"pecker" <peckerbird@sina.com> wrote in message
news:uz8XfXf1DHA.2872@TK2MSFTNGP09.phx.gbl...
> I have a com dll interface:
> Public Function Hulian_Acount_all(ByVal vIndex As Variant, _
> ByRef vDate As Variant, _
> ByRef vCount As Variant, _
> ByRef vMoney As Variant, _
> ByRef vMyDetail As Variant, _
> ByVal vTimeStamp As Variant, _
> ByVal vSPID As Variant, _
> ByVal vType As Variant, _
> ByVal vResult As Variant, _
> ByVal vSenderID As Variant, _
> ByVal vYourCount As Variant, _
> ByVal vYourMoney As Variant, _
> ByVal vDetail_result As Variant, _
> ByVal vSucess_count As Variant, _
> ByVal vSucess_money As Variant, _
> ByVal vFail_count As Variant, _
> ByVal vFail_money As Variant, _
> ByVal vYour_records As Variant)
> I use it in C# like this:
> obj.Hulian_Acount_all
>
(3,"","","","",TimeStamp,"","",Result,SenderID,TotalCount,TotalFee,"","","",
> "","","") ;
>
> But the compiler shows out the error: "cannot convert the string to ref
> object"
>
> How can I pass the 2 ~ 5 ByRef parameters to the dll in C# ? Thanks a
lot!
>
>

> pecker,
>
> Because they are declared as variants, you have to store your values
as
> type object first, and then pass them by ref. You will have to do this:
>
> // The values. <value> are the values you want to pass.
> object vDate = <value>, vCount = <value>, vMoney = <value>, vMyDetail =
> <value>;
>
> // Call the method.
> myObject.Hulian_Acount_all(vIndex, ref vDate, ref vCount, ref vMoney, ref
> vMyDetail, vTimeStamp, vSPID, vType, vResult, vSenderID, vYourcount,
> vYourMoney, vDetail_result, vSucess_count, vSucess_money, vFail_count,
> vFail_money, vYour_records);
>
> Hope this helps.
>
>
> --
> - Nicholas Paldino [.NET/C# MVP]
> - mvp@spam.guard.caspershouse.com
>
> "pecker" <peckerbird@sina.com> wrote in message
> news:uz8XfXf1DHA.2872@TK2MSFTNGP09.phx.gbl...
> > I have a com dll interface:
> > Public Function Hulian_Acount_all(ByVal vIndex As Variant, _
> > ByRef vDate As Variant, _
> > ByRef vCount As Variant, _
> > ByRef vMoney As Variant, _
> > ByRef vMyDetail As Variant, _
> > ByVal vTimeStamp As Variant, _
> > ByVal vSPID As Variant, _
> > ByVal vType As Variant, _
> > ByVal vResult As Variant, _
> > ByVal vSenderID As Variant, _
> > ByVal vYourCount As Variant, _
> > ByVal vYourMoney As Variant, _
> > ByVal vDetail_result As Variant, _
> > ByVal vSucess_count As Variant, _
> > ByVal vSucess_money As Variant, _
> > ByVal vFail_count As Variant, _
> > ByVal vFail_money As Variant, _
> > ByVal vYour_records As Variant)
> > I use it in C# like this:
> > obj.Hulian_Acount_all
> >
>
(3,"","","","",TimeStamp,"","",Result,SenderID,TotalCount,TotalFee,"","","",
> > "","","") ;
> >
> > But the compiler shows out the error: "cannot convert the string to ref
> > object"
> >
> > How can I pass the 2 ~ 5 ByRef parameters to the dll in C# ? Thanks a
> lot!
> >
> >
>
>