throw ex;

throw;

string s = "Take this out";
s.Replace("this", "that");  //wrong

s = s.Replace("this", "that");  //correct

public static string GetCookieName(Cookie c)
{
 return c.Name;
}

static List<string> cookieList = new List<string>();
public static void AddToCookieList(Cookie c)
{
 cookieList.Add(c.Name);

}

 try
{
    //something
 File.Delete(blah);
}
catch{}

string s = "This ";
s += "is ";
s += "not ";
s += "the ";
s += "best ";
s += "way.";

StringBuilder sb = new StringBuilder();
sb.Append("This ");
sb.Append("is ");
sb.Append("much ");
sb.Append("better. ");

using (StreamReader reader=new StreamReader(file))
{
 //your code here

}

string val = Session["xyz"].ToString();

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using NHunspell;

namespace testWinForms87
{
   class CSpellCheck
   {
       public static void Test()
       {
           using (Hunspell hunspell = new Hunspell(@"fa_ir.aff", @"fa_ir.dic"))
           {
               bool correct = hunspell.Spell("دباق");
               if (correct)
                   MessageBox.Show("مشکلی نیست!");
               else
               {
                   List<string> suggestions = hunspell.Suggest("دباق");
                   string result = string.Empty;
                   foreach (string suggestion in suggestions)
                   {
                       result += suggestion + Environment.NewLine;
                   }

                   if (result != string.Empty)
                       MessageBox.Show(result,"لیست پیشنهادها");
               }
           }
       }
   }
}

public User[] GetGroupMembers(int groupId)
public List<User> GetGroupMembers(string groupName)

public List<User> GetGroupMembers(int groupId)
public List<User> GetGroupMembers(int id, int pageIndex, int pageSize)

public List<User> GetGroupMembers(int groupId)
public List<User> GetGroupMembers(int pageIndex, int pageSize, int groupId)

public List<User> GetGroupMembers(int groupId)
{
   return GetGroupMembers(groupId, 0, 10);
}

public List<User> GetGroupMembers(int groupId, int pageIndex, int pageSize)
{
   return GetGroupMembers(groupId, pageIndex, pageSize, SortOrder.Ascending);
}

public List<User> GetGroupMembers(int groupId, int pageIndex, int pageSize, SortOrder sortOrder)
{
   var query = new GroupQuery();
   query.GroupID = groupId;
   query.PageIndex = pageIndex;
   query.PageSize = pageSize;
   query.SortOrder = sortOrder;

   return GetGroupMembers(query);
}

public List<User> GetGroupMembers(GroupQuery groupQuery)
{
   // Actual implementation to get group members goes here
}

• GC, JIT
• C#
• Coherent Framework
• XSP….ASP+…ASP.NET!
• WinForms

• Mobile ASP.NET controls
• Built-in support for ODBC and Oracle databases.
• IPv6 support.

• ASP.NET for the Masses
  ○ Application Building Blocks
    § Parts, Authentication, Role Management, etc
  ○ Visual Web Developer
• Client Development
• ClickOnce!

• Windows CardSpace - Digital identity interface.
• Windows Presentation Foundation : WPF
  ○ Vector Graphics, Media and UI
  ○ Enters the age of UX
• Windows Communication Foundation : WCF
  ○ Unified messaging model
• Windows Workflow Foundation : WF
  ○ Coordinating work with durable applications

• Linq
• Expression Trees and Lamda Methods
• Extension Methods
• Paging Support for ADO.NET
• Managed Wrappers for WMI and AD
• Enhancements to WCF and WF
• System.CodeDom namespace
• ASP.NET AJAX
• WCF/WF
  ○ REST Services
  ○ Workflow Services
• Client
  ○ Sync
  ○ Client app services

• ASP.NET Dynamic Data
• ADO.NET
 ○ Entity Framework
 ○ Data Services (Astoria)
• WCF
 ○ AtomPub ServiceDocuments
• Client
 ○ Client Profile
 ○ Performance
   § Working set and startup time
• Silverlight 2
 ○ RTM end of 2008
 ○ Brings power of .NET to the web client
 ○ Media and RIA .NET platform

• Base Class Library Improvements
 ○ Managed Extensibility Framework
 ○ More Core Data Structures
 ○ I/O Improvements
• Parallel Computing
 ○ Task Parallel Library
 ○ Parallel Linq (PLINQ)
 ○ Coordination Data Structures (CDS)
• Client
 ○ WPF
  § Client Profile
  § Business Focused Controls
  § Win7 Advances (Multi-touch, etc)
 ○ ADO.NET
  § Entity Framework v2
    □ Code-First Development
    □ TDD Support
    □ Foreign-Key Support
 ○ ASP.NET
  § ASP.NET Dynamic Data Improvements
  § ASP.NET MVC
  § ASP.NET Dynamic Data for MVC
  § Extensible Caching Framework
 ○ WF & WCF
  § Fully Declarative Services
  § Workflow Enhancements
   □ New flowchart modeling
   □ Workflow Rules Integration
   □ … much more…
  § WCF Enhancements
   □ Durable Duplex
   □ WS-Discovery & UDP Channel
   □ In-Process Channel
  § RIA (Silverlight)
   □ Simplified N-tier development
   □ Business-focused framework