Refactoring the structure, upgrading to .NET 6.0/7.0/8.0

Indicators/Charts/ATR_chart.cs

@@ -0,0 +1,32 @@
+using System.Drawing;
+using TradingPlatform.BusinessLayer;
+namespace QuanTAlib;
+
+public class ATR_chart : QuanTAlib_Indicator {
+    #region Parameters
+
+    [InputParameter("Smoothing period", 0, 1, 999, 1, 1)]
+    private readonly int Period = 10;
+
+    #endregion Parameters
+
+    private ATR_Series indicator;
+
+    public ATR_chart()
+    {
+        this.SeparateWindow = true;
+        this.Name = "ATR - Average True Range";
+        this.Description = "Average True Range description";
+        this.AddLineSeries("ATR", Color.RoyalBlue, 3, LineStyle.Solid);
+    }
+
+	  protected override void OnInit() { base.OnInit();
+		  indicator = new(source: bars, period: Period, useNaN: false);
+    }
+
+	protected override void OnUpdate(UpdateArgs args) {
+		base.OnUpdate(args);
+		this.SetValue(indicator[^1].v, lineIndex: 0);
+	}
+
+}