HI
i have developed COM Addin, in frame work 1.1 , C# and outlook
2003, it was wroking fine i can able to send the mail with customised
form , but now i instal the FrameWork 2.0, it not working , i can
not able to send the mails form now it is showing following error .
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.InvalidCastException: Unable to cast COM object of type
'System.__ComObject' to class type
'Microsoft.Office.Interop.Outlook.MailItemClass'. COM components that
enter the CLR and do not support IProvideClassInfo or that do not have
any interop assembly registered will be wrapped in the __ComObject
type. Instances of this type cannot be cast to any other class; however
they can be cast to interfaces as long as the underlying COM component
supports QueryInterface calls for the IID of the interface.
at OutlookMail.frmMailOutlook.btnSend_Click_1(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.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: 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
----------------------------------------
SuperClockOutlook
Assembly Version: 1.0.2183.26307
Win32 Version: 1.0.2183.26307
CodeBase: file:///C:/Program%20Files/Default%20Company%20Name/SuperClockOutlookSetup/SuperClockOutlook.dll
----------------------------------------
Extensibility
Assembly Version: 7.0.3300.0
Win32 Version: 7.00.9466
CodeBase: file:///C:/WINDOWS/assembly/GAC/Extensibility/7.0.3300.0__b03f5f7f11d50a3a/Extensibility.dll
----------------------------------------
Microsoft.Office.Interop.Outlook
Assembly Version: 11.0.0.0
Win32 Version: 11.0.5530
CodeBase:
file:///C:/WINDOWS/assembly/GAC/Microsoft.Office.Interop.Outlook/11.0.0.0__71e9bce111e9429c/Microsoft.Office.Interop.Outlook.dll
----------------------------------------
office
Assembly Version: 11.0.0.0
Win32 Version: 11.0.5530
CodeBase: file:///C:/WINDOWS/assembly/GAC/office/11.0.0.0__71e9bce111e9429c/office.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
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
----------------------------------------
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
----------------------------------------
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.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
----------------------------------------
System.Transactions
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase:
file:///C:/WINDOWS/assembly/GAC_32/System.Transactions/2.0.0.0__b77a5c561934e089/System.Transactions.dll
----------------------------------------
System.EnterpriseServices
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase:
file:///C:/WINDOWS/assembly/GAC_32/System.EnterpriseServices/2.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.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
----------------------------------------
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
----------------------------------------
************** 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:
<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>
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.
with regards
chand

COM Addin, in frame work 1.1 , C# and outlook 2003, it wast wroking fine i can able to send the mail with customised form , bu
AndrewJones123543
Tduffy77
Interesting. Are you sure it is the .NET Fx 2.0 that broke your add-in (I suspect it may be incorrect type lib registration for outlook) What happens if you lock back to .NET Fx 1.1 (e.g. by placing and outlook.exe.config file). See this link for the content of the file. Just remember to remove the .config file after you have done the configuration - it is a bad practice to lock to .NET Fx 1.1 since it will prevent add-ins build on .NET Fx 2.0 from running.
As a workaround (which is also a recommended practice) I would suggest to not cast your pointer to MailItemClass, but rather to a MailItem interface.
asum
Bobby Thurman
Hi Misha,
I have developed application for Outlook 2003 using Outlook Primary Interop Assemblies (Microsoft.Office.Interop.Outlook.dll). I am interating each mailitem in the inbox to do some processing. While I cast the MailItem of the inbox I get the following error:
{"Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Interop.Outlook._MailItem'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{00063034-0000-0000-C000-000000000046}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE))."}
I have following block of code:
int
nCount = objFindItems.Count; for (int index = 1; index <= nCount; index++) // while (itrFindItems.MoveNext()){
_MailItem objEmail = (_MailItem)(objFindItems[index]);}
Please help me where I am missing.
thanks in advance
Sanjeev
Orogui
Jason Nadrowski
Privicesly it was working fine in Frame work 1.1
Microsoft.Office.Interop.Outlook.MailItemClass sendMial = (Microsoft.Office.Interop.Outlook.MailItemClass)outlook.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);
when i changed frame work 2.0 i had above problem , i solved flowing way
Microsoft.Office.Interop.Outlook._MailItem sendMial = (Microsoft.Office.Interop.Outlook.MailItem)outlook.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);
chand.
Carlitos
caligula
Thank you so much Micha!
I have been struggling with same problem for some days now and when i used the interfaces instead of the classes (in my defence, it took over the code from somebody else ;-) my outlook add-in worked.
I have one remaining problem, however. The outlook add-in works fine when i start outlook, but whe i try to debug using VS2003, Outlook crashes.
Is there another way than using the config file to solve this problem
Thanks,
Maarten
LearnerNM