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How can I add a method to my class due run-time?

I am trying to make a KI or something which is more like a Bot which can learn a little bit. For example I want to give him new commands. Therefor the Bot has to create new Methods due run-time so it can react on my inputs with the right Method. I wanted to know if and how it is possible to add a method into my existing class due run-time.
I have found some links already and examples like the CodeDomProvider, CSharpCodeProvider and the DynamicMethod but it seems like they can only create new runables (exe files) or create a preset which one can execute with new parameters.
What I need is a way to create a new Method in my existing class or a way to interact with my existing class. I was already thinking about Plugins but in my opinion it would be much work to create a plugin for each method and also not efficient am I right?
You may also know a better way then creating Methods for each command?
Edit 1:
With Assembly.CreateInstane("path"); I could "clone" my running program and together with a CSharpCodeProvider I could create a new exe with these Methods. But there is a problem. When I use a Method where is no Reference to in the Class such as using System.Windows.Forms gives me the error:
Line number 3, error number: CS0234, 'The type or namespace name' Windows' does not exist in the namespace 'System'. (Is an assembly reference missing?);
That would have been my Testcode right now:
//The String I am going to Add through my textfield
using System;
using System.Reflection;
using System.Windows.Forms;
public class Example
{
public static void Main()
{
Assembly assem = typeof(View).Assembly;
View v = (View ) assem.CreateInstance("Usopis");
if (! (v == null)) {
v.Height = 300;
MessageBox.Show("Instantiated a {0} object whose value is '{1}'",
v.GetType().Name, v);
}
else {
MessageBox.Show("Unable to instantiate a View object.");
}
}
}
//Code which should compile my String to a exe
private void Button_Click(object sender, EventArgs e) {
textBox2.Text = "";
CodeDomProvider codeProvider = CodeDomProvider.CreateProvider("CSharp");
CompilerParameters parameters = new CompilerParameters();
parameters.GenerateExecutable = true;
CompilerResults results = codeProvider.CompileAssemblyFromSource(parameters, textBox1.Text);
if(results.Errors.Count > 0) {
textBox2.ForeColor = Color.Red;
foreach(CompilerError CompErr in results.Errors) {
textBox2.Text = textBox2.Text +
"Line number " + CompErr.Line +
", Error Number: " + CompErr.ErrorNumber +
", '" + CompErr.ErrorText + ";" +
Environment.NewLine + Environment.NewLine;
}
} else {
//Successful Compile
textBox2.ForeColor = Color.Blue;
textBox2.Text = "Success!";
}
}

To fix the missing namespace error you have to add the missing reference:
parameters.ReferencedAssemblies.Add("System.Web.dll");
But that won`t solve all of your problems.
Maybe look into Lamdas...
That could be something for you:
https://www.strathweb.com/2018/01/easy-way-to-create-a-c-lambda-expression-from-a-string-with-roslyn/

xsd to class (C#) in visual studio 2019

I am following a tutorial, in one step it opens "VS2012 arm cross tools command prompt" and executes
xsd file.xsd /classes
I can't find "VS2012 arm cross tools command prompt" on my computer (my guess it's because I'm using VS2019) so I open the "Developer command prompt for VS 2019" instead, but when I run the command, I get an error:
"xsd" is not recognized as an internal or external command, program or executable batch file
Can someone tell me how I can create a class from an xsd file in VS 2019? Thank you for your time.

Once you have installed the Windows SDK. The following could be of help to you...it is .NET Core. Browse to the xsd.exe and add a reference to it in VS 2019.
class Program
{
static void Main(string[] args)
{
var rgs = new string[]
{
#"PathToYourDLL\My.dll",
"/type:ClassNameToGen"
};
AppDomain.CurrentDomain.FirstChanceException += (s, e) =>
{
string error = e.Exception.ToString();
var typeLoadException = e.Exception as ReflectionTypeLoadException;
if (typeLoadException != null)
{
foreach (var exception in typeLoadException.LoaderExceptions)
{
error += Environment.NewLine + Environment.NewLine + exception.ToString();
}
}
Console.WriteLine(error);
};
XsdTool.Xsd.Main(rgs);
Console.ReadLine();
}
}

ERROR: HRESULT: 0x8007007E System.IO.FileNotFoundException on Prolog and C# integration

I'm trying to call Prolog script file from C# program using SWI Prolog. I downloaded the code package from github (using this link). But, when I'm trying to run the HelloWorldDemo program the following error occurs:
System.IO.FileNotFoundException: 'The specified module could not be found. (Exception from HRESULT: 0x8007007E)'
on Line 105 on the following code:
private static void LoadUnmanagedLibrary(string fileName)
{
if (_hLibrary == null)
{
_hLibrary = NativeMethods.LoadDll(fileName);
if (_hLibrary.IsInvalid)
{
int hr = Marshal.GetHRForLastWin32Error();
Marshal.ThrowExceptionForHR(hr); //here the error occurs
}
}
}
I tried many solutions on the Internet, for example, provide the swi path on setenviromentvariable but the error still same.
Here is the code of HelloWorldDemo.cs:
static void Main(string[] args)
{
Environment.SetEnvironmentVariable("SWI_HOME_DIR", #"C:\Program Files\swipl\"); // I also used C:\Program Files\swipl\bin and didn't help too
if (!PlEngine.IsInitialized)
{
String[] param = { "-q" }; // suppressing informational and banner messages
PlEngine.Initialize(param);
PlQuery.PlCall("assert(father(martin, inka))");
PlQuery.PlCall("assert(father(uwe, gloria))");
PlQuery.PlCall("assert(father(uwe, melanie))");
PlQuery.PlCall("assert(father(uwe, ayala))");
using (var q = new PlQuery("father(P, C), atomic_list_concat([P,' is_father_of ',C], L)"))
{
foreach (PlQueryVariables v in q.SolutionVariables)
Console.WriteLine(v["L"].ToString());
Console.WriteLine("all children from uwe:");
q.Variables["P"].Unify("uwe");
foreach (PlQueryVariables v in q.SolutionVariables)
Console.WriteLine(v["C"].ToString());
}
PlEngine.PlCleanup();
Console.WriteLine("finshed!");
}
}
So, how can I fix this issue?
Note: I'm using Win10 x64, visual studio 2017 community.

How can I open AutoCAD 2015 through the .NET API

I've been browsing for a good hour and have yet to find something that would help with this. I'm working on opening AutoCAD from the .NET API in VS2013 using C#, but for some reason, I can never get AutoCAD to actually launch. I'm using the following code:
using System;
using System.Runtime.InteropServices;
using Autodesk.AutoCAD.Interop;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
namespace IOAutoCADHandler
{
public static class ACADDocumentManagement
{
[CommandMethod("ConnectToAcad")]
public static void ConnectToAcad()
{
AcadApplication acAppComObj = null;
// no version number so it will run with any version
const string strProgId = "AutoCAD.Application";
// Get a running instance of AutoCAD
try
{
acAppComObj = (AcadApplication)Marshal.GetActiveObject(strProgId);
}
catch // An error occurs if no instance is running
{
try
{
// Create a new instance of AutoCAD
acAppComObj = (AcadApplication)Activator.CreateInstance(Type.GetTypeFromProgID(strProgId), true);
}
catch //// STOPS HERE
{
// If an instance of AutoCAD is not created then message and exit
// NOTE: always shows this box and never opens AutoCAD
System.Windows.Forms.MessageBox.Show("Instance of 'AutoCAD.Application'" +
" could not be created.");
return;
}
}
// Display the application and return the name and version
acAppComObj.Visible = true;
System.Windows.Forms.MessageBox.Show("Now running " + acAppComObj.Name +
" version " + acAppComObj.Version);
// Get the active document
AcadDocument acDocComObj;
acDocComObj = acAppComObj.ActiveDocument;
// Optionally, load your assembly and start your command or if your assembly
// is demandloaded, simply start the command of your in-process assembly.
acDocComObj.SendCommand("(command " + (char)34 + "NETLOAD" + (char)34 + " " +
(char)34 + #"C:\Users\Administrator\Documents\All Code\main-libraries\IOAutoCADHandler\bin\Debug\IOAutoCADHandler.dll" + (char)34 + ") ");
acDocComObj.SendCommand("DRAWCOMPONENT");
}
}
Unfortunately, it always stops at the nested catch statement and always displays the popup box without opening AutoCAD. Any suggestions on how to at least make AutoCAD open for me?
EDIT: Error message

The issue is you're coding (correctly) to the AutoCAD interop interface. I recommend against that (due to potential version changes).
The other issue is that the documentation for AutoCAD plugins using the newer .net api is for plugins when AutoCAD is already running.
Final issue could be that the program Id of AutCAD is a mystery. I have resorted to making that a configurable setting, but default to "AutoCAD.Application", which will take the currently registered AutoCAD.Application on the production machine. If there are multiple versions installed on the machine and you want to be specific, then you could append the version number (which you'll need to research) to the ProgID like: "AutoCAD.Application.19", or "AutoCAD.Application.20" for 2015.
For the first issue, one technique is to use dynamics for the autoCad objects, particularly for creating instances. I have used the ObjectARX api for creating my application in a dummy project, and then switching to dynamics when I'm happy with the properties and method names.
In a standalone .Net application that starts AutoCAD you could use something like:
// I comment these out in production
//using Autodesk.AutoCAD.Interop;
//using Autodesk.AutoCAD.Interop.Common;
//...
//private static AcadApplication _application;
private static dynamic _application;
static string _autocadClassId = "AutoCAD.Application";
private static void GetAutoCAD()
{
_application = Marshal.GetActiveObject(_autocadClassId);
}
private static void StartAutoCad()
{
var t = Type.GetTypeFromProgID(_autocadClassId, true);
// Create a new instance Autocad.
var obj = Activator.CreateInstance(t, true);
// No need for casting with dynamics
_application = obj;
}
public static void EnsureAutoCadIsRunning(string classId)
{
if (!string.IsNullOrEmpty(classId) && classId != _autocadClassId)
_autocadClassId = classId;
Log.Activity("Loading Autocad: {0}", _autocadClassId);
if (_application == null)
{
try
{
GetAutoCAD();
}
catch (COMException ex)
{
try
{
StartAutoCad();
}
catch (Exception e2x)
{
Log.Error(e2x);
ThrowComException(ex);
}
}
catch (Exception ex)
{
ThrowComException(ex);
}
}
}

When there are several versions of AutoCAD installed on a computer, creating an instance with the ProgID "AutoCAD.Application" will run the latest version started on this computer by the current user. If the version of the Interop assemblies used does not match the version that is starting, you'll get a System.InvalidCastException with an HRESULT 0x80004002 (E_NOINTERFACE).
In your specific case, the {070AA05D-DFC1-4E64-8379-432269B48B07} IID in your error message is the GUID for the AcadApplicationinterface in R19 64-bit (AutoCAD 2013 & 2014). So there is an AutoCAD 2013 or 2014 that is starting, and you cannot cast this COM object to a 2015 type because 2015 is R20 (not binary compatible).
To avoid that, you can add a specific version to your ProgID (like "AutoCAD.Application.20" for AutoCAD 2015 (R20.0) to 2016 (R20.1)) to start the version matching your Interop assemblies or you can use late binding (eg. remove your references to Autodesk.AutoCAD.Interop* and use the dynamic keyword instead of the AutoCAD types).
In the last case, you will lost autocompletion, but your program will work with all the versions of AutoCAD.
Check also 32-bit vs 64-bit because TypeLib/Interop assemblies are not the same.

I open the application in a much straight-forward way. First, be sure to reference the correct type library. The one I am using is AutoCAD 2014 Type Library, located at:
c:\program files\common files\autodesk shared\acax19enu.tlb
To initialize the application:
using AutoCAD;
namespace test
{
class Program
{
static void Main(string[] args)
{
AutoCAD.AcadApplication app;
app = new AcadApplication();
app.Visible = true;
Console.Read();
}
}
}

Try this:
"sourcefile" is the original file
"newfile" is the new file
[CommandMethod("ModifyAndSaveas", CommandFlags.Redraw | CommandFlags.Session)]
public void ModifyAndSaveAs()
{
Document acDoc = Application.DocumentManager.Open(sourcefile);
Database acDB = acDoc.Database;
Transaction AcTran = acDoc.Database.TransactionManager.StartTransaction();
using (DocumentLock acLckDoc = acDoc.LockDocument())
{
using (AcTran)
{
BlockTable acBLT = (BlockTable)AcTran.GetObject(acDB.BlockTableId, OpenMode.ForRead);
BlockTableRecord acBLTR = (BlockTableRecord)AcTran.GetObject(acBLT[BlockTableRecord.ModelSpace], OpenMode.ForRead);
var editor = acDoc.Editor;
var SelectionSet = editor.SelectAll().Value;
foreach (ObjectId id in SelectionSet.GetObjectIds())
{
Entity ent = AcTran.GetObject(id, OpenMode.ForRead) as Entity;
//modify entities
}
AcTran.Commit();
}
}
acDB.SaveAs(newfile, DwgVersion.AC1021);
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace Tekkit
{
class Program
{
static void Main(string[] args)
{
//make sure to add last 2 using statements
ProcessStartInfo start = new ProcessStartInfo("calc.exe");
Process.Start(start);//starts the process
}
}
}

Using Microsoft.Build.Evaluation to publish a database project (.sqlproj)

I need to be able to publish an SSDT project programmatically. I am looking at using Microsoft.Build to do so but can not find any documentation. It seems pretty simple to create the .dacpac, but how would I either publish to an existing database or at the very least to a .sql file. The idea is to have it do what it does when I right click on the project and select publish. It should compare with a selected database and generate an upgrade script.
This is what I have so far to create the .dacpac:
partial class DBDeploy
{
Project project;
internal void publishChanges()
{
Console.WriteLine("Building project " + ProjectPath);
Stopwatch sw = new Stopwatch();
sw.Start();
project = ProjectCollection.GlobalProjectCollection.LoadProject(ProjectPath);
project.Build();
//at this point the .dacpac is built and put in the debug folder for the project
sw.Stop();
Console.WriteLine("Project build Complete. Total time: {0}", sw.Elapsed.ToString());
}
}
Essentially I am trying to do what this MSBuild Example shows but in code.
Sorry that this is all I have. The doecumentation on the Build classes is very poor. Any help would be appreciated.
Thanks.

I had to do something similar to this because VSDBCMD which we previously used does not deploy to SQL Server 2012 and we needed to support it. What I found was the Microsoft.SqlServer.Dac assembly which seems to come as part of the SQL Server data tools (http://msdn.microsoft.com/en-us/data/tools.aspx)
When you run this on the client machine you will need the full version of the .NET 4 framework and the SQL CLR types and SQL T-SQL ScriptDOM pack found here: http://www.microsoft.com/en-us/download/details.aspx?id=29065
Code below is from a mockup I made for testing the new deployment method and deploys a given .dacpac file
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SqlServer.Dac;
using System.IO;
namespace ConsoleApplication3
{
class Program
{
private static TextWriter output = new StreamWriter("output.txt", false);
static void Main(string[] args)
{
Console.Write("Connection String:");
//Class responsible for the deployment. (Connection string supplied by console input for now)
DacServices dbServices = new DacServices(Console.ReadLine());
//Wire up events for Deploy messages and for task progress (For less verbose output, don't subscribe to Message Event (handy for debugging perhaps?)
dbServices.Message += new EventHandler<DacMessageEventArgs>(dbServices_Message);
dbServices.ProgressChanged += new EventHandler<DacProgressEventArgs>(dbServices_ProgressChanged);
//This Snapshot should be created by our build process using MSDeploy
Console.WriteLine("Snapshot Path:");
DacPackage dbPackage = DacPackage.Load(Console.ReadLine());
DacDeployOptions dbDeployOptions = new DacDeployOptions();
//Cut out a lot of options here for configuring deployment, but are all part of DacDeployOptions
dbDeployOptions.SqlCommandVariableValues.Add("debug", "false");
dbServices.Deploy(dbPackage, "trunk", true, dbDeployOptions);
output.Close();
}
static void dbServices_Message(object sender, DacMessageEventArgs e)
{
output.WriteLine("DAC Message: {0}", e.Message);
}
static void dbServices_ProgressChanged(object sender, DacProgressEventArgs e)
{
output.WriteLine(e.Status + ": " + e.Message);
}
}
}
This seems to work on all versions of SQL Server from 2005 and up. There is a similar set of objects available in Microsoft.SqlServer.Management.Dac, however I believe this is in the previous version of DACFx and is not included in the latest version. So use the latest version if you can.

We need a way tell msbuild how and where to publish. Open your project in Visual Studio and begin to Publish it. Enter all needed info in the dialog, including your DB connection info and any custom SQLCMD variable values. Save Profile As... to a file, e.g. Northwind.publish.xml. (You may then Cancel.) Now we can use this and the project file to build and publish:
// Create a logger.
FileLogger logger = new FileLogger();
logger.Parameters = #"logfile=Northwind.msbuild.log";
// Set up properties.
var projects = ProjectCollection.GlobalProjectCollection;
projects.SetGlobalProperty("Configuration", "Debug");
projects.SetGlobalProperty("SqlPublishProfilePath", #"Northwind.publish.xml");
// Load and build project.
var dbProject = ProjectCollection.GlobalProjectCollection.LoadProject(#"Northwind.sqlproj");
dbProject.Build(new[]{"Build", "Publish"}, new[]{logger});
This can take awhile and may appear to get stuck. Be patient. :)

You should use SqlPackage.exe to publish your dacpac.
SqlPackage.exe
/Action:Publish
/SourceFile:C:/file.dacpac
/TargetConnectionString:[Connection string]
Also instead of passing too many parameters you could save your settings into DAC Publish Profile (this can be done from visual studio)

I wanted to build and publish a database based on a sqlproj file and log helpful information to console. Here's what I arrived at:
using Microsoft.Build.Framework;
using Microsoft.Build.Execution;
public void UpdateSchema() {
var props = new Dictionary<string, string> {
{ "UpdateDatabase", "True" },
{ "PublishScriptFileName", "schema-update.sql" },
{ "SqlPublishProfilePath", "path/to/publish.xml") }
};
var projPath = "path/to/database.sqlproj";
var result = BuildManager.DefaultBuildManager.Build(
new BuildParameters { Loggers = new[] { new ConsoleLogger() } },
new BuildRequestData(new ProjectInstance(projPath, props, null), new[] { "Publish" }));
if (result.OverallResult == BuildResultCode.Success) {
Console.WriteLine("Schema update succeeded!");
}
else {
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Schema update failed!");
Console.ResetColor();
}
}
private class ConsoleLogger : ILogger
{
public void Initialize(IEventSource eventSource) {
eventSource.ErrorRaised += (sender, e) => {
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(e.Message);
Console.ResetColor();
};
eventSource.MessageRaised += (sender, e) => {
if (e.Importance != MessageImportance.Low)
Console.WriteLine(e.Message);
};
}
public void Shutdown() { }
public LoggerVerbosity Verbosity { get; set; }
public string Parameters { get; set; }
}
This is for .NET 4 and above. Be sure and include assembly references to Microsoft.Build and Microsoft.Build.Framework.