How to get role items in a K2 blackpearl role

In my last project , I got so many obstacles in development phase. One of most annoying thing I encountered is how to get role item in a K2 blackpearl role. After days of training with K2 guys from Singapore, finally I got the code. Here they are.

First, add this reference to the project you want to place the code.

using SourceCode.Security.UserRoleManager.Management;

Second, declare an instance of UserRoleManager like this :

private SourceCode.Security.UserRoleManager.Management.UserRoleManager _roleManager = new SourceCode.Security.UserRoleManager.Management.UserRoleManager();

Third, add a property like this (note that the connection string may vary according to your computer configuration)

public SourceCode.Security.UserRoleManager.Management.UserRoleManager RoleManager
        {
            get
            {
                string connString = string.Empty;

                if (_roleManager == null)
                    _roleManager = new UserRoleManager();

                _roleManager.CreateConnection();

                if (!_roleManager.Connection.IsConnected)
                {
                    connString = "Integrated=True;IsPrimaryLogin=True;Authenticate=True;EncryptedPassword=False;Host=BLACKPEARL;Port=5555";//Connection string to HostServer
                }

                _roleManager.Connection.Open(connString);

                return _roleManager;
            }
        }

Then , add a method to read the role items in a K2 blackpearl role (this method returns the role items in semicolon separated format, example: denallix\codi;denallix\anthony)

public string GetK2RoleUsers(string K2Role)
        {
            Role role = RoleManager.GetRole(K2Role);
            string sRoleName = "";

            foreach (UserItem UIDel in role.Include)
            {
                if (sRoleName.Equals(""))
                    sRoleName += UIDel.Name.Split(":".ToCharArray())[1];
                else
                    sRoleName += ";" + UIDel.Name.Split(":".ToCharArray())[1];
            }
            
            return sRoleName.ToLower();
        }

To make it clearer , I give a complete code how to use this in a server event code. In this example, I want to get all the role items in a K2 role named "IA" and place the result in K2 DataField named "DestinationApproval"

using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections;
using System.Drawing;
using SourceCode.KO;
using SourceCode.Workflow.Common.Extenders;
using hostContext = Project_5b686e4bb3d24c9b9dfa1d2ef7e5ffb5.EventItemContext_cd0b00f67cf744188529af119ccd3f6b;
using System.Xml;
using System.Xml.XPath;
using SourceCode.Security.UserRoleManager.Management;

namespace ExtenderProject_5b686e4bb3d24c9b9dfa1d2ef7e5ffb5
{
    public partial class EventItem_cd0b00f67cf744188529af119ccd3f6b : ICodeExtender<hostContext>
    {
        //Open Connection to RoleManager
        private SourceCode.Security.UserRoleManager.Management.UserRoleManager _roleManager = new SourceCode.Security.UserRoleManager.Management.UserRoleManager();
        public void Main(Project_5b686e4bb3d24c9b9dfa1d2ef7e5ffb5.EventItemContext_cd0b00f67cf744188529af119ccd3f6b K2)
        {
            string userIA = GetK2RoleUsers("IA");
            K2.ProcessInstance.DataFields["DestinationApproval"].Value = userIA;            
//you can ignore this code below, it's specific to business process of my module :)
            XmlDocument doc = new XmlDocument();
            string infopathFormName = K2.ProcessInstance.DataFields["InfopathFormName"].Value.ToString();
            string xmlString = K2.ProcessInstance.XmlFields[infopathFormName].Value;
            string xpathTempUser = K2.ProcessInstance.DataFields["XPathTempUser"].Value.ToString();            
            doc.LoadXml(xmlString);
            XmlNamespaceManager NamespaceManager = InitNamespaceManager(doc);
            XPathNavigator root = doc.CreateNavigator();
            XPathNavigator node = root.SelectSingleNode(xpathTempUser, NamespaceManager);
            node.SetValue(userIA);
            K2.ProcessInstance.XmlFields[infopathFormName].Value = doc.InnerXml;
            
        }
        public string GetK2RoleUsers(string K2Role)
        {
            Role role = RoleManager.GetRole(K2Role);
            string sRoleName = "";

            foreach (UserItem UIDel in role.Include)
            {
                if (sRoleName.Equals(""))
                    sRoleName += UIDel.Name.Split(":".ToCharArray())[1];
                else
                    sRoleName += ";" + UIDel.Name.Split(":".ToCharArray())[1];
            }
            
            return sRoleName.ToLower();
        }
        public SourceCode.Security.UserRoleManager.Management.UserRoleManager RoleManager
        {
            get
            {
                string connString = string.Empty;

                if (_roleManager == null)
                    _roleManager = new UserRoleManager();

                _roleManager.CreateConnection();

                if (!_roleManager.Connection.IsConnected)
                {
                    connString = "Integrated=True;IsPrimaryLogin=True;Authenticate=True;EncryptedPassword=False;Host=BLACKPEARL;Port=5555";//Connection string to HostServer
                }

                _roleManager.Connection.Open(connString);

                return _roleManager;
            }
        }
        public XmlNamespaceManager InitNamespaceManager(XmlDocument xmlDOMDoc)
        {
            XmlNamespaceManager xnmMan;

            xnmMan = new XmlNamespaceManager(xmlDOMDoc.NameTable);

            foreach (XmlAttribute nsAttr in xmlDOMDoc.DocumentElement.Attributes)
            {

                if (nsAttr.Prefix == "xmlns")

                    xnmMan.AddNamespace(nsAttr.LocalName, nsAttr.Value);

            }

            return xnmMan;

        }        
    }
}