We Keep Coding

Adding elements to model space the correct way using .NET API

Method One
_AcDb.Line oLine = new _AcDb.Line(ptStart, ptEnd);
AddToModelSpace("PLOT", oLine);
Where AddToModelSpace is:
public static void AddToModelSpace(string strLayer, _AcDb.Entity oEntity)
{
_AcAp.Document acDoc = _AcAp.Application.DocumentManager.MdiActiveDocument;
_AcDb.Database acCurDb = acDoc.Database;
_AcEd.Editor ed = acDoc.Editor;
using (_AcDb.BlockTable bt = acCurDb.BlockTableId.GetObject(_AcDb.OpenMode.ForRead) as _AcDb.BlockTable)
using (_AcDb.BlockTableRecord ms = bt[_AcDb.BlockTableRecord.ModelSpace].GetObject(_AcDb.OpenMode.ForWrite) as _AcDb.BlockTableRecord)
ms.AppendEntity(oEntity);
oEntity.Layer = strLayer;
oEntity.Dispose();
}
Method Two
// Get the current document and database
_AcAp.Document docActive = _AcAp.Application.DocumentManager.MdiActiveDocument;
_AcDb.Database docDB = docActive.Database;
// Start a transaction
using (_AcDb.Transaction acTrans = docDB.TransactionManager.StartTransaction())
{
// Open the Block table for read
_AcDb.BlockTable acBlkTbl;
acBlkTbl = acTrans.GetObject(docDB.BlockTableId,
_AcDb.OpenMode.ForRead) as _AcDb.BlockTable;
// Open the Block table record Model space for write
_AcDb.BlockTableRecord acBlkTblRec;
acBlkTblRec = acTrans.GetObject(acBlkTbl[_AcDb.BlockTableRecord.ModelSpace],
_AcDb.OpenMode.ForWrite) as _AcDb.BlockTableRecord;
// Create line
using (_AcDb.Line acLine = new _AcDb.Line(ptStart, ptEnd))
{
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acLine);
acTrans.AddNewlyCreatedDBObject(acLine, true);
}
// Save the new object to the database
acTrans.Commit();
}
I have used AddToModelSpace in my project so I hope it is fine!

Method Two is the way Autodesk recommends in the developer's documentation (you can read this section).
In Method One, you use the ObjectId.GetObject() method to open the BlockTable and the model space 'BlockTableRecord'. This method uses the top transaction to open object which means that there's an active transaction you should use to add the newly created entity. You can get it with Database.TransactionManager.TopTransaction. If you don't want to use a transaction at all, you have to use the "for advanced use only" ObjectId.Open() method.
A Method Three should be using some extension methods to be called from within a transaction. Here's a simplified (non error checking) extract of the ones I use.
static class ExtensionMethods
{
public static T GetObject<T>(
this ObjectId id,
OpenMode mode = OpenMode.ForRead,
bool openErased = false,
bool forceOpenOnLockedLayer = false)
where T : DBObject
{
return (T)id.GetObject(mode, openErased, forceOpenOnLockedLayer);
}
public static BlockTableRecord GetModelSpace(this Database db, OpenMode mode = OpenMode.ForRead)
{
return SymbolUtilityServices.GetBlockModelSpaceId(db).GetObject<BlockTableRecord>(mode);
}
public static ObjectId Add (this BlockTableRecord owner, Entity entity)
{
var tr = owner.Database.TransactionManager.TopTransaction;
var id = owner.AppendEntity(entity);
tr.AddNewlyCreatedDBObject(entity, true);
return id;
}
}
Using example:
using (var tr = db.TransactionManager.StartTransaction())
{
var line = new Line(startPt, endPt) { Layer = layerName };
db.GetModelSpace(OpenMode.ForWrite).Add(line);
tr.Commit();
}

Authenticating Website Members as Users in CKFinder v3

Before beginning this question, I should point out that my knowledge of ASP.NET & C# is pretty much nil.
I'm in the process of trying to integrate the ASP.NET version of CKFinder v3 into a site built in a different language and all is going well so far; I have everything setup as I want it and it's working when I grant unrestricted access to CKF but I'm stuck at the point now of trying to restrict access to it by authenticating only certain members of my site to use it. All the pages that CKFinder appears on on my site are only accessible by those certain members but I need an extra level of security if, for example, anyone figures out the direct path to my "ckfinder.html" file.
In the ASP version of CKFinder, I simply added this line in the function that checks my member's privileges, where isEditor was a boolean whose value was assigned per member based on information from my database:
session("accessckf")=isEditor
and then edited the CheckAuthentication() function in CKFinder's "config.asp" file to read:
function CheckAuthentication()
CheckAuthentication=session("accessckf")
end function
Reading through this "Howto", authentication seems to be much more complex in v3 but, after a lot of trial and error and some help from Lesiman, I created this C# file, which is located in my CKF directory:
<%#page codepage="65001" debug="true" language="c#" lcid="6153"%>
<%#import namespace="CKSource.CKFinder.Connector.Core"%>
<%#import namespace="CKSource.CKFinder.Connector.Core.Authentication"%>
<%#import namespace="CKSource.CKFinder.Connector.Core.Builders"%>
<%#import namespace="CKSource.CKFinder.Connector.Host.Owin"%>
<%#import namespace="Owin"%>
<%#import namespace="System.Data.Odbc"%>
<%#import namespace="System.Threading"%>
<%#import namespace="System.Threading.Tasks"%>
<script runat="server">
public void Configuration(IAppBuilder appBuilder){
var connectorBuilder=ConfigureConnector();
var connector=connectorBuilder.Build(new OwinConnectorFactory());
appBuilder.Map("/path/to/connector",builder=>builder.UseConnector(connector));
}
public ConnectorBuilder ConfigureConnector(){
var connectorBuilder=new ConnectorBuilder();
connectorBuilder.SetAuthenticator(new MyAuthenticator());
return connectorBuilder;
}
public class MyAuthenticator:IAuthenticator{
public Task<IUser> AuthenticateAsync(ICommandRequest commandRequest,CancellationToken cancellationToken){
var domain=HttpContext.Current.Request.Url.Host;
var cookie=HttpContext.Current.Request.Cookies[urlDomain];
var password="";
var username="";
var user=new User(false,null);
if (cookie!=null){
if (cookie["username"]!=null)
username=cookie["username"];
if (cookie["password"]!=null)
password=cookie["password"];
if(username!=""&&password!=""){
var connection=new OdbcConnection("database=[database];driver=MySQL;pwd=[pwd];server=[server];uid=[uid];");
connection.Open();
OdbcDataReader records=new OdbcCommand("SELECT ISEDITOR FROM MEMBERS WHERE USERNAME='"+username+"' AND PASSWORD='"+password+"'",connection).ExecuteReader();
if(records.HasRows){
records.Read();
bool isEditor=records.GetString(0)=="1";
var roles="member";
if(isEditor)
roles="editor,member";
user=new User(isEditor,roles.Split(','));
}
records.Close();
connection.Close();
}
}
return Task.FromResult((IUser)user);
}
}
</script>
Loading that page produces no errors (which doesn't necessarily mean it's working as trying to write anything to screen from within the public class doesn't work, for some reason) so now I'm at the stage of somehow checking that file for authentication.
Originally, I had tried loading it via XMLHttp from within my function that checks membership privileges for the site but, as I suspected and as Lesmian confirmed, that wouldn't work. After more trial & error, I added code to check website member privileges to the C# file, which leads me to where I am now: stuck!
What do I need to edit within CKFinder in order to have it use this custom file to check whether or not a user is authenticated?

First you'll need a connector between the ASP's Session and CKFinder's .Net authenticator. Here's an example that serializes ASP Session contents into JSON.
Put the connector.asp into a publicly accessible location. http://myaspwebsite.com/connector.asp for example.
connector.asp
<%#Language=VBScript CodePage=65001%>
<% Option Explicit %>
<!--#include file="JSON.asp"-->
<%
' obtain JSON.asp from https://github.com/tugrul/aspjson/archive/master.zip
' just for testing, must be removed in the production environment
Session("isEditor") = True
Session("isMember") = True
' only local requests allowed
' instead of local and remote ip comparison, a secret key can be used
If Request.ServerVariables("LOCAL_ADDR") <> Request.ServerVariables("REMOTE_ADDR") Then
Response.Status = "403 Forbidden"
Response.End
End If
Response.ContentType = "application/json"
Response.Charset = "utf-8"
Dim JSONObject, Key
Set JSONObject = jsObject()
For Each Key In Session.Contents
If Not IsObject(Session.Contents(Key)) Then 'skip the objects cannot be serialized
JSONObject(Key) = Session.Contents(Key)
End If
Next
JSONObject.Flush
%>
CKFinder 3.3.0 comes with a default connector which can be found in /ckfinder/bin/CKSource.CKFinder.Connector.WebApp.dll, remove it.
Examine the following program and remember to replace builder.Map("/connector", SetupConnector); and new Uri("http://myaspwebsite.com/connector.asp"); with your own values.
It simply authenticates the users by checking ASP Session varaibles isEditor and isMember via connector.asp and finally claims the roles editor , member or none.
I assume that you have configured the roles editor and member in the web.config.
Then put the Shaggy.cs into /ckfinder/App_Code. Create App_Code directory if not exist. .Net files in this folder will be compiled on the fly.
For more information have a look at Shared Code Folders in ASP.NET Web Projects
Shaggy.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Owin.Security;
using Microsoft.Owin.Security.Cookies;
using Newtonsoft.Json.Linq;
using Owin;
[assembly: Microsoft.Owin.OwinStartup(typeof(CKSource.CKFinder.Connector.Shaggy.Startup))]
namespace CKSource.CKFinder.Connector.Shaggy
{
using FileSystem.Local;
using FileSystem.Dropbox;
using Core;
using Core.Authentication;
using Config;
using Core.Builders;
using Core.Logs;
using Host.Owin;
using Logs.NLog;
using KeyValue.EntityFramework;
public class Startup
{
public void Configuration(IAppBuilder builder)
{
LoggerManager.LoggerAdapterFactory = new NLogLoggerAdapterFactory();
RegisterFileSystems();
builder.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = "ApplicationCookie",
AuthenticationMode = AuthenticationMode.Active
});
//replace connector path with yours
builder.Map("/connector", SetupConnector);
}
private static void RegisterFileSystems()
{
FileSystemFactory.RegisterFileSystem<LocalStorage>();
FileSystemFactory.RegisterFileSystem<DropboxStorage>();
}
private static void SetupConnector(IAppBuilder builder)
{
var keyValueStoreProvider = new EntityFrameworkKeyValueStoreProvider("CacheConnectionString");
var authenticator = new ShaggysAuthenticator();
var connectorFactory = new OwinConnectorFactory();
var connectorBuilder = new ConnectorBuilder();
var connector = connectorBuilder
.LoadConfig()
.SetAuthenticator(authenticator)
.SetRequestConfiguration(
(request, config) =>
{
config.LoadConfig();
config.SetKeyValueStoreProvider(keyValueStoreProvider);
})
.Build(connectorFactory);
builder.UseConnector(connector);
}
}
public class ShaggysAuthenticator : IAuthenticator
{
// this method makes an http request on the background to gather ASP's all session contents and returns a JSON object
// if the request contains ASP's session cookie(s)
private static JObject GetAspSessionState(ICommandRequest requestContext)
{
// building Cookie header with ASP's session cookies
var aspSessionCookies = string.Join(";",
requestContext.Cookies.Where(cookie => cookie.Key.StartsWith("ASPSESSIONID"))
.Select(cookie => string.Join("=", cookie.Key, cookie.Value)));
if (aspSessionCookies.Length == 0)
{
// logs can be found in /ckfinder/App_Data/logs
LoggerManager.GetLoggerForCurrentClass().Info("No ASP session cookie found");
// don't make an extra request to the connector.asp, there's no session initiated
return new JObject();
}
//replace this URL with your connector.asp's
var publicAspSessionConnectorUrl = new Uri("http://myaspwebsite.com/connector.asp");
var localSafeAspSessionConnectorUrl = new UriBuilder(publicAspSessionConnectorUrl) { Host = requestContext.LocalIpAddress };
using (var wCli = new WebClient())
try
{
wCli.Headers.Add(HttpRequestHeader.Cookie, aspSessionCookies);
wCli.Headers.Add(HttpRequestHeader.Host, publicAspSessionConnectorUrl.Host);
return JObject.Parse(wCli.DownloadString(localSafeAspSessionConnectorUrl.Uri));
}
catch (Exception ex) // returning an empty JObject object in any fault
{
// logs can be found in /ckfinder/App_Data/logs
LoggerManager.GetLoggerForCurrentClass().Error(ex);
return new JObject();
}
}
public Task<IUser> AuthenticateAsync(ICommandRequest commandRequest, CancellationToken cancellationToken)
{
var aspSessionState = GetAspSessionState(commandRequest);
var roles = new List<string>();
var isEditor = aspSessionState.GetNullSafeValue("isEditor", false);
var isMember = aspSessionState.GetNullSafeValue("isMember", false);
if (isEditor) roles.Add("editor");
if (isMember) roles.Add("member");
var isAuthenticated = isEditor || isMember;
var user = new User(isAuthenticated, roles);
return Task.FromResult((IUser)user);
}
}
public static class JObjectExtensions
{
// an extension method to help case insensitive lookups with a default value to get avoid NullReferenceException
public static T GetNullSafeValue<T>(this JObject jobj, string key, T defaultValue = default(T))
{
dynamic val = jobj.GetValue(key, StringComparison.OrdinalIgnoreCase);
if (val == null) return defaultValue;
return (T)val;
}
}
}
Now you should have a working CKFinder connector. Change the logic in the method AuthenticateAsync if you need and see how CKFinder handles your Classic ASP membership management.

Did you setup your custom authentication provider with ConnectorBuilder?
public ConnectorBuilder ConfigureConnector()
{
var connectorBuilder = new ConnectorBuilder();
connectorBuilder.SetAuthenticator(new MyAuthenticator());
return connectorBuilder;
}
You can find full example here: http://docs.cksource.com/ckfinder3-net/configuration_by_code.html.
UPDATE
Additionally you should register ConnectorBuilder inside Startup class to add it to request pipeline:
public void Configuration(IAppBuilder appBuilder)
{
var connectorBuilder = ConfigureConnector();
var connector = connectorBuilder.Build(new OwinConnectorFactory());
appBuilder.Map("/CKFinder/connector", builder => builder.UseConnector(connector));
}
All this is from a documentation link I've provided before.

How to prevent fill in values when saving over CSOM to a choice field

I am writing some ETL code to move data between an external system and SharePoint Online.
I am using the nuget package Microsoft.SharePointOnline.CSOM to communicate with SP in C#.
I am using the following code to update my field values.
spListItem[fieldName] = "Test Value";
spListItem.Update();
spClientContext.ExecuteQuery();
I noticed with Choice fields, if I save a non existing value SharePoint does not complain and just adds the value even if Allow 'Fill-in' choices is set to NO.
Is there a validate function anywhere in SharePoint? I saw some methods like ValidateUpdateListItem, but they didn't seem to do what I needed.

You could consider to validate choice field value before saving its value as demonstrated below:
static class ListItemExtensions
{
public static bool TryValidateAndUpdateChoiceFieldValue(this ListItem item, string fieldName, string fieldValue)
{
var ctx = item.Context;
var field = item.ParentList.Fields.GetByInternalNameOrTitle(fieldName);
ctx.Load(field);
ctx.ExecuteQuery();
var choiceField = ctx.CastTo<FieldChoice>(field);
if (!choiceField.FillInChoice)
{
var allowedValues = choiceField.Choices;
if (!allowedValues.Contains(fieldValue))
{
return false;
}
}
item.Update();
return true;
}
}
In that case the ListItem will be updated once the validation is
succeeded.
Usage
using (var ctx = new ClientContext(webUri))
{
var list = ctx.Web.Lists.GetByTitle(listTitle);
var listItem = list.GetItemById(itemId);
if(listItem.TryValidateAndUpdateChoiceFieldValue(fieldName,fieldValue))
ctx.ExecuteQuery();
}

How to change sql server connection string dynamically in service stack

I am working on Asp.Net MVC and ServiceStack. I am trying to connect to the sql server database using servicestack ormlite. like
var connectionString = ConfigurationManager.ConnectionStrings["AppDb"].ConnectionString;
container.Register<IDbConnectionFactory>(
new OrmLiteConnectionFactory(connectionString,
SqlServerOrmLiteDialectProvider.Instance)
{
ConnectionFilter = x => new ProfiledDbConnection(x, Profiler.Current)
});
I am able to connect to database, But in my scenario i need to change the connection string dynamically.. That means i need to read the content from Request body and prepare a connection string. In servicestack we configure sql server connection string in AppHost class that means at app start. But i need to set the connection string in my controller. I have tried like place it in session and use that session in ClassLibrary SeviceBase class. But I am unable to use asp.Net sessions in class libraries.How to change sql server connection string dynamically in service stack. so please guide me.

I would change the IDbConnectionFactory to be reused in the scope of the request, instead of the current default, which shares it among all requests.
I have also created a static method (GetDatabaseConnectionFactory()) which returns the instance of OrmLiteConnectionFactory to the IoC container with the custom connection string.
To determine the connection string, I have used a request filter, which simply reads the parameter connectionstring. If it is not set it will use a default value. This value is then
set in the RequestContext.Items collection, which can be accessed by the GetDatabaseConnectionFactory() method.
Remember exposing connection strings this way is dangerous, always check any connection string values thoroughly to ensure they don't contain malicious values. i.e. Ensure they don't try to connect to administrative databases, or a different server, or change default setting overrides etc.
In your AppHost:
ServiceStack V3:
public override void Configure(Container container)
{
container.Register<IDbConnectionFactory>(c => GetDatabaseConnectionFactory()).ReusedWithin(ReuseScope.Request);
RequestFilters.Add((req,res,obj) => {
// Default value
var defaultConnectionString = ConfigurationManager.ConnectionStrings["AppDb"].ConnectionString;
// Get the connection string from the connectionstring parameter, or use default
var dbConnectionString = req.GetParam("connectionstring") ?? defaultConnectionString;
// You should perform some checks here to make sure the connectionstring isn't something it shouldn't be
// ...
// Save the connection string to the HostContext.Instance.Items collection, so we can read it later
HostContext.Instance.Items.Add("ConnectionString", dbConnectionString);
});
}
public static IDbConnectionFactory GetDatabaseConnectionFactory()
{
// Read the connection string from our HostContext Items
var dbConnectionString = HostContext.Instance.Items["ConnectionString"];
if(dbConnectionString == null)
throw new Exception("Connection string has not been set");
// Return the connection factory for the given connection string
return new OrmLiteConnectionFactory(dbConnectionString, SqlServerOrmLiteDialectProvider.Instance) {
ConnectionFilter = x => new ProfiledDbConnection(x, Profiler.Current)
});
}
Usings:
using System;
using Funq;
using ServiceStack.ServiceInterface;
using ServiceStack.ServiceHost;
using ServiceStack.WebHost.Endpoints;
using ServiceStack.OrmLite;
using ServiceStack.Common;
ServiceStack V4:
public override void Configure(Container container)
{
container.Register<IDbConnectionFactory>(c => GetDatabaseConnectionFactory()).ReusedWithin(ReuseScope.Request);
GlobalRequestFilters.Add((req,res,obj) => {
// Default value
var defaultConnectionString = ConfigurationManager.ConnectionStrings["AppDb"].ConnectionString;
// Get the connection string from the connectionstring parameter, or use default
var dbConnectionString = req.GetParam("connectionstring") ?? defaultConnectionString;
// You should perform some checks here to make sure the connectionstring isn't something it shouldn't be
// ...
// Save the connection string to the RequestContext.Items collection, so we can read it later
HostContext.RequestContext.Items.Add("ConnectionString", dbConnectionString);
});
}
public static IDbConnectionFactory GetDatabaseConnectionFactory()
{
// Read the connection string from our Items
var dbConnectionString = HostContext.RequestContext.Items["ConnectionString"];
if(dbConnectionString == null)
throw new Exception("Connection string has not been set");
// Return the connection factory for the given connection string
return new OrmLiteConnectionFactory(dbConnectionString, SqlServerOrmLiteDialectProvider.Instance) {
ConnectionFilter = x => new ProfiledDbConnection(x, Profiler.Current)
});
}
Usings:
using System;
using Funq;
using ServiceStack;
using ServiceStack.Data;
using ServiceStack.OrmLite;
using ServiceStack.OrmLite.Sqlite;

Reading Group Policy Settings using C#

How do I go about iterating over available and/or set settings in a given GPO (using name or GUID) in an AD domain? Without having to export to XML/HTML using powershell, etc.
I'm using C# (.NET 4.0).

That question got me hyped so I went to research it. So a +1
Some solutions I found from the top being the best to bottom being the worst
A good explanation with an example and example script!
This one, tells you to go through the registry but you gotta figure out who to access the AD
Pinvoke: Queries for a group policy override for specified power settings.

I had a similar problem, and didn't want to download and install the Microsoft GPO library (Microsoft.GroupPolicy.Management). I wanted to do it all with System.DirectoryServices. It took a little digging, but it can be done.
First retrieve your container using DirectorySearcher. You'll need to have already opened a directory entry to pass into the searcher. The filter you want is:
string filter = "(&" + "(objectClass=organizationalUnit)" + "(OU=" + container + "))";
and the property you're interested in is named "gPLink", so create an array with that property in it:
string[] requestProperties = { "gPLink" };
Now retrieve the results, and pull out the gPLink, if available.
using (var searcher = new DirectorySearcher(directory, filter, properties, SearchScope.Subtree))
{
SearchResultCollection results = searcher.FindAll();
DirectoryEntry entry = results[0].GetDirectoryEntry();
string gpLink = entry.Properties["gPLink"].Value;
If gpLink is null, there is no GPO associated with the container (OU).
Otherwise, gpLink will contain a string such as this:
"[LDAP://cn={31B2F340-016D-11D2-945F-00C04FB984F9},cn=policies,cn=system,DC=Test,DC=Domain;0]"
In the text above, you can see a CN for the GPO. All we need to do now is retrieve the GPO from the DC.
For that, we use a filter that looks like this:
string filter = "(&" +
"(objectClass=groupPolicyContainer)" +
"(cn={31B2F340-016D-11D2-945F-00C04FB984F9}))";
You'll want to create a Properties array that include the following:
Properties = { "objectClass", "cn", "distinguishedName", "instanceType", "whenCreated",
"whenChanged", "displayName", "uSNCreated", "uSNChanged", "showInAdvancedViewOnly",
"name", "objectGUID", "flags", "versionNumber", "systemFlags", "objectCategory",
"isCriticalSystemObject", "gPCFunctionalityVersion", "gPCFileSysPath",
"gPCMachineExtensionNames", "dSCorePropagationData", "nTSecurityDescriptor" };
Now use DirectorySearcher to retrieve the GPO. You'll get back a DirectoryEntry in the results that contains all of the above fields in the Properties collection. Some are COM objects, so you'll have to handle those appropriately.

Here is a better and more complete example then above.
class Program
{
static void Main(string[] args)
{
DirectoryEntry rootDse = new DirectoryEntry("LDAP://rootDSE");
DirectoryEntry root = new DirectoryEntry("GC://" + rootDse.Properties["defaultNamingContext"].Value.ToString());
DirectorySearcher searcher = new DirectorySearcher(root);
searcher.Filter = "(objectClass=groupPolicyContainer)";
foreach (SearchResult gpo in searcher.FindAll())
{
var gpoDesc = gpo.GetDirectoryEntry().Properties["distinguishedName"].Value.ToString();
Console.WriteLine($"GPO: {gpoDesc}");
DirectoryEntry gpoObject = new DirectoryEntry($"LDAP://{gpoDesc}");
try
{
Console.WriteLine($"DisplayName: {gpoObject.Properties["displayName"].Value.ToString()}");
}
catch
{
}
try
{
Console.WriteLine($"PCFileSysPath: {gpoObject.Properties["gPCFileSysPath"].Value.ToString()}");
}
catch
{
}
try
{
Console.WriteLine($"VersionNumber: {gpoObject.Properties["versionNumber"].Value.ToString()}");
}
catch
{
}
try
{
Console.WriteLine($"UserExtensionNames: {gpoObject.Properties["gPCUserExtensionNames"].Value.ToString()}");
}
catch
{
}
try
{
Console.WriteLine($"MachineExtensionNames: {gpoObject.Properties["gPCMachineExtensionNames"].Value.ToString()}");
}
catch
{
}
try
{
Console.WriteLine($"PCFunctionality: {gpoObject.Properties["gPCFunctionalityVersion"].Value.ToString()}");
}
catch
{
}
}
Console.ReadKey();
}
}

UPDATED: Working copy. You can now use c# to get read and parse a given GPO without having to use Powershell or write anything to disk.
using Microsoft.GroupPolicy;
var guid = new Guid("A7DE85DE-1234-F34D-99AD-5AFEDF7D7B4A");
var gpo = new GPDomain("Centoso.local");
var gpoData = gpo.GetGpo(guid);
var gpoXmlReport = gpoData.GenerateReport(ReportType.Xml).ToString();
using (XmlReader reader = XmlReader.Create(new StringReader(gpoXmlReport)))
{
string field;
while (reader.MoveToNextAttribute())
{
foreach (string attr in attributes)
{
// do something
}
}
}
This uses the Group Policy Management Console (GPMC) tools:
https://msdn.microsoft.com/en-us/library/windows/desktop/aa814316(v=vs.85).aspx
Microsoft.GroupPolicy Namespace
https://msdn.microsoft.com/en-us/library/windows/desktop/microsoft.grouppolicy(v=vs.85).aspx