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Call method from interface or abstract class within static void

I'm usually a javascript developer, but for my company I just started learning c# in order to use the CimatronE 13 API to develop custom command line PDM tools for this 3D modelling software.
As I'm making progress understanding the programming language, there's this frustrating situation where I want to use an API endpoint method but I can't manage to get it working.
The Cimatron documentation says the following:
IPdm::GetRelatedDocuments
Syntax: RelatedDocuments = GetRelatedDocuments ( DocumentPath );
This method allows you to get related files from compound types of files, for example Assembly or Drawing.
Input: (String) DocumentPath,
Path to file. For example \Documents\Location\Folder\Document. The file must be Assembly or Drawing.
Return: (Variant) RelatedDocuments,
Variant type array each element of which contain two dimensioned string type array of files related to selected one.
This looks pretty straight forward to me, so I tried calling it in multiple ways from within the static void Main() method, but I keep getting errors:
var RelatedDocuments = interop.CimBaseAPI.IPdm.GetRelatedDocuments("path");
CS0120: An object reference is required for the non-static field, method, or property 'IPdm.GetRelatedDocuments(string)'
interop.CimBaseAPI.IPdm pdm = new interop.CimBaseAPI.IPdm();
var RelatedDocuments = pdm.GetRelatedDocuments("path");
CS0144: Cannot create an instance of the abstract class or interface 'IPdm'
Any ideas? It's probably simple but I'm still a noob with c# :p
EDIT:
Cimatron documentation about the interface interop.CimBaseAPI.IPdm:
Properties:
Get
Query (String, DocumentEnumType, DocumentEnumUnit )
Variant
Methods:
A lot, including Variant GetRelatedDocuments ( String )

As how I see it now... interop.CimatronE.IPdm is an interface and in order to use it's methods, we first need access to the Cimatron application. Using the application object, we can use it's methods to get the desired interfaces such as IPdm and use their methods.
The following code gives no errors from the compiler but does when executing. This seems to be related to version 13 of CimatronE, since the application object works just fine using version 12. A lot has changed between these versions which I think is the reason the API is not functioning properly, outdated.
interop.CimAppAccess.AppAccess AppAcc = new interop.CimAppAccess.AppAccess();
interop.CimatronE.IApplication CimApp = /*(interop.CimatronE.IApplication)*/AppAcc.GetApplication();
interop.CimatronE.IPdm pdm = CimApp.GetPdm();
var RelatedDocuments = pdm.GetRelatedDocuments("path");
Console.WriteLine(RelatedDocuments);
Please correct me if I'm wrong! (since I just started and still learning c#)

I ran into this same issue with Cimatron 14.
I needed to make some changes in Visual Studio for things run properly with Cimatron.
Run Visual Studio in administrator mode
Set your Debug & Release Solution Platform to 'x64'
It was also recommended to point the build path for release & debug to the same folder as the Cimatron references. In my case 'C:\Program Files\3D Systems\Cimatron\14.0\Program'. However my code appears to run fine without this.
I created the Cimatron Application with this code (VB.Net):
Dim gAppAccess As New CIMAPPACCESSLib.AppAccess 'Define an AppAccess object to get running active application
Dim gApp As CIMAPPACCESSLib.Application 'Define an Application object
gApp = gAppAccess.GetApplication 'Getting running active application
If gApp Is Nothing Then
gApp = New CIMAPPACCESSLib.Application 'Creating a new instance of a Cimatron application
End If
References: Interop.CIMAPPACCESSLib.dll & interop.CimServicesAPI.dll
It is my understanding that Cimatron 15 may also requires some manifest changes.
There is some help information in the Cimatron program under Cimatrom Modules > Cimaton SDK that may be mildly helpful.

Xamarin Android - How to use JobInfo.TriggerContentUri when there's no constructor available?

I want to convert a simple code provided by google for android, allowing me to create a jobservice which triggers when a new media is created (source).
I can convert almost all without any problem, but it seems impossible to create a new TriggerContentUri, because no constructor exists :
JobInfo.Builder builder = new JobInfo.Builder(0, new ComponentName(context, serviceName));
// Look for specific changes to images in the provider.
// !!! Below no constructor exists : new JobInfo.TriggerContentUri(...)
builder.AddTriggerContentUri(new JobInfo.TriggerContentUri(MediaStore.Images.Media.ExternalContentUri, TriggerContentUriFlags.NotifyForDescendants));
// Also look for general reports of changes in the overall provider.
//builder.addTriggerContentUri(new JobInfo.TriggerContentUri(MEDIA_URI, 0));
var jobInfo = builder.Build();
Do someone has a solution for this kind of problem, or is this simply a bug in the xamarin implementation ?
My solution references Mono.Android 7.1, and targets Android 6.0 at minimum.
Thanks.

Try this:
JobInfo.TriggerContentUri(Uri uri, int flags)
Source:
https://developer.android.com/reference/android/app/job/JobInfo.TriggerContentUri.html

I answer my own question, because it is a bug in the xamarin implementation.
A bug is opened on their bugzilla platform : https://bugzilla.xamarin.com/show_bug.cgi?id=59198

Is it possible to use Gephi compiled with IKVM in a website?

I'm currently trying to load and use the Gephi Toolkit from within a .Net 4 C# website.
I have a version of the toolkit jar file compiled against the IKVM virtual machine, which works as expected from a command line application using the following code:
var controller = (ProjectController)Lookup.getDefault().lookup(typeof(ProjectController));
controller.closeCurrentProject();
controller.newProject();
var project = controller.getCurrentProject();
var workspace = controller.getCurrentWorkspace();
The three instances are correctly instantiated in a form similar to org.gephi.project.impl.ProjectControllerImpl#8ddb93.
If however I run the exact same code, with the exact same using statements & references, the very first line loading the ProjectController instance returns null.
I have tried a couple of solutions
Firstly, I have tried ignoring the Lookup.getDefault().lookup(type) call, instead trying to create my own instances:
var controller = new ProjectControllerImpl();
controller.closeCurrentProject();
controller.newProject();
var project = controller.getCurrentProject();
var workspace = controller.getCurrentWorkspace();
This fails at the line controller.newProject();, I think because internally (using reflector) the same Lookup.getDefault().lookup(type) is used in a constructor, returns null and then throws an exception.
Secondly, from here: Lookup in Jython (and Gephi) I have tried to set the %CLASSPATH% to the location of both the toolkit JAR and DLL files.
Is there a reason why the Lookup.getDefault().lookup(type) would not work in a web environment? I'm not a Java developer, so I am a bit out of my depth with the Java side of this.
I would have thought it possible to create all of the instances myself, but haven't been able to find a way to do so.
I also cannot find a way of seeing why the ProjectController load returned null. No exception is thrown, and unless I'm being very dumb, there doesn't appear to be a method to see the result of the attempted load.
Update - Answer
Based on the answer from Jeroen Frijters, I resolved the issue like this:
public class Global : System.Web.HttpApplication
{
public Global()
{
var assembly = Assembly.LoadFrom(Path.Combine(root, "gephi-toolkit.dll"));
var acl = new AssemblyClassLoader(assembly);
java.lang.Thread.currentThread().setContextClassLoader(new MySystemClassLoader(acl));
}
}
internal class MySystemClassLoader : ClassLoader
{
public MySystemClassLoader(ClassLoader parent)
: base(new AppDomainAssemblyClassLoader(typeof(MySystemClassLoader).Assembly))
{ }
}
The code ikvm.runtime.Startup.addBootClassPathAssemby() didn't seem to work for me, but from the provided link, I was able to find a solution that seems to work in all instances.

This is a Java class loader issue. In a command line app your main executable functions as the system class loader and knows how to load assembly dependencies, but in a web process there is no main executable so that system class loader doesn't know how to load anything useful.
One of the solutions is to call ikvm.runtime.Startup.addBootClassPathAssemby() to add the relevant assemblies to the boot class loader.
For more on IKVM class loading issues see http://sourceforge.net/apps/mediawiki/ikvm/index.php?title=ClassLoader

MonoTouch/Three20: Add many items to the first page of TTLauncherView

I observed some unexpected behavior with TTLauncherView from Three20.
After creating a standard view like this
var launcher = new Three20.TTLauncherView();
If I try to add TTLauncherItemitems like this
launcher.AddItem(item1, false);
launcher.AddItem(item2, false);
it creates a new page for each items.
Reading some Objective-C sample I came across something that would translate like this in C#, but it doesn't work neither, due to a System.MissingMethodException: Method not found: 'MonoTouch.Foundation.NSObject.IsNewRefcountEnabled' at runtime.
var items = NSArray.FromObjects(NSArray.FromObjects (item1, item2));
launcher.Pages = items;
So how would one go about adding many items to the first page of an TTLauncherView with MonoTouch using the official Three20 bindings?

System.MissingMethodException: Method not found: 'MonoTouch.Foundation.NSObject.IsNewRefcountEnabled
This error comes from bindings compiled with MonoTouch 5.1+ where a new refcount mode is available.
If you're using MonoTouch 5.0.x (latest stable) then you'll need to rebuild the Three20 bindings library to use them in your project.
Otherwise you can update to the latest MonoTouch (5.2.1) beta to use the binding binaries you already have. A stable release should be available soon so using the beta for a short term might be easier for you (than rebuilding the bindings).

How do I use the Mono.CSharp interpreter in Microsoft.NET

I was under the impression Mono's compiler was usable in Microsoft.NET
edit: updated blog posting here that I originally missed that explains some of it (is consistent with Justin's answers)
I created a simple class to try to use it
[TestFixture]
class Class1
{
[Test]
public void EXPR()
{
Evaluator.Run("using System;");
int sum = (int)Evaluator.Evaluate("1+2");
}
}
And a project in Visual Studio 2010 that references C:\Program Files (x86)\Mono-2.10.1\lib\mono\4.0\Mono.CSharp.dll.
However when I try to run this task I get the following exception, thrown at the Evaluator.Run call:
System.TypeInitializationException was unhandled by user code
Message=The type initializer for 'Mono.CSharp.Evaluator' threw an exception.
Source=Mono.CSharp
TypeName=Mono.CSharp.Evaluator
StackTrace:
at Mono.CSharp.Evaluator.Run(String statement)
at Experiments.Class1.EXPR() in W:\Experiments\Class1.cs:line 16
InnerException: System.TypeLoadException
Message=Method 'Mono.CSharp.Location.ToString()' is security transparent, but is a member of a security critical type.
Source=Mono.CSharp
TypeName=Mono.CSharp.Location.ToString()
StackTrace:
at Mono.CSharp.Evaluator..cctor()
InnerException:
A google confirms one other person asking this question but no answer. I tried to start reading the microsoft article on security transparent code but got confused quite quickly. Would someone be able to suggest a quick workaround to allow me to use this? And possibly summarise the security implications, if any, to me (in the context of my situation - in the future I hope to package it with a thick client application, to be used both internally and by end-users)

It has worked under .NET since April of last year.
Small point but I notice you are missing a semi-colon in your expression for sum.
int sum = (int)Evaluator.Evaluate("1+2;");
I only have Mono 2.11 (from git) at the moment and they have changed to using a multi-instance version of the compiler instead of the static version. So, my code looks a little different:
using System;
using Mono.CSharp;
namespace REPLtest
{
class MainClass
{
public static void Main (string[] args)
{
var r = new Report (new ConsoleReportPrinter ());
var cmd = new CommandLineParser (r);
var settings = cmd.ParseArguments (args);
if (settings == null || r.Errors > 0)
Environment.Exit (1);
var evaluator = new Evaluator (settings, r);
evaluator.Run("using System;");
int sum = (int) evaluator.Evaluate("1+2;");
Console.WriteLine ("The sum of 1 + 2 is {0}", sum);
}
}
}
EDIT: I guess I should confirm that I did in fact successfully execute this on .NET 4 (using Visual C# Express 2010 on Windows XP)
EDIT AGAIN: If you have Visual Studio, you can download the latest version of Mono.CSharp and compile it yourself. There is a .sln (solution file) included with the source so you can build it on Windows without Mono. The resulting assembly would run the code above. Miguel has a post explaining the new Mono.CSharp here.
FINAL EDIT: I uploaded the compiled Mono.CSharp.dll assembly that I actually used here. Include it as a reference to compile the code above.

It looks like this is a bug in Mono.
.NET 4 abandoned Code Access Security but kept the concept of Security Transparent Code. In a nutshell, low-level code that does stuff, like call unmanaged code, must be "security critical". Application level code is marked "transparent". "Transparent" code cannot call into "security critical" code.
It sounds like Mono.CSharp.Location.ToString() needs to be marked with the [SecuritySafeCritical] attribute if you want the Mono 2.10 code to work with .NET 4. Maybe even better would be marking all of Mono.CSharp as SecuritySafeCritical.
http://msdn.microsoft.com/en-us/library/system.security.securitycriticalattribute.aspx
PS. Sorry to have multiple answers for one question. After I realized that 2.11 would work, I became more curious about what the error with 2.10 meant. I cannot really combine this answer with the others.

I decided I should have kept the code more like the question but I did not want to overwrite my previous answer:
The code below works with version 2.11 of Mono.CSharp (available here including a solution file for building with Visual Studio/.NET). It was tested with .NET 4 on Windows XP. I do not have access to Mono 2.10 at the moment.
[TestFixture]
class Class1
{
private Evaluator evaluator;
public Class1()
{
var report = new Report(new ConsoleReportPrinter());
evaluator = new Evaluator(new CompilerSettings(), report);
}
[Test]
public void EXPR()
{
evaluator.Run("using System;");
int sum = (int)evaluator.Evaluate("1+2;");
}
}
EDIT: I uploaded the Mono.CSharp.dll assembly that I actually used here. Include it as a reference to compile the code above.