How get the last text on a chart?

[Pbarrionuevo]

Hi, i have a indicator that draw on a chart one text when meet conditions. How can get the last text, with the last N bars traded?


thanks

[NinjaTrader_PaulH]

Hello Pbarrionuevo,

Thanks for your post.

Is the indicator that draws the text something you created or have access to its source code?

"How can get the last text, with the last N bars traded?" I'm not sure I understand, can you provide a screenshot the illustrates what you want to accomplish?

[Pbarrionuevo]

Yes, i sent the image.


thanks.

[NinjaTrader_PaulH]

Hello Pbarrionuevo,

Thanks for your reply.

Is the indicator that draws the text something you created or have the source code for?

[Pbarrionuevo]

No, i don't have the source code. I use this code to find it, but get an error:

foreach (DrawingTool draw in DrawObjects)
{
if (draw != null) {
if (draw.Tag.Contains("up"))
{
Log ("fond text: " + draw.Tag, LogLevel.Information);
Text texto = draw as DrawingTools.Text; // when do this, i receive this error: Default Strategy 'AlertBullBear': Error on calling 'OnBarUpdate' method on bar 0: Object reference not set to an instance of an object.
// DrawingTools.Text texto = draw as DrawingTools.Text; // and get the same error
Log ("Bars ago: " + texto.Anchor.BarsAgo, LogLevel.Information);

Log ("play the sound", LogLevel.Information);
NinjaTrader.Core.Globals.PlaySound(@"C:\Program Files (x86)\NinjaTrader 8\sounds\CompiledSuccessfully.wav");

}}

}

could it be a different type of object?

[NinjaTrader_PaulH]

Hello Pbarrionuevo,

Thanks for your reply.

Yes, I think it should be DrawingTools.Text texto as in your commented example.

Here is a similar example I have used to read text on the chart, please give this a try:

foreach (DrawingTool draw in DrawObjects.ToList())
{
if (draw is DrawingTools.Text)
{
DrawingTools.Text myText = draw as DrawingTools.Text;
Print("Tag name: "+myText.Tag+" Displayed text: "+myText.DisplayText);
}
}

Note: Print will send the text to the New>Ninjascript output window which is the recommended place to send debugging text. Excessive use of Log() can lead to performance issues.

[Pbarrionuevo]

ok, but how can get the Tag/Text from the last text?


thanks

[NinjaTrader_PaulH]

Hello Pbarrionuevo,

Thanks for your reply.

You might try checking the DrawObjects.Count and when it changes (meaning you should save it to a variable so you can compare) then perhaps that is your trigger to read.

When you process each (foreach loop) object you can save the anchor time to a variable and the next time through the list skip anything before that time, when the object is a later time then likely that is your candidate to check.

DrawingTools.Text myText = draw as DrawingTools.Text;
Print("Tag name: "+myText.Tag+" Displayed text: "+myText.DisplayText);
Print("startPrice: " + myText.Anchor.Price);
Print("startTime: " + myText.Anchor.Time);

[Pbarrionuevo]

I will try.


thanks