GoTo Bar ChartControl

April 21st, 2010, 05:37 PM

Is there a method GoToBar with argument DateTime which jumps to the bar and scrolls it to the visible canvas if it is outside ?
There is a method GoTo in ChartControl but you can't call it because it is internal.
Is it possible with GetXByBarIdx ?

April 22nd, 2010, 12:34 AM

int i = Bars.GetBar(datetime);

April 22nd, 2010, 06:14 AM

now i have the index, if index is outside of visible range how can i scroll that bar becomes visible

I tried

int totalBars = indicator.ChartControl.Bars[0].Count;
DateTime dt = goToDate;
// int indicator.ChartControl.AutoScroll;
int barsIndex = indicator.Bars.GetBar(dt);
int firstBarPainted = chartCtrl.FirstBarPainted;
IBar firstBar = indicator.Bars.Get( firstBarPainted );
int lastBarPainted = chartCtrl.LastBarPainted;
IBar lastBar = indicator.Bars.Get( lastBarPainted );
int visibleBars = lastBarPainted - firstBarPainted;
if( barsIndex >= firstBarPainted && barsIndex < lastBarPainted )
return;

int xByBarIndex = chartCtrl.GetXByBarIdx( barsIndex );

HScrollProperties hsp = chartCtrl.ChartPanel.HorizontalScroll;
int scrollValue = (int)((100 * barsIndex) / totalBars);
hsp.Enabled = true;
hsp.Value = scrollValue;

but scrollbar doesn't move

October 7th, 2012, 05:50 PM

Download courtesy @decs0057:

Download: GoTo Bar ChartControl

There is an internal method GoTo in ChartControl class from NinjaTrader. With attached code you can use method to make bar at specified date visible on chart. This is a solution for thread https://nexusfi.com/ninjatrader-programming/3579-go …

decs0057

Mike

February 17th, 2015, 01:46 PM

Big Mike

Download courtesy @decs0057:

Download: GoTo Bar ChartControl

There is an internal method GoTo in ChartControl class from NinjaTrader. With attached code you can use method to make bar at specified date visible on chart. This is a solution for thread https://nexusfi.com/ninjatrader-programming/3579-go …

decs0057

Mike

First thank you Mike for the link and I am posting now the pure code how I implemented it in my indicator and it works perfect:

Code

// execute the internal method GoTo
dtDateTime = <the DateTime value>;
BindingFlags bfObject = BindingFlags.Instance | BindingFlags.NonPublic;
MethodInfo methodGoTo = typeof(ChartControl).GetMethod("GoTo", bfObject);
methodGoTo.Invoke(ChartControl, new Object [] { dtDateTime });

In the variable dtDateTime you put the DateTime value from the beginning of the area you want to scroll to.

GoTo Bar ChartControl

Discussion in NinjaTrader

GoTo Bar ChartControl