C#

Could not load file or assembly CrystalDecisions.Windows.Forms.Version=13.0.2000.0

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.IO.FileNotFoundException: Could not load file or assembly 'CrystalDecisions.Windows.Forms, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. The system cannot find the file specified.


File name: 'CrystalDecisions.Windows.Forms, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304'
   at SimplyOutbound.Form1.InitializeComponent()
   at SimplyOutbound.Form1..ctor()
   at SimplyOutbound.ReportGenerator.btnView_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

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To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;

namespace WindowsFormsApplication1
{
    class MyPoint
    {
        public double x;
        public double y;
    }
    class Measurement
    {
        List<MyPoint> points = new List<MyPoint>();
        public void Add(MyPoint p)
        {
            points.Add(p);
        }
    }
    class Set
    {
        public Measurement CurrentM = null;
        List<Measurement> M = new List<Measurement>();
        public Measurement GetNewM()
        {
            Measurement m = new Measurement();
            /*
             * m.Field1 = ...;
             * m.Field2 = ...;
             * ...
             * m.FieldN = ...;
             */
            return m;

        }
        public void CreateMesurement()
        {
            CurrentM = GetNewM();
            M.Add(CurrentM);
        }
    }
    class Day
    {
        public Set CurrentS = null;
        List<Set> S = new List<Set>();
        public void OnSetCreation()
        {
            CurrentS = new Set();
            S.Add(CurrentS);
        }
        public void OnMeasureCreation()
        {
            CurrentS.CreateMesurement();
        }
        public void WriteData()
        {
            // saving all data to disk
        }
    }
    static class DaysConteiner
    {
        static public Day Active;

        static double Temperature;
        static bool IfThereIsAGapBetweenTempuratureValues = false;
        static bool IfThereIsSetTimeLimitElapsed = false;
        static bool IfNewDay = false;

        static void OnStartNewDay()
        {
            if (IfNewDay)
            {
                Active.WriteData();
                Active = new Day();
            }
        }
        static internal void OnDataFromCOMPortReceived()
        {
            /*
             * data processing
             * Temperature = ...;
             * IfThereIsAGapBetweenTempuratureValues = ...;
             * IfThereIsSetTimeLimitElapsed = ...;
             */


            /*
             * Sending data to Form by means of Invoke and so on
             */
            if (IfThereIsSetTimeLimitElapsed) Active.OnSetCreation();
            if (IfThereIsAGapBetweenTempuratureValues) Active.OnMeasureCreation();
            
            MyPoint p = new MyPoint();
            p.x = DateTime.Now.ToOADate();
            p.y = Temperature;
            Active.CurrentS.CurrentM.Add(p); 
            /* */
        }

    }
}

using System;
using System.IO;
using System.Xml;
using System.Xml.XPath;

namespace Core.Classes
{
    public class Configuration
    {
        public class ProgramClass
        {
            public string Id { get; set; }
            public string Name { get; set; }
            public string DefaultCurrency { get; set; }
        }

        public class ConnectionClass
        {
            public string Provider { get; set; }
            public string String { get; set; }
        }

        public ConnectionClass Connection { get; set; }


        public ProgramClass Program { get; set; }


        protected XPathNavigator nav = null;

        public Configuration()
        {
            this.Connection = new ConnectionClass();
            this.Program = new ProgramClass();
        }

        public bool Open(ProviderCollection providers, string filename)
        {
            if (!File.Exists(filename))
            {
                return false;
            }

            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(filename);
                this.nav = doc.CreateNavigator();


                return true;
            }
            catch
            {
                return false;
            }
        }

        public virtual bool Read()
        {
            try
            {
                this.nav = nav.SelectSingleNode("//connection");
                this.Connection.Provider = this.nav.GetAttribute("provider", "");
                this.Connection.String = this.nav.GetAttribute("connection_string", "");

                this.nav = nav.SelectSingleNode("//program");
                this.Program.Id = this.nav.GetAttribute("id", "");
                this.Program.Name = this.nav.GetAttribute("name", "");
                this.Program.DefaultCurrency = this.nav.GetAttribute("default_currency", "");

                return true;
            }
            catch
            {
                return false;
            }
        }
    }
}

public DropDownList GetCategoryList()
        {
            ArticleDataDataContext dc = new ArticleDataDataContext();

            DataBuddy db = new DataBuddy(dc.getAllCategories());

            List<string> result = db.EnumerateISingleResultAsString();

            DropDownList d = new DropDownList();

            d.ID = "ddCatList";
            d.ViewStateMode = ViewStateMode.Enabled;

            foreach (string item in result)
            {
                d.Items.Add(new ListItem(item, item, true));
            }

            return d;
        }

DropDownList dd = (DropDownList)this.FindControl("ddCatList");