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ComboboxAdv dispose error

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Replies:

56525 Feb 15,2007 06:02 PM Mar 27,2007 09:22 AM Windows Forms 3
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Tags: Tools
Julie Levy
Asked On February 15, 2007 06:02 PM

Any idea what could cause the following error? Note that the combobox is part of a user control and i am calling Dispose on the combobox in the user control dispose. I am able to look at properties on the combobox when stepping through the code, but get the following error when i call dispose:

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at Syncfusion.Windows.Forms.Tools.ComboDropDown.UpdateIsActiveState()
at Syncfusion.Windows.Forms.Tools.ComboDropDown.set_ComboInFocus(Boolean value)
at Syncfusion.Windows.Forms.Tools.ComboDropDown.OnValidated(EventArgs e)
at System.Windows.Forms.Control.PerformControlValidation(Boolean bulkValidation)


************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
Advent.MxRules.Win
Assembly Version: 1.1.0.2
Win32 Version: n/a
CodeBase: http://localhost/MxRulesWeb/WinBin/Advent.MxRules.Win.dll
----------------------------------------
System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
Advent.MxRules.Common
Assembly Version: 1.1.0.2
Win32 Version: n/a
CodeBase: http://localhost/MxRulesWeb/WinBin/Advent.MxRules.Common.DLL
----------------------------------------
Advent.MxRules.Win.Controls
Assembly Version: 1.1.0.2
Win32 Version: n/a
CodeBase: http://localhost/MxRulesWeb/WinBin/Advent.MxRules.Win.Controls.DLL
----------------------------------------
Syncfusion.Grid.Windows
Assembly Version: 4.402.0.51
Win32 Version: 4.402.0.51
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Syncfusion.Grid.Windows/4.402.0.51__3d67ed1f87d44c89/Syncfusion.Grid.Windows.dll
----------------------------------------
Syncfusion.Shared.Base
Assembly Version: 4.402.0.51
Win32 Version: 4.402.0.51
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Syncfusion.Shared.Base/4.402.0.51__3d67ed1f87d44c89/Syncfusion.Shared.Base.dll
----------------------------------------
Syncfusion.Tools.Windows
Assembly Version: 4.402.0.51
Win32 Version: 4.402.0.51
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Syncfusion.Tools.Windows/4.402.0.51__3d67ed1f87d44c89/Syncfusion.Tools.Windows.dll
----------------------------------------
Advent.MxRules.Win.Common
Assembly Version: 1.1.0.2
Win32 Version: n/a
CodeBase: http://localhost/MxRulesWeb/WinBin/Advent.MxRules.Win.Common.DLL
----------------------------------------
Accessibility
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Syncfusion.Core
Assembly Version: 4.402.0.51
Win32 Version: 4.402.0.51
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Syncfusion.Core/4.402.0.51__632609b4d040f6b4/Syncfusion.Core.dll
----------------------------------------
System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
Advent.MxRules.Resources
Assembly Version: 1.1.0.2
Win32 Version: n/a
CodeBase: http://localhost/MxRulesWeb/WinBin/Advent.MxRules.Resources.DLL
----------------------------------------
Microsoft.mshtml
Assembly Version: 7.0.3300.0
Win32 Version: 7.0.3300.0
CodeBase: file:///C:/WINDOWS/assembly/GAC/Microsoft.mshtml/7.0.3300.0__b03f5f7f11d50a3a/Microsoft.mshtml.dll
----------------------------------------
Advent.MxRules.ServiceProviders
Assembly Version: 1.1.0.2
Win32 Version: n/a
CodeBase: http://localhost/MxRulesWeb/WinBin/Advent.MxRules.ServiceProviders.DLL
----------------------------------------
System.Web.Services
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Web.Services/2.0.0.0__b03f5f7f11d50a3a/System.Web.Services.dll
----------------------------------------
System.Data
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
xx61ferg
Assembly Version: 1.1.0.2
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
6newxp1r
Assembly Version: 1.1.0.2
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Runtime.Serialization.Formatters.Soap
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Runtime.Serialization.Formatters.Soap/2.0.0.0__b03f5f7f11d50a3a/System.Runtime.Serialization.Formatters.Soap.dll
----------------------------------------
vwywuxh0
Assembly Version: 1.1.0.2
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
Advent.MxRules.Messages
Assembly Version: 1.1.0.2
Win32 Version: n/a
CodeBase: http://localhost/MxRulesWeb/WinBin/Advent.MxRules.Messages.DLL
----------------------------------------
slwftpmv
Assembly Version: 1.1.0.2
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:





When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Thanks,
Julie

Poly J [Syncfusion]
Replied On February 16, 2007 09:09 AM

Hi Julie,

Thank you for using Syncfusion products.

We will contact our development team in this regard and let you know the time frame for fixing this issue on Tuesday.

Best Regards,
Poly



Julie Levy
Replied On March 26, 2007 04:01 PM

Hi -
any update on this?
Thanks,
Julie

Poly J [Syncfusion]
Replied On March 27, 2007 09:22 AM

Hi Julie,

Sorry for the delay in updating you. Could you please create a Direct-Trac incident with subject line "ComboBoxAdv dispose error- F56525 "? We will send you the bug fix details through Direct-Trac.

Thanks for your interest in Syncfusion Products.

Best Regards,
Poly


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