All,

I am trying to use the COM+ constructor string as follows:

[ConstructionEnabled (true)]
public sealed class xxxx: ServicedComponent
{

public override void Construct(string constructString)
{

}
{

But when I build the project I get the following error:

C:\xxx.cs(33): xxxxxx.Construct(string)': cannot change access modifiers
when overriding 'protected' inherited member
'System.EnterpriseServices.ServicedComponent.Construct(string)'

What am I doing wrong?

Thanks
Msuk

The 'Construct' method is defined as 'protected' in the ServicedComponent
class you can't change the access modifier in your derived class - this is
what the compiler error says...

You can't call this method externally from the class....

HTH

Ollie Riches

"msuk" <(E-Mail Removed)> wrote in message
news:3ECC9630-DCD1-4F12-89C3-(E-Mail Removed)...
> All,
>
> I am trying to use the COM+ constructor string as follows:
>
> [ConstructionEnabled (true)]
> public sealed class xxxx: ServicedComponent
> {
>
> public override void Construct(string constructString)
> {
>
> }
> {
>
> But when I build the project I get the following error:
>
> C:\xxx.cs(33): xxxxxx.Construct(string)': cannot change access modifiers
> when overriding 'protected' inherited member
> 'System.EnterpriseServices.ServicedComponent.Construct(string)'
>
> What am I doing wrong?
>
> Thanks
> Msuk
>
>
>

Hi,

All the examples show that you can have it as a public method e.g

http://www.ondotnet.com/pub/a/dotnet...t_ch10/?page=6

What should it be?

Thanks
Msuk

"Ollie Riches" wrote:

> The 'Construct' method is defined as 'protected' in the ServicedComponent
> class you can't change the access modifier in your derived class - this is
> what the compiler error says...
>
> You can't call this method externally from the class....
>
> HTH
>
> Ollie Riches
>
> "msuk" <(E-Mail Removed)> wrote in message
> news:3ECC9630-DCD1-4F12-89C3-(E-Mail Removed)...
> > All,
> >
> > I am trying to use the COM+ constructor string as follows:
> >
> > [ConstructionEnabled (true)]
> > public sealed class xxxx: ServicedComponent
> > {
> >
> > public override void Construct(string constructString)
> > {
> >
> > }
> > {
> >
> > But when I build the project I get the following error:
> >
> > C:\xxx.cs(33): xxxxxx.Construct(string)': cannot change access modifiers
> > when overriding 'protected' inherited member
> > 'System.EnterpriseServices.ServicedComponent.Construct(string)'
> >
> > What am I doing wrong?
> >
> > Thanks
> > Msuk
> >
> >
> >
>
>
>

IIRC IObjectConstruct (the COM+ construction interface) has the signature

IObjectConstruct
{
HRESULT Construct(IDispatch* pCtorObj);
}

This is obviously not the same signature as the overridable Construct method from ServiceComponent. So ServicedComponent implements the interface and then it's implementation of IObjectConstruct::Construct calls a protected virtual Construct method which you can override. Thats why the Construct method you override is protected rather than public

Regards]

Richard Blewett - DevelopMentor
http://www.dotnetconsult.co.uk/weblog
http://www.dotnetconsult.co.uk

The 'Construct' method is defined as 'protected' in the ServicedComponent
class you can't change the access modifier in your derived class - this is
what the compiler error says...

You can't call this method externally from the class....

HTH

Ollie Riches

"msuk" <(E-Mail Removed)> wrote in message
news:3ECC9630-DCD1-4F12-89C3-(E-Mail Removed)...
> All,
>
> I am trying to use the COM+ constructor string as follows:
>
> [ConstructionEnabled (true)]
> public sealed class xxxx: ServicedComponent
> {
>
> public override void Construct(string constructString)
> {
>
> }
> {
>
> But when I build the project I get the following error:
>
> C:\xxx.cs(33): xxxxxx.Construct(string)': cannot change access modifiers
> when overriding 'protected' inherited member
> 'System.EnterpriseServices.ServicedComponent.Construct(string)'
>
> What am I doing wrong?
>
> Thanks
> Msuk

You can't change the access modifier (he, but that's what the compiler
say's..;-).

Change your method definition to:

protected override void Construct(string s) {
..

}

And don't forget that passing a string is done through the
ConstructionEnabledAttribute.

[ConstructionEnabled(Enabled=true, Default="Test string")]


Willy.

"msuk" <(E-Mail Removed)> wrote in message
news:3ECC9630-DCD1-4F12-89C3-(E-Mail Removed)...
> All,
>
> I am trying to use the COM+ constructor string as follows:
>
> [ConstructionEnabled (true)]
> public sealed class xxxx: ServicedComponent
> {
>
> public override void Construct(string constructString)
> {
>
> }
> {
>
> But when I build the project I get the following error:
>
> C:\xxx.cs(33): xxxxxx.Construct(string)': cannot change access modifiers
> when overriding 'protected' inherited member
> 'System.EnterpriseServices.ServicedComponent.Construct(string)'
>
> What am I doing wrong?
>
> Thanks
> Msuk
>
>
>