[02/03] pre-processor directive

Is there a concept of a pre-processor directive in .NET?

any code samples :wave:

It's called conditional compilation in VB.NET and it's done much the same way as it is in C:

VB Code:

#If DEBUG Then
        MessageBox.Show("This is a Debug build.")
#Else
        MessageBox.Show("This is a Release build.")
#End If

DEBUG is defined by default in a Debug build and TRACE is defined by default in both Debug and Release builds. You can define additional constants for a specific configuration in the Property Pages for the project under Configuration Properties -> Build.

Hi Jim,
Here is my specific problem. I have a got a wsdl (a) for a webservice running on server1 and another wsdl (b) for a webservice running on server2.

I used the wsdl utility to convert both into vb files. Both webservices have the same input / output parameters.

Code:

---

    <System.Web.Services.Protocols.SoapDocumentMethodAttribute("document/http://devlserver:CreateQLOpty", Use:=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle:=System.Web.Services.Protocols.SoapParameterStyle.Bare)>  _
    Public Function CreateQLOpty(<System.Xml.Serialization.XmlElementAttribute([Namespace]:="http://devlserver")> ByVal QL_spcTO_spcEMCOT_CreateQLOpty_Input As QL_spcTO_spcEMCOT_CreateQLOpty_Input) As <System.Xml.Serialization.XmlElementAttribute("QL_spcTO_spcEMCOT_CreateQLOpty_Output", [Namespace]:="http://devlserver")> QL_spcTO_spcEMCOT_CreateQLOpty_Output
        Dim results() As Object = Me.Invoke("CreateQLOpty", New Object() {QL_spcTO_spcEMCOT_CreateQLOpty_Input})
        Return CType(results(0),QL_spcTO_spcEMCOT_CreateQLOpty_Output)
    End Function

---

I wish to change the http:// with variables. If I try changing the one inside the namespace, the vb file does not compile.

Any ideas?

Cheers,
Abhijit

yes, when you declare your webservice object in the code where you are using it, the object will have a .url property, you can change this at runtime to whichever server you need.

VB Code:

Dim MyWebService as New WebServiceClassName
MyWebService.URL = "http://www.developmentserver.com/service.asmx"
'or
MyWebService.URL = "http://www.productionserver.com/service.asmx"

I did try doing that Matt, but now the trouble seems to be namespaces. The compilation did take place, but it still makes a call to http://devlserver instead of http://sptserver

I always set my namespaces to the production server even when in dev, and use the code I showed you to point myself between servers..

I am not an expert on webservices, I have just started using them, but I can tell you that I have gotten it working dev to production to dev using that code, and using the namespaces how I mentioned