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Class creation error

davelalande
davelalande used Ask the Experts™
on
Hello,

Please help me why I am getting the error message, its really urgent.

bellow is the error message, which I am getting, I have defined a public class in a .vb file, which I am using trying to use.




Cannot create ActiveX component.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Exception: Cannot create ActiveX component.

Source Error:


Line 103:                                                            <td width="25%" align="right" height="40" valign="middle"><%
Line 104:                                                            dim HTTPSConfig as object
Line 105:                                                            HTTPSConfig = createobject("ThanXConfig")
Line 106:                                                            HTTPSConfig.IsHTTPS=false      '''''''Redirect to HTTPS
Line 107:                                                            if Request.ServerVariables("HTTPS")="off"  then
 

Source File: c:\inetpub\wwwroot\cart\viewcart.aspx    Line: 105

Stack Trace:


[Exception: Cannot create ActiveX component.]
   Microsoft.VisualBasic.Interaction.CreateObject(String ProgId, String ServerName) +231
   ASP.viewcart_aspx.__Render__control3(HtmlTextWriter __output, Control parameterContainer) in c:\inetpub\wwwroot\cart\viewcart.aspx:105
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +27
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +44
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +262
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +243
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +72
   System.Web.UI.Control.Render(HtmlTextWriter writer) +7
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +243
   System.Web
 
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Author

Commented:
Hello,

Can anyone please tell me why I getting that error.

Regads,
Software Engineer
Commented:
I don't know what the 'ThanXConfig" is supposed to be, and from the messsage, it would seem that neither does ActiveX.
When using com objects in .NET the best way is to register the COM object using regtlib (OCX,TLB) or RegSvr32.EXE (DLL) if not already done.

When you do this .NET creates a COM interop library that enables you to access the class using strong typing and normal class creation semantics.

i.e.

Register the component usng regtlib or regsvr32 (or both if required)
In the IDE open the add reference for the project
Select the COM tab
Select you component
Confirm everything and you should have a new reference in you project.

Now you can use the class browser to inspect it and create the class in a standard way.

i.e

Dim oObject as ThanXConfig.MyClass

'create object
oObject =  New ThanXConfig.MyClass(ConstructorArguments)

'call methods/functions
oObject.Method(Args)

'clean up
oObject.Dispose
oObject = Nothing

etc.

etc.

Hope that helps.

Regards

Toby.