What are you doing exactly when you say there are no errors when it is compiled? A Web Service proxy is code that needs to get compiled so it surely won't run or load without compilation...

If you want to dynamically access a Web Service where the definition is not known beforehand you will need to build your SOAP calls manually.

Alternately you can dynamiocally gen the proxy and then compile it on the fly using the CodeDom...


+++ Rick ---


>I am creating web services on the fly and I am having trouble creating an instance of the object. It comes up with the error when executing this line:-
>
> Dim t As Type = assembly.GetType("RMBC.Webservice.DynamicProxy." + objTypeName)
>
>after executing this statement t is still nothing. Can you tell me what I
>am doing wrong. There are no errors when it is
>compiled.
>
>
>The message that I receive is:
>
>
> System.ArgumentNullException: Value cannot be null.
>Parameter name: type
> at System.Activator.CreateInstance(Type type, Boolean nonPublic)
> at System.Activator.CreateInstance(Type type)
> at RMBC_JobScheduler.DynamicProxyClass.CreateInstance(String objTypeName)
>in c:\inetpub\wwwroot\RMBC_JobScheduler\DynamicProxyClass.vb:line 236
> at RMBC_JobScheduler.DynamicProxyClass.Invokecall() in
>c:\inetpub\wwwroot\RMBC_JobScheduler\DynamicProxyClass.vb:line 79
> at RMBC_JobScheduler.JobScheduler.ExecuteProgram() in
>c:\inetpub\wwwroot\RMBC_JobScheduler\JobScheduler.asmx.vb:line 220
> at RMBC_JobScheduler.JobScheduler.RunJob() in
>c:\inetpub\wwwroot\RMBC_JobScheduler\JobScheduler.asmx.vb:line 177
>
>when it is executing this statement:
>
> Return Activator.CreateInstance(t)
>
>I appreciate your help. Thank you.