C#

//OBJECT OF MISSING "NULL VALUE"<br />
            Object oMissing = System.Reflection.Missing.Value;<br />
<br />
            //OBJECTS OF FALSE AND TRUE<br />
            Object oTrue = true;<br />
            Object oFalse = false;<br />
            DataRow row;<br />
<br />
            //CREATING OBJECTS OF WORD AND DOCUMENT<br />
            Word.Application oWord = new Word.Application();<br />
            Word.Document oWordDoc = new Word.Document();<br />
<br />
            //DEFINE FILE<br />
            openFileDialog.ShowDialog();<br />
            openFileDialog.Filter = "Word Template File (*.dot)|*.dot|Word File (*.doc)|*.doc|All files (*.*)|*.*";<br />
<br />
            //SETTING THE VISIBILITY TO TRUE<br />
            oWord.Visible = true;<br />
<br />
            //THE LOCATION OF THE TEMPLATE FILE ON THE MACHINE<br />
            Object oTemplatePath = openFileDialog.FileName;<br />
<br />
            //ADDING A NEW DOCUMENT FROM A TEMPLATE<br />
            oWordDoc = oWord.Documents.Add(ref oTemplatePath, ref oMissing, ref oMissing, ref oMissing);<br />
<br />
            bs_results.MoveFirst();<br />
            row = ((DataRowView)bs_results.Current).Row;<br />
<br />
            foreach (Word.Field myMergeField in oWordDoc.Fields)<br />
            {<br />
                String fieldtext = myMergeField.Code.Text;<br />
<br />
                if (fieldtext.StartsWith(" NEXT"))<br />
                {<br />
                    if (bs_results.Position == bs_results.Count-1) break;<br />
                    bs_results.MoveNext();<br />
                    row = ((DataRowView)bs_results.Current).Row;<br />
                    myMergeField.Code.Text = String.Empty;<br />
                }<br />
<br />
                if (fieldtext.Contains("firstname"))<br />
                {<br />
                    myMergeField.Select();<br />
                    oWord.Selection.TypeText(row["firstName"].ToString());<br />
                }<br />
                if (fieldtext.Contains("lastname"))<br />
                {<br />
                    myMergeField.Select();<br />
                    oWord.Selection.TypeText(row["lastName"].ToString());<br />
                }<br />
                if (fieldtext.Contains("cellphone"))<br />
                {<br />
                    myMergeField.Select();<br />
                    oWord.Selection.TypeText(row["phoneCell"].ToString());<br />
                }<br />
            }

D:\Visual Studio 2008\Projects\ConsoleApplication1\ConsoleApplication1\Program.cs(14,11): error CS0738: 'MyList.Foo' does not implement interface member 'MyList.IFoo.Abc()'. 'MyList.Foo.Abc()' cannot implement 'MyList.IFoo.Abc()' because it does not have the matching return type of 'object'.

public class MyList
{

    interface IFoo
    {
        object Abc();
    }

    class Foo : IFoo
    {
        public Foo()
        {

        }
        
        public List<int> Abc()
        {
            return new List<int>;
        }

    }

    static void Main()
    {
        Foo f = new Foo();
        return;
    }
}

class Program
{
   static void Main(string[] args)
   {
       Console.WriteLine("Program::Main");
       EventBroker.Current.FireLookupResource(null, EventArgs.Empty);

       Console.ReadLine();
   }
}

public class EventBroker
{
    private static readonly EventBroker _current = new EventBroker();
    public static EventBroker Current { get { return _current; } }

    public event EventHandler LookupResource;

    private EventBroker() { }

    public void FireLookupResource(object sender, EventArgs args)
    {
        Console.WriteLine("EventBroker::FireLookupResource");

        if (LookupResource != null)
           LookupResource(sender, args);
    }
}

public class ResourceBroker
{
    private static readonly ResourceBroker _current = new ResourceBroker();
    public static ResourceBroker Current { get { return _current; } }

    private ResourceBroker()
    {
        Console.Write("ResourceBroker::ResourceBroker");

        EventBroker.Current.LookupResource += EventBroker_LookupResource;
    }

    private static void EventBroker_LookupResource(object sender, EventArgs e)
    {
        Console.Write("ResourceBroker::EventBroker_LookupResource");
    }
}