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Old March 27th, 2013, 10:45 AM
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Default ClassicASP C# COM VBScript runtime error: Invalid procedure call or argument

Hi Classic ASP Experts,

I am new to VBScript, COM and Classic ASP. I am getting Microsoft VBScript runtime error: Invalid procedure call or argument, while trying to pass an argument of type class to the COM method call. Although the object is created and the Visual Studio intellisense shows the method name along with parameter. I am not able make procedure call or argument.

What am I missing?

Please help.

Here's my VBScript (ClassicASPHome.asp):

response.write("My first ASP script!")

set co = Server.CreateObject("ClassicASPCOM.ComplexObject")
co.Message = "Messi"
co.Number = 100


Dim ccom
Set ccom = Server.CreateObject("ClassicASPCOM.ClassCOM")


response.Write(ccom.GetMessage("1234567890"))

'---------------Works fine till here

Dim ret

' ---------------The following statement throws error

ret = ccom.PaymentDetails(co)

response.Write("Fine")



Code Snippet:

// C# Code (ClassicASPCOM.dll) built with Strong Name and Registered for COM Interop:

// Executed the following in Visual Studio Command Prompt in bin\Release folder
// Regasm ClassicASPCOM.dll

// Regasm ClassicASPCOM.dll /codebase

// Regasm ClassicASPCOM.dll /tlb

// gacutil/i ClassicASPCOM.dll

using System;
using System.Runtime.InteropServices;

namespace ClassicASPCOM
{
[ComVisibleAttribute(true)]
[Guid("D355BC25-B85F-4476-8D38-582F92F7B6F4")]
public interface IComplexObject
{
[DispId(2221)]
int Number {get; set;}
[DispId(2222)]
string Message { get; set; }
[DispId(2223)]
DateTime Dtime { get; set; }
}

[ComVisibleAttribute(true)]
[Guid("4E602191-8D09-458E-A0D0-A0A267696F78"),
ClassInterface(ClassInterfaceType.None)]
public class ComplexObject : IComplexObject
{
int Nmbr;
public int Number
{
get
{
return Nmbr;
}
set
{
Nmbr = value;
}
}

string Msg;
public string Message
{
get
{
return Msg;
}
set
{
Msg = value;
}
}

DateTime Dt;
public DateTime Dtime
{
get
{
return Dt;
}
set
{
Dt = value;
}
}
}

[ComVisibleAttribute(true)]
[Guid("4042FE79-8ACA-4E5D-9F14-2FF7C6AE8D88")]
public interface IGetMessage
{
[DispId(2224)]
string GetMessage(string Message);
[DispId(2225)]
string PaymentDetails(ComplexObject cObject);
}

[ComVisibleAttribute(true)]
[Guid("9A133858-5893-4CA7-9048-345CD0FCF535"),
ClassInterface(ClassInterfaceType.None)]
public class ClassCOM : IGetMessage
{
public string GetMessage(string Message)
{
return "Your Message: " + Message;
}

public string PaymentDetails(ComplexObject cObject)
{
return " Message: " + cObject.Message + " Number: " + cObject.Number;
}
}
}


Thanks

Last edited by recherche; March 28th, 2013 at 04:36 AM.
 


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