Multiple FormRegions, the GUID, and ThisAddIn.RequestService()

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cGtlbGxleQ

My setup:

Windows XP, Microsoft Visual Studio 2005, using VSTO SE, developing in C#.

Question background:

With regard to a single FormRegion, Microsoft instructs the following:

Replace the definition of the FormRegionHookup class with the following

code. This code implements the

Microsoft.Office.Interop.Outlook.FormRegionStartup interface, and applies the

ComVisibleAttribute, GuidAttribute, ProgIdAttribute, and

ClassInterfaceAttribute attributes to the FormRegionHookup class.

[ComVisible(true),

Guid("88F7BFBE-7666-4a0c-BCFD-2740E6625E04"),

ProgId("FormRegionAddIn.FormRegionHookup"),

ClassInterface(ClassInterfaceType.AutoDual)]

public class FormRegionHookup : Outlook.FormRegionStartup

Question:

If I have 2 FormRegions that I have created and I have 2 classes where each

class extends the Outlook.FormRegionStartup interface.

1. Do I use the same GUID for both classes?

Guid("88F7BFBE-7666-4a0c-BCFD-2740E6625E04")

My gut answer to this question is "Yes", but I just want to make sure.
 
Worse yet, my "ThisAddIn" class only has 1 "protected override object

RequestService(Guid serviceGuid)" method.

We are taught to write:

if (serviceGuid ==

typeof(Microsoft.Office.Interop.Outlook.FormRegionStartup).GUID)

{

// Instantiate your form here.

myForm = new myFormRegionHookup();

myForm2 = new myForm2RegionHookup();

// Then return your form to the caller. Yeah, but which form???

return ???;

}

"pkelley" wrote:


> My setup:
> Windows XP, Microsoft Visual Studio 2005, using VSTO SE, developing in C#.

> Question background:
> With regard to a single FormRegion, Microsoft instructs the following:

> Replace the definition of the FormRegionHookup class with the following
> code. This code implements the
> Microsoft.Office.Interop.Outlook.FormRegionStartup interface, and applies the
> ComVisibleAttribute, GuidAttribute, ProgIdAttribute, and
> ClassInterfaceAttribute attributes to the FormRegionHookup class.

> [ComVisible(true),
> Guid("88F7BFBE-7666-4a0c-BCFD-2740E6625E04"),
> ProgId("FormRegionAddIn.FormRegionHookup"),
> ClassInterface(ClassInterfaceType.AutoDual)]
> public class FormRegionHookup : Outlook.FormRegionStartup

> Question:
> If I have 2 FormRegions that I have created and I have 2 classes where each
> class extends the Outlook.FormRegionStartup interface.

> 1. Do I use the same GUID for both classes?

> Guid("88F7BFBE-7666-4a0c-BCFD-2740E6625E04")

> My gut answer to this question is "Yes", but I just want to make sure.
 
Solved these problems:

The FormRegion you return from "RequestService()" will define the

"FormRegionName" used in the call to "GetFormRegionStorage()".

Since I have 2 FormRegions, and since "RequestService()" gets called once

for each FormRegion in my AddIn, I just keep track of which FormRegion I

return from "RequestService()" using a boolean variable, like this:

// Return the "m_form1" on the first pass and the

// "m_form2" on the next pass.

if (!m_form1Returned)

{

m_form1Returned = true;

return m_form1;

}

else

{

return m_form2;

}

"pkelley" wrote:


> Worse yet, my "ThisAddIn" class only has 1 "protected override object
> RequestService(Guid serviceGuid)" method.

> We are taught to write:

> if (serviceGuid ==
> typeof(Microsoft.Office.Interop.Outlook.FormRegionStartup).GUID)
> {
> // Instantiate your form here.
> myForm = new myFormRegionHookup();
> myForm2 = new myForm2RegionHookup();

> // Then return your form to the caller. Yeah, but which form???
> return ???;
> }

> "pkelley" wrote:
>
> > My setup:
> > Windows XP, Microsoft Visual Studio 2005, using VSTO SE, developing in C#.
> > Question background:
> > With regard to a single FormRegion, Microsoft instructs the following:
> > Replace the definition of the FormRegionHookup class with the following
> > code. This code implements the
> > Microsoft.Office.Interop.Outlook.FormRegionStartup interface, and applies the
> > ComVisibleAttribute, GuidAttribute, ProgIdAttribute, and
> > ClassInterfaceAttribute attributes to the FormRegionHookup class.
> > [ComVisible(true),
> > Guid("88F7BFBE-7666-4a0c-BCFD-2740E6625E04"),
> > ProgId("FormRegionAddIn.FormRegionHookup"),
> > ClassInterface(ClassInterfaceType.AutoDual)]
> > public class FormRegionHookup : Outlook.FormRegionStartup
> > Question:
> > If I have 2 FormRegions that I have created and I have 2 classes where each
> > class extends the Outlook.FormRegionStartup interface.
> > 1. Do I use the same GUID for both classes?
> > Guid("88F7BFBE-7666-4a0c-BCFD-2740E6625E04")
> > My gut answer to this question is "Yes", but I just want to make sure.
 
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