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Bug 681

Summary: Memory leak disposing & recreating empty Chart
Product: .NET TeeChart Reporter: christopher ireland <chris>
Component: Direct2DAssignee: Steema Issue Manager <issuemanager>
Status: RESOLVED FIXED    
Severity: normal    
Priority: ---    
Version: TeeChart.NET 2014 4.1.2014.02060   
Target Milestone: ---   
Hardware: PC   
OS: Windows   
Chart Series: --- Delphi / C++ Builder RAD IDE Version:

Description christopher ireland 2014-03-28 07:27:27 EDT 
The following code leaks memory:

      TChart tChart = null;
      Graphics3DDirect2D D2D = null;
      protected virtual void CreateCharts()
      {
         tChart.Dock = DockStyle.Fill;
         tChart.Panel.Gradient.Visible = false;
         tChart.Panel.Color = Color.Black;


         tChart.Panel.Gradient.Visible = false;
         tChart.Walls.Visible = false;
         tChart.Axes.Left.Grid.UseStyling = false;
         tChart.Axes.Bottom.Grid.UseStyling = false;
         // comment below line for gdi 
         setD2D(tChart);
         //tChart.Series.Add(new FastLine());
         //tChart.Series[0].FillSampleValues(500);
      }
      
      private void setD2D(TChart chart)
      {
         D2D = new Graphics3DDirect2D(chart.Chart);
         D2D.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
         D2D.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
         chart.Graphics3D = D2D;
         chart.Graphics3D.BufferStyle = BufferStyle.None;
      }
      void Create()
      {
         tChart = new TChart();
         tChart.Dock = DockStyle.Fill;
         CreateCharts();
         panel1.Controls.Add(tChart);
      }


      void CloseChart()
      {
         panel1.Controls.Remove(tChart);
         if (tChart != null)
         {
            tChart.Dispose();
            GC.Collect();
         }
      }

      private void timer1_Tick(object sender, EventArgs e)
      {
         CloseChart();
         Create();
      }