XML DA client applications that are based on XMLDA.NET use a reference to the XmlDaNet.dll or XmlDaNet.Net4.dll instead of a web service reference.
Applications that want to make secure server access need to reference the assembly XmlDaNetWCF.dll or XmlDANetWCF.Net4.dll.
Secure access is only possible with WCF based XML DA server.
To access .NET2 XML DA web services the WCF communicaiton must be configured for basicHttp binding.
All XMLDA.NET DLLs also support the access of OPC DA V2/V3 servers.
The XMLDA.NET assembly contains two namespaces.
| Namespace | Description |
|---|---|
| xmldanet | The xmldanet namespace contains the server access and helper methods.
XmlServer is the main class with the server access methods. |
| xmldanet.xmlda | The xmldanet.xmlda namespace contains classes with the XML-DA defined classes and enumerators. |
Visual Studio New Project Wizards are provide for VB.NET and C#.
Existing applications can be extended with XML DA / OPC DA server access by adding a reference to the XMLDA.NET assembly. This can be done manually or by using the class wizard for VB.NET or C#.