On each new bar I check for a condition and if true I start a new line
also on each new bar I extend any previous lines

protected override void OnBarUpdate()
{
if (CurrentBar != previousBar)
{
if (somecondition)
{
DrawLine(tag, true, 0, price, 0, price, Color.Green, DashStyle.Dash, 3);
}

foreach (IDrawObject o in DrawObjects)
{
ILine line = o as ILine;
if (line != null) line.EndBarsAgo = 0;
// if (line != null) line.EndTime = Time[0];
}
.
.
.
previousBar = CurrentBar; // previousBar is an instance class variable
}
}

This works up to a certain point but then after that point the lines stop extending.
Is this a bug in Ninja Trader? Do I need to set line.EndTime = Time[0] instead of or in addition to line.EndBarsAgo = 0?

Thanks

trader789 

This works up to a certain point but then after that point the lines stop extending. Is this a bug in Ninja Trader? Do I need to set line.EndTime = Time[0] instead of or in addition to line.EndBarsAgo = 0? Thanks

Any reason why you can't use 'DrawRay' ? Only need to draw each one once then.