I get an exception when I want to copy a table on a flowchart (at the invocation "FlowChart.CopyToClip(false)").
The message is something like "Value must not be NULL. Parameter name: encoder".

The version of FlowChart.NET.dll is 4.03.30382.

The exception comes on all our computers except one.

The table.cells contain bitmaps, probably it has to do something with these bitmaps.


Here the whole message:

System.ArgumentNullException was unhandled by user code
  Message="Der Wert darf nicht NULL sein.\r\nParametername: encoder"
  Source="System.Drawing"
  ParamName="encoder"
  StackTrace:
      bei System.Drawing.Image.Save(Stream stream, ImageCodecInfo encoder, EncoderParameters encoderParams)
      bei System.Drawing.Image.Save(Stream stream, ImageFormat format)
      bei MindFusion.FlowChartX.PersistContext.x71837b09bd4ff057(Image xe058541ca798c059)
      bei MindFusion.FlowChartX.Table.Cell.saveTo(BinaryWriter writer, PersistContext ctx)
      bei MindFusion.FlowChartX.PersistContext.x6f5e7f1be49a7757(IPersists x7fe163017f879b6c)
      bei MindFusion.FlowChartX.PersistContext.x1f24e1c604d36df0()
      bei MindFusion.FlowChartX.FlowChart.SaveToStream(Stream stream, Boolean clearDirty)
      bei MindFusion.FlowChartX.FlowChart.CopyToClipboard(Boolean copy, Boolean groups)
      bei MindFusion.FlowChartX.FlowChart.CopyToClipboard(Boolean copy)
      bei DrHornecker.Fabrikilo.frmWorkflowDesigner.tsmiCopy_Click(Object sender, EventArgs e) in c:\Projects\fabrik\Clients\Designer\WorkflowDesigner\frmWorkflowDesigner.cs:Zeil
e 2546.
      bei System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
      bei System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
      bei System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
      bei System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
      bei System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
      bei System.Windows.Forms.ToolStripMenuItem.ProcessCmdKey(Message& m, Keys keyData)
      bei System.Windows.Forms.ToolStripManager.ProcessShortcut(Message& m, Keys shortcut)
      bei System.Windows.Forms.ToolStripManager.ProcessCmdKey(Message& m, Keys keyData)
      bei System.Windows.Forms.ContainerControl.ProcessCmdKey(Message& msg, Keys keyData)
      bei System.Windows.Forms.Form.ProcessCmdKey(Message& msg, Keys keyData)
      bei System.Windows.Forms.Control.ProcessCmdKey(Message& msg, Keys keyData)
      bei System.Windows.Forms.Control.ProcessCmdKey(Message& msg, Keys keyData)
      bei System.Windows.Forms.ContainerControl.ProcessCmdKey(Message& msg, Keys keyData)
      bei System.Windows.Forms.Form.ProcessCmdKey(Message& msg, Keys keyData)
      bei System.Windows.Forms.Control.ProcessCmdKey(Message& msg, Keys keyData)
      bei System.Windows.Forms.Control.PreProcessMessage(Message& msg)
      bei System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)
      bei System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)


Kurt