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LINQPad – Cool Utility For LINQ
Maybe you know about this, but I saw it first few days a go. I officially in love. LINQPad is a cool little utility that was mainly created to allow you to test LINQ expressions and see them produce a  result and output the results in a nice easy to visualize format. It's great for running LINQ Queries without having to fire up Visual Studio. LINQPad is also a great way to learn LINQ: it comes preloaded with 200 examples from the book," C# 3.0 in a Nutshell " written by Joseph...
Posted 14 June 2008 02:24 PM by Maor David-Pur | with no comments
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Visual Studio 2008 and .NET Framework 3.5 Training Kit
Microsoft released a nice training kit (~126MB) (it's a real treasure!) for the latest technologies. This package covers a bunch of technologies and includes presentations, hands-on labs, and demos. This content is designed to help you learn how to utilize the Visual Studio 2008 features and a variety of framework technologies including: Visual Studio Tools for Office Visual Studio Team System Application Lifecycle Management C# 3.0 VB 9.0 LINQ WPF WCF WF Silverlight ASP.NET AJAX CardSpace Mobile...
Posted 29 March 2008 09:02 PM by Maor David-Pur | 1 comment(s)
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.NET Framework Source Code Available
It's here and you can give it a try now! To step through .NET Framework Source code, here's what you need to do. Install the Visual Studio 2008 QFE .  This Hotfix just updates a DLL that's part of the Visual Studio debugger that fetches the source files, more details on the download page. (64-bit users: read the description as there is a single manual step for 64-bit) Go into Tools > Options > Debugging > General and turn off " Enable Just My Code " and turn on...
Posted 19 January 2008 11:04 AM by Maor David-Pur | with no comments
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.NET Framework Multi Targeting in Visual Studio 2008
One of the great features in Visual Studio 2008 is the ".NET Framework Multi Targeting". This allows you to build applications targeting any of these frameworks using Visual Studio 2008: .NET Framework 2.0 - released with Visual Studio 2005 .NET Framework 3.0 - released with Windows Vista .NET Framework 3.5 - will release with Visual Studio Orcas After I built a project targeted .NET framework 2.0 I encountered problem on a machine with .NET framework 2.0 installed. It turns out that when...
Posted 17 October 2007 01:39 AM by Maor David-Pur | with no comments
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Query types using LINQ
It's great. It's so beautiful. I really like it. Reflecting types using LINQ. How can we do it? We can use Reflection of course, but with LINQ it shortest and simplest. Declare "Type" object , assign the class you want to query and query with LINQ. Example 1: To get all methods of a class: 1: Type tPerson = typeof (Person); 2: var methods = from method in tPerson.GetMethods() 3: select method; 4: 5: Console.WriteLine( "All methods:" ); 6: foreach (var m in methods) 7:...
Posted 01 October 2007 12:31 AM by Maor David-Pur | 1 comment(s)
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C# 3.0 Extension Methods
How many times have you written wrapper methods for objects that in reality you wished were part of the object itself?For example, we have the following method which returns the first and last char of a given string in upper case: 1: namespace MaorDavidsBlogExamples 2: { 3: public static class Extensions 4: { 5: public static string UpperFirstAndLast( string str) 6: { 7: string ret = "{0}{1}{2}" ; 8: ret = String.Format(ret, 9: str.Substring(0, 1).ToUpper(), 10: str.Substring(1, str.Length...
Posted 27 September 2007 09:27 AM by Maor David-Pur | 1 comment(s)
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C# Automatic Properties
Visual Studio 2008 and .NET 3.5 introduces us new feature: Automatic Properties . You probably write classes with properties like this: 1: public class Student 2: { 3: private string _firstName; 4: 5: public string FirstName 6: { 7: get { return _firstName; } 8: set { _firstName = value ; } 9: } 10: 11: private string _lastName; 12: 13: public string LastName 14: { 15: get { return _lastName; } 16: set { _lastName = value ; } 17: } 18: 19: private string faculty; 20: 21: public string Faculty 22...
Posted 26 September 2007 01:10 AM by Maor David-Pur | 4 comment(s)
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Getting started with LINQ
Language Integrated Query (LINQ) introducing a standard set of operators that can be used to query several different data stores such as SQL Server and XML. LINQ comes as part of the future revisions of both the C# and VB.NET compilers (VS 2008). LINQ architecture As we see at the figure below, the data to be queried can take the form of XML (LINQ to XML), databases (LINQ-enabled ADO.NET, which includes LINQ to SQL, LINQ to Dataset and LINQ to Entities), objects (LINQ to Objects), and so on. (Click...
Posted 24 September 2007 12:44 AM by Maor David-Pur | 6 comment(s)
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C# 3.0 var keyword
C# 3.0 has many-a-new features. This post will explain the 'var' keywork and the concept of Implicitly Typed Variables. The var keyword is not a late-bound or un-typed variable reference. The var keyword always generates a strongly typed variable reference . The main idea is that the developer is not required to define the type of the variable at the time of declaration, but it is the task of the compiler to decide what type of the object the variable is. The compiler infer the type of the variable...
Posted 15 September 2007 04:27 PM by Maor David-Pur | 5 comment(s)
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Lambda expressions introduction
NET 2.0 introduced Anonymous Methods . The idea behind anonymous methods it to write methods inline to the code. They are mainly used for small methods that don't require any need for reuse. For example, we have this code: 1: bool isGreaterThan5( int n) 2: { 3: return n > 5; 4: } 5: 6: ... 7: 8: int GetGreatersThanFives(List< int > numbers) 9: { 10: return numbers.Find(isGreaterThan5); 11: } We can code it with anonymous method: 1: int GetGreaterThanFives(List< int > numbers) 2...
Posted 07 September 2007 08:22 PM by Maor David-Pur | 7 comment(s)
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SqlMetal for Linq
SqlMetal builds a data access layer in seconds. The output is not just a first generation data access; SqlMetal's output includes all defined relationships (based foreign keys) between your tables. SqlMetal will produce a class for each table and, optionally, classes for all views, stored procedures and user-defined functions. You can also generate strongly typed interfaces for stored procedures and user-defined functions. From the developer point of view, it is now a complete breeze to call either...
Posted 07 September 2007 01:34 AM by Maor David-Pur | 4 comment(s)
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Object Initializers in C# 3.0
C# 3.0 includes a new language feature called object initializers. Object initializers enable you to initialize the state of an object with a single expression that does not require use of parameterized constructors. Basically, this feature allows you to initialize an object by both creating the object instance (i.e. a new expression) as well as assign values to one or more properties in a single sentence, or to initialize a collection with a set of values to add to it in a single expression. class...
Posted 05 September 2007 12:51 AM by Maor David-Pur | 1 comment(s)
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WCF - Part 3: Binding Comparison
Windows Communication Foundation (WCF) has various built-in bindings. System-provided bindings are used to specify the transport protocols, encoding, and security details required for clients and services to communicate with each other. Although some of these values can be configured differently on certain bindings, the table shows the defaults for each type. This post will briefly describe and summarize the key differences between WCF's built-in bindings. Note: WCF also allows you to define your...
Posted 25 May 2007 05:43 PM by Maor David-Pur | 3 comment(s)
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WCF - Part 2: Basic Client/Server app
This post is an example of how to build your first basicly wcf solution. First step: Contract Our contract is a simple interface class ( ICalculator ) containing one function: (Add) . In order to declare the interface as a contract, you should add a [ServiceContract] attribute to the class. All methods you want to expose in your service, you should mark as [OperationContract] . 1 2 3 4 5 6 [ServiceContract] public interface ICalculator { [OperationContract] int Add( int a, int b); } Second step:...
Posted 18 May 2007 11:57 PM by Maor David-Pur | 5 comment(s)
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WCF - Part 1: Introduction & Service ABC
WCF brings all the formerly distinct and separate Microsoft connectivity technologies together under a single umbrella within the System.ServiceModel namespace. Web services (ASMX), the Web service Extensions (WS*), Microsoft Message Queuing (MSMQ), Enterprise Services, COM+, and .NET Remoting are included in WCF. With WCF you won't have to choose between implementations in a variety of different namespaces and coding types to create a connected application. Whether your application connects via...
Posted 18 May 2007 11:54 PM by Maor David-Pur | 2 comment(s)
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