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SubProject/FPJ0000/GantChart.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace FPJ0000
+{
+    public partial class GantChart : Control
+    {
+        public GantChart()
+        {
+            InitializeComponent();
+
+            // Set Optimized Double Buffer to reduce flickering
+            this.SetStyle(ControlStyles.UserPaint, true);
+            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
+            this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
+            this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
+
+            // Redraw when resized
+            this.SetStyle(ControlStyles.ResizeRedraw, true);
+            this.Resize += arLabel_Resize;
+
+        }
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            //base.OnPaint(e);
+
+            //Set Optimized Double Buffer to reduce flickering
+            e.Graphics.CompositingQuality = CompositingQuality.HighQuality;
+            e.Graphics.InterpolationMode = InterpolationMode.High;
+            e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
+
+            e.Graphics.FillRectangle(new SolidBrush(this.BackColor), DisplayRectangle);
+        }
+
+        void arLabel_Resize(object sender, EventArgs e)
+        {
+            Invalidate();
+        }
+    }
+}