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Forums » Elegant Ribbon Tech Support » Exceptions in mouseover events in forms that run on threads other than the main GUI thread Collapse All
Subject Author Date
Alexander Kaay May 14, 2011 - 7:43 AM

Greetings--


Elegant Ribbon 4.1 produces exceptions when mousing over the ribbon in a multithreaded GUI application. This seems to be related to the bug from last year that affected multithreaded GUI instances (please refer to "Elegant.UI exceptions in forms that run on threads other than the main application thread"):


http://www.prof-uis.com/elegant-ribbon/tech-support/forum/elegantui-exceptions-in-forms-that-run-on-threads-other-than-the-main-application-thread-67926.aspx#@lt;/p>

...and subsequent posts. This is not exactly in the same place, but is also related to mouseover events. Please help... this happens frequently enough to make the application unusable.


-Alex


 


 


************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
   at Elegant.Ui.Control.set_ControlAffectedByMouse(Control value)
   at Elegant.Ui.Control.OnMouseEnter(Control control, EventArgs e)
   at Elegant.Ui.Control.OnMouseEnter(EventArgs e)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at Elegant.Ui.Control.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.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 (RTMRel.030319-0100)
    CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
AutoMotion5
    Assembly Version: 5.1.4150.27034
    Win32 Version: 5.1.4150.27034
    CodeBase: file:///C:/AutoFET/AutoFET5/AutoMotion/bin/x86/Debug/AutoMotion5.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
Elegant.Ui.Ribbon
    Assembly Version: 4.1.0.0
    Win32 Version: 4.1.0.0
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Elegant.Ui.Ribbon/4.1.0.0__3a2b400713aae6e0/Elegant.Ui.Ribbon.dll
----------------------------------------
Elegant.Ui.Grid
    Assembly Version: 4.1.0.0
    Win32 Version: 4.1.0.0
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Elegant.Ui.Grid/4.1.0.0__3a2b400713aae6e0/Elegant.Ui.Grid.dll
----------------------------------------
Elegant.Ui.Common
    Assembly Version: 4.1.0.0
    Win32 Version: 4.1.0.0
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Elegant.Ui.Common/4.1.0.0__3a2b400713aae6e0/Elegant.Ui.Common.dll
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualBasic/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 (RTMRel.030319-0100)
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
abc5
    Assembly Version: 5.0.3900.19942
    Win32 Version: 
    CodeBase: file:///C:/AutoFET/AutoFET5/AutoMotion/bin/x86/Debug/abc5.DLL
----------------------------------------
Elegant.Ui.Common.Theme.Office2007Black
    Assembly Version: 4.1.0.0
    Win32 Version: 4.1.0.0
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Elegant.Ui.Common.Theme.Office2007Black/4.1.0.0__3a2b400713aae6e0/Elegant.Ui.Common.Theme.Office2007Black.dll
----------------------------------------
Accessibility
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
Microsoft.VisualBasic.Compatibility
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.30319.1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualBasic.Compatibility/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.Compatibility.dll
----------------------------------------
Elegant.Ui.Ribbon.Theme.Office2007Black
    Assembly Version: 4.1.0.0
    Win32 Version: 4.1.0.0
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Elegant.Ui.Ribbon.Theme.Office2007Black/4.1.0.0__3a2b400713aae6e0/Elegant.Ui.Ribbon.Theme.Office2007Black.dll
----------------------------------------
Microsoft.VisualBasic.PowerPacks.Vs
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.30319.1
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Microsoft.VisualBasic.PowerPacks.Vs/10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.PowerPacks.Vs.dll
----------------------------------------
RSIQDNET4
    Assembly Version: 4.1.28.0
    Win32 Version: 
    CodeBase: file:///C:/AutoFET/AutoFET5/AutoMotion/bin/x86/Debug/RSIQDNET4.DLL
----------------------------------------
Elegant.Ui.Grid.Theme.Office2007Black
    Assembly Version: 4.1.0.0
    Win32 Version: 4.1.0.0
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Elegant.Ui.Grid.Theme.Office2007Black/4.1.0.0__3a2b400713aae6e0/Elegant.Ui.Grid.Theme.Office2007Black.dll
----------------------------------------
Microsoft.DirectX.DirectInput
    Assembly Version: 1.0.2902.0
    Win32 Version: 5.04.00.2904
    CodeBase: file:///C:/WINDOWS/assembly/GAC/Microsoft.DirectX.DirectInput/1.0.2902.0__31bf3856ad364e35/Microsoft.DirectX.DirectInput.dll
----------------------------------------
System.Security
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 (RTMRel.030319-0100)
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Security/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Security.dll
----------------------------------------
System.Data.SqlXml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Data.SqlXml/v4.0_4.0.0.0__b77a5c561934e089/System.Data.SqlXml.dll
----------------------------------------
System.Design
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Design/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Design.dll
----------------------------------------
Microsoft.DirectX
    Assembly Version: 1.0.2902.0
    Win32 Version: 5.04.00.2904
    CodeBase: file:///C:/WINDOWS/assembly/GAC/Microsoft.DirectX/1.0.2902.0__31bf3856ad364e35/Microsoft.DirectX.dll
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 (RTMRel.030319-0100)
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
System.Drawing.Design
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing.Design/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.Design.dll
----------------------------------------
System.Web
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.206 built by: RTMGDR
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_32/System.Web/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Web.dll
----------------------------------------
Microsoft.VisualC
    Assembly Version: 10.0.0.0
    Win32 Version: 10.00.30319.01
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualC/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualC.dll
----------------------------------------
 

 


 
Technical Support May 18, 2011 - 1:19 PM

Could you create and send to us a a sample project that illustrates the issue? Thank you.