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GoTo Bar ChartControl
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GoTo Bar ChartControl

  #1 (permalink)
Elite Member
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GoTo Bar ChartControl

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 ?

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  #2 (permalink)
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  #3 (permalink)
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int i = Bars.GetBar(datetime);

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  #4 (permalink)
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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


Last edited by decs0057; April 22nd, 2010 at 09:43 AM.
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Download courtesy @decs0057:

https://futures.io/download/vip_elite_circle/1277-download.html?view

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Pure Code



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.

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