C# winform 报错：The size of the class is less than 1 byte and therefore cannot be read

忒可君上位机软件开发

于 2024-10-09 08:31:05 发布

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System.Exception
HResult=0x80131500
Message=The size of the class is less than 1 byte and therefore cannot be read
Source=S7.Net
StackTrace:
at S7.Net.Plc.ReadClass(Object sourceClass, Int32 db, Int32 startByteAdr) in
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)