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Old March 1st 06, 07:46 PM posted to microsoft.public.outlook.program_vba
David Ing
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Posts: 7
Default .NET AddIn Question UserControl in Folder homepage

Thanks for the reply Dave.

I have tried the moral equivalent of the jscript in .NET, but it seems to
come down the following problems:

- When I get back the AddIns collection from within .NET, i.e. with this:

Dim o As Microsoft.Office.Core.COMAddIn
Dim addins As Microsoft.Office.Core.COMAddIns
addins = olapp.COMAddIns
o = addins.Item("TheRightProgId")

...then the COMAddIn.Item.Object is alway 'null'.

- I know that I can access the object because the jscript (the one that
actually launchs the .NET UserControl) works fine, i.e. can use the COMAddIn
..Object just fine.

Also, to be clear, I need info/funcitonality from my AddIn, not just general
Outlook info.

More Background, in case it's useful:

- This is a .NET 1.1 Shimmed Outlook Add-in written in C#
- Using Outlook 2003 (although I need it to work for more than just 2003,
which is why I didn't go the VSTO2005 route).
- If I write a stand-alone VB.NET app that get's a new _app, i.e. outside
the AddIn Outlook.ApplicationClass, then the COMAddIn.Object are always
'null' too, even though they 'run' and are shown '.Connected=true'

Any help, ideas etc most appreciated...

"Dave Kane [MVP - Outlook]" wrote:

I haven't tried this but I assume that you already tried the equivalent of
your in-page jscript and that didn't work. You can get to an add-in in the
running Outlook session from IE hosted in a FHP, but a standalone browser
has different security barriers. Perhaps your UserControl, even though it's
hosted in the FHP, is hitting those barriers. Do you need to reach the
add-in instance that Outlook loaded on startup, or just access Outlook data?


"David Ing" wrote in message
...
Hello,

I have a .NET winforms UserControl hosted inside a HTML page which is
referenced as a Outlook Folder Home Page. (Kind of like the recent MSFT
CRM
Integration example)

The .NET UserControl is initialized by using the following bit of jscript
in
the HTML:

var oApp = window.external.OutlookApplication;
SomeControl.Initialize(oApp);

So what I need some info around is this: How do I, from my .NET
UserControl,
gain access back into my .NET Outlook Add-in instance?

Paraphrased, I need to be able to call .NET functions from my UserControl
(the one hosted in the HTML page) back into the Outlook-Addin.

In jscript, in the same HTML page, I can reference the Add-In using the
COMAddIns enumeration, i.e (roughly):

var addin = app.COMAddIns.Item("MyAddIn.Connect");
var h = addin.Object;
h.AdotNetFunctionInMyAddIn("hello")

But how would I do this from within my .NET UserControl in C#?

Any help, clues, ideas appreciated. Thanks!
David




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