();

            if((ema50A[0] < ema50B[0]) && (ema50B[0] < ema200A[0]) && (ema200A[0] < ema200B[0]))
            {
                //BackBrushes[0] = Brushes.Pink;
                 BackBrushes[0] = shortBrush;
            }
            else if((ema50A[0] > ema50B[0]) && (ema50B[0] > ema200A[0]) && (ema200A[0] > ema200B[0]))
            {
                //BackBrushes[0] = Brushes.Lime;
                BackBrushes[0] = longBrush;
            }
&#8203;
&#8203; 

When I use the standard brush colors it work fine but is a little more colorful than I want



When I use the new RGB brushes, it only pick up the 2nd color



what am I doing wrong?

[cre8able]

Oops.

I was running the brush code in OnBarUpdate and creating a new brush each bar...

moved to OnStateChange. Can someone confirm thats where is should be?

thank you

[NinjaTrader_BrandonH]

Hello cre8able,

Thanks for your post.

I understand that you are trying to change the background colors of the chart panel when a certain condition occurs by using BackBrushes.

To change the background colors of the chart when a certain condition occurs, you could create your conditions in OnBarUpdate() and call BackBrushes[int barsAgo] within the condition in OnBarUpdate().

If you are referring to using custom brushes to set the background color when calling BackBrushes[int barsAgo], you could create a private class level Brush variable and then instantiate the Brush variable in OnStateChange(). That Brush variable could then be used when setting a value to BackBrushes[int barsAgo].

For example:

//class level variables
private Brush myBrush1;
private Brush myBrush2;

//State.Configure
myBrush1 = new SolidColorBrush(Color.FromRgb(56, 120, 153));
myBrush1.Freeze();

myBrush2 = new SolidColorBrush(Color.FromRgb(99, 10, 55));
myBrush2.Freeze();

//OnBarUpdate()
if (Close[0] > Open[0])
BackBrushes[0] = myBrush1;

if (Close[0] < Open[0])
BackBrushes[0] = myBrush2;

See this help guide page for more information about creating custom brushes: https://ninjatrader.com/support/help...gcustombrushes

See this help guide page for more information about BackBrushes: https://ninjatrader.com/support/help...ackbrushes.htm

[cre8able]

Thanks Brandon

when I change to instantiating on state change it worked fine