Error CS0536

[Roland]

Sorry for Cross-Posting ^O^
Hi All,

I'm trying to generate a C# wrapper for a Windows type library using the
following command line ...

csc /target:library /doc:Interop.MyLibrary.xml /unsafe Interop.MyLibrary.cs

Interop.MyLibrary.log

And receiving the following error message ...

Interop.MyLibrary.cs(499,18): error CS0536:
'Interop.MyLibrary.IImpBaseCollection_SinkHelper' does not implement
interface member 'Interop.MyLibrary.IImpBaseCollection.Item(object) '.
'Interop.MyLibrary.IImpBaseCollection_SinkHelper.I tem(object)' is either
static, not public, or has the wrong return type.

Here's the code....

(Line 499
Any ideas appreciated!! ;-)

Thanks,
Roland

-----------------
/// <summary><para><c>IImpBaseCollection</c> interface.</para></summary>
[Guid("5616A320-AB4D-11D0-8E2F-00A0C9050603")]
[ComImport]
[TypeLibType((short)4096)]
[DefaultMember("Item")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceI sIDispatch)]

// ***** THIS IS LINE 499 ********
public interface IImpBaseCollection: System.Collections.IEnumerable
{

[DispId(0)]
[return: MarshalAs(UnmanagedType.IDispatch)]
object Item (object nIndex);

object _NewEnum
{

[DispId(-4)]

[return: MarshalAs(UnmanagedType.IUnknown)]

get;

}

[DispId(2)]

object Parent

{

[return: MarshalAs(UnmanagedType.IDispatch)]

get;

}

[DispId(3)]

int Count
{
get;
}

}
[return: MarshalAs(UnmanagedType.IDispatch)]
public delegate object IImpBaseCollection_ItemEventHandler (object nIndex);
[return: MarshalAs(UnmanagedType.IUnknown)]
public delegate object IImpBaseCollection__NewEnumEventHandler () /*
property get method */;
[ComEventInterface(typeof(IImpBaseCollection),typeo f(IImpBaseCollection_Even
tProvider))]
[ComVisible(false)]

public interface IImpBaseCollection_Event

{
event IImpBaseCollection_ItemEventHandler Item;
event IImpBaseCollection__NewEnumEventHandler _NewEnum;
}

[ClassInterface(ClassInterfaceType.None)]

internal class IImpBaseCollection_SinkHelper: IImpBaseCollection
{
public int Cookie = 0;
public event IImpBaseCollection_ItemEventHandler ItemDelegate = null;
public void Set_ItemDelegate(IImpBaseCollection_ItemEventHandl er deleg)
{

ItemDelegate = deleg;
}

public bool Is_ItemDelegate(IImpBaseCollection_ItemEventHandle r deleg)
{
return (ItemDelegate == deleg);
}

public void Clear_ItemDelegate()
{
ItemDelegate = null;
}

void Item (object nIndex)

{

if (ItemDelegate!=null)

ItemDelegate(nIndex);

}

public event IImpBaseCollection__NewEnumEventHandler _NewEnumDelegate =
null;
public void Set__NewEnumDelegate(IImpBaseCollection__NewEnumEv entHandler
deleg)

{
_NewEnumDelegate = deleg;
}

public bool Is__NewEnumDelegate(IImpBaseCollection__NewEnumEve ntHandler
deleg)
{
return (_NewEnumDelegate == deleg);
}

public void Clear__NewEnumDelegate()
{
_NewEnumDelegate = null;
}

void _NewEnum () /* property get method */
{
if (_NewEnumDelegate!=null)
_NewEnumDelegate();
}

}

[Dmitriy Lapshin [C# / .NET MVP]]

Hi Roland,

You inherit the following class:

IImpBaseCollection_SinkHelper

from IImpBaseCollection and therefore have to implement all methods and
properties declared in this interface. On the other hand, you have an Item
method in this class that is declared in the IImpBaseCollection interface,
but the IImpBaseCollection_SinkHelper.Item returns "void" while
IImpBaseCollection.Item should return "object". This causes a conflict the
compiler complains about:

'Interop.MyLibrary.IImpBaseCollection_SinkHelper.I tem(object)' is either
static, not public, or has the wrong return type. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Roland" <ro***************@sympatico.ca> wrote in message
news:XH*********************@news20.bellglobal.com ... Sorry for Cross-Posting ^O^
Hi All,

I'm trying to generate a C# wrapper for a Windows type library using the
following command line ...

csc /target:library /doc:Interop.MyLibrary.xml /unsafe Interop.MyLibrary.cs

Interop.MyLibrary.log

And receiving the following error message ...

Interop.MyLibrary.cs(499,18): error CS0536:
'Interop.MyLibrary.IImpBaseCollection_SinkHelper' does not implement
interface member 'Interop.MyLibrary.IImpBaseCollection.Item(object) '.
'Interop.MyLibrary.IImpBaseCollection_SinkHelper.I tem(object)' is either
static, not public, or has the wrong return type.

Here's the code....

(Line 499
Any ideas appreciated!! ;-)

Thanks,
Roland

-----------------
/// <summary><para><c>IImpBaseCollection</c> interface.</para></summary>
[Guid("5616A320-AB4D-11D0-8E2F-00A0C9050603")]
[ComImport]
[TypeLibType((short)4096)]
[DefaultMember("Item")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceI sIDispatch)]

// ***** THIS IS LINE 499 ********
public interface IImpBaseCollection: System.Collections.IEnumerable
{

[DispId(0)]
[return: MarshalAs(UnmanagedType.IDispatch)]
object Item (object nIndex);

object _NewEnum
{

[DispId(-4)]

[return: MarshalAs(UnmanagedType.IUnknown)]

get;

}

[DispId(2)]

object Parent

{

[return: MarshalAs(UnmanagedType.IDispatch)]

get;

}

[DispId(3)]

int Count
{
get;
}

}
[return: MarshalAs(UnmanagedType.IDispatch)]
public delegate object IImpBaseCollection_ItemEventHandler (object

nIndex);

[return: MarshalAs(UnmanagedType.IUnknown)]
public delegate object IImpBaseCollection__NewEnumEventHandler () /*
property get method */;
[ComEventInterface(typeof(IImpBaseCollection),typeo f(IImpBaseCollection_Even tProvider))]
[ComVisible(false)]

public interface IImpBaseCollection_Event

{
event IImpBaseCollection_ItemEventHandler Item;
event IImpBaseCollection__NewEnumEventHandler _NewEnum;
}

[ClassInterface(ClassInterfaceType.None)]

internal class IImpBaseCollection_SinkHelper: IImpBaseCollection
{
public int Cookie = 0;
public event IImpBaseCollection_ItemEventHandler ItemDelegate = null;
public void Set_ItemDelegate(IImpBaseCollection_ItemEventHandl er deleg)
{

ItemDelegate = deleg;
}

public bool Is_ItemDelegate(IImpBaseCollection_ItemEventHandle r deleg)
{
return (ItemDelegate == deleg);
}

public void Clear_ItemDelegate()
{
ItemDelegate = null;
}

void Item (object nIndex)

{

if (ItemDelegate!=null)

ItemDelegate(nIndex);

}

public event IImpBaseCollection__NewEnumEventHandler _NewEnumDelegate =
null;
public void Set__NewEnumDelegate(IImpBaseCollection__NewEnumEv entHandler
deleg)

{
_NewEnumDelegate = deleg;
}

public bool Is__NewEnumDelegate(IImpBaseCollection__NewEnumEve ntHandler
deleg)
{
return (_NewEnumDelegate == deleg);
}

public void Clear__NewEnumDelegate()
{
_NewEnumDelegate = null;
}

void _NewEnum () /* property get method */
{
if (_NewEnumDelegate!=null)
_NewEnumDelegate();
}

}