Chart scroll issue: jump to end instead to scroll bar-by-bar

[fx.practic]

This is sequel of this thread.

I made indicator with button on toolbar.
Button intend to rewind chart to the last bar.
Keyboard event Key.Right used for this.

But, I found out, that after rewinding approximately 320 bars, chart become dark and jump to the very last bar. Here is video: http://take.ms/MzymA

What can be the reason, and how to preventing jumping to the end of chart?
How to let cart to scroll bar-by-bar?
Any idea appreciated.

[NinjaTrader_Jesse]

Hello,

Thank you for the post.

I am currently reviewing the sample you provided, once I have further reviewed your logic, I will reply back here.

I look forward to being of further assistance.

[fx.practic]

Thank You, Jesse.

I found decision, that work for me: SendKeys.Flush(); clear keyboard buffer.
I looks ugly because of mixing WPF and Windows.Forms approaches.
So, I will appreciate if You can point me to more correct way.

[fx.practic]

Didn't You find any ways to clear keyboard buffer using WPF methods only?

[NinjaTrader_Jesse]

Hello,

Thank you for the reply.

No, I had not, I am unaware of any WPF specific solutions for the purpose of flushing the keyboard buffer. Generally, we don't suggest mimicking the keyboard programmatically from NinjaScript as it can cause complications. If you have found a solution that resolves the initial concern you had, I would likely suggest using that after testing and making sure it resolves the initial concern.

Please let me know if I may be of further assistance.

[fx.practic]

Thank You for clear answer.