我使用Visual Studio 2010在C＃中编写了一个Windows窗体应用程序。它有一个包含多个页面的选项卡控件。所有页面都在Mono中正常工作，但一个页面除外，当单击时，会导致应用程序终止，并显示下面显示的错误。您可以看到页面开始绘制，然后失败。
一个注意事项：此页面上唯一不在其他项目上的项目是FlowLayoutPanel和ProgressBar。没有其他页面上没有的字体。我在下面看到了ToolStripMenuItem mentioned，但页面上没有ToolStrip。
任何帮助将不胜感激。感谢。
System.ArgumentException: A null reference or invalid value was found [GDI+ status: InvalidParameter] at System.Drawing.GDIPlus.CheckStatus (Status status) [0x0009b] in /root/mono-3.2.1/mcs/class/System.Drawing/System.Drawing/gdipFunctions.cs:220 at System.Drawing.Graphics.GdipMeasureString (IntPtr graphics, System.String text, System.Drawing.Font font, System.Drawing.RectangleF& layoutRect, IntPtr stringFormat) [0x00053] in /root/mono-3.2.1/mcs/class/System.Drawing/System.Drawing/Graphics.cs:1953 at System.Drawing.Graphics.MeasureString (System.String text, System.Drawing.Font font, Int32 width, System.Drawing.StringFormat format) [0x00031] in /root/mono-3.2.1/mcs/class/System.Drawing/System.Drawing/Graphics.cs:1986 at (wrapper remoting-invoke-with-check) System.Drawing.Graphics:MeasureString (string,System.Drawing.Font,int,System.Drawing.StringFormat) at System.Windows.Forms.TextRenderer.MeasureTextInternal (IDeviceContext dc, System.String text, System.Drawing.Font font, Size proposedSize, TextFormatFlags flags, Boolean useMeasureString) [0x000eb] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/TextRenderer.cs:263 at System.Windows.Forms.TextRenderer.MeasureText (System.String text, System.Drawing.Font font, Size proposedSize, TextFormatFlags flags) [0x00000] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/TextRenderer.cs:117 at System.Windows.Forms.ToolStripItem.OnParentChanged (System.Windows.Forms.ToolStrip oldParent, System.Windows.Forms.ToolStrip newParent) [0x00000] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ToolStripItem.cs:1202 at System.Windows.Forms.ToolStripItem.set_Parent (System.Windows.Forms.ToolStrip value) [0x0001a] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ToolStripItem.cs:853 at (wrapper remoting-invoke-with-check) System.Windows.Forms.ToolStripItem:set_Parent (System.Windows.Forms.ToolStrip) at System.Windows.Forms.ToolStripItemCollection.Remove (System.Windows.Forms.ToolStripItem value) [0x00035] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ToolStripItemCollection.cs:273 at System.Windows.Forms.ToolStripItem.Dispose (Boolean disposing) [0x0003b] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ToolStripItem.cs:962 at System.Windows.Forms.ToolStripDropDownItem.Dispose (Boolean disposing) [0x00089] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ToolStripDropDownItem.cs:185 at System.Windows.Forms.ToolStripMenuItem.Dispose (Boolean disposing) [0x00000] in /root/mono-3.2.1/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ToolStripMenuItem.cs:221 at System.ComponentModel.Component.Finalize () [0x00000] in /root/mono-3.2.1/mcs/class/System/System.ComponentModel/Component.cs:100