Question

我目前正在使用DynamicDataDisplay在用户界面上显示频谱，它运行良好但存在大量内存泄漏（大约1-2MB /周期）。当我使用新图表更新它时，它似乎不会释放所有内存。有没有其他人遇到过这个问题？我将如何解决它？提前致谢。请参阅下面的代码

Dim P1Chart As New Microsoft.Research.DynamicDataDisplay.ChartPlotter()
Dim P1ChartDateTime As New Windows.Controls.Label()

…………………….

‘First remove old line graph from chart
ClearSpectrum(iTabIndex)

‘Load arrays with new spectral data
For SpectCtr = 0 To ScanElements
   If Spectrum = ScanType.Absorbance Then
      x(SpectCtr) = SpectCtr * 0.5 + 800.0 ‘Convert to wavelength if absorbance spectra
   Else
      x(SpectCtr) = SpectCtr
   End If

   y(SpectCtr) = sr.ReadLine()
Next

Dim xDataSource = AsXDataSource(x)
Dim yDataSource = AsYDataSource(y)

Dim xyDataSource As New CompositeDataSource(xDataSource, yDataSource)

Select Case StreamNumber
Case 1
   P1Chart.AddLineGraph(xyDataSource, Colors.Red, 1, “Probe A”)
   P1ChartDateTime.Content = String.Format(“Time: {0}, X-Axis: {1}”, FileSaveTime, xAxisTitle)
Case 2
   P2Chart.AddLineGraph(xyDataSource, Colors.Red, 1, “Probe B”)
   P2ChartDateTime.Content = String.Format(“Time: {0}, X-Axis: {1}”, FileSaveTime, xAxisTitle)
End Select

………

Private Sub ClearSpectrum(ByVal iTabIndex As Integer)
Dim nIndex As Integer

Select Case iTabIndex
Case 1
   For Each child1 As IPlotterElement In P1Chart.Children
      If TypeOf child1 Is Microsoft.Research.DynamicDataDisplay.LineGraph Then
         RemoveList.Add(child1)
      End If
   Next

For Each child1 In RemoveList
    P1Chart.Children.Remove(child1)
Next
……………..
RemoveList.Clear()

使用dynamicdatadisplay vb.net进行内存泄漏

0 个答案: