ASP.Net Blog

Identifying the exceptions thrown from a given method

Ajay Pathak — Wed, 03 Mar 2010 03:28:22 +0000

.Net runtime throw a number of exceptions so it becomes really important to understand which exceptions may be thrown by a given base class library method. .Net Framework SDK contains a list of exceptions a given member may throw. Visual Studio 2008 allows you to view the list of all exceptions thrown by a base class library member (if any) simply by hovering your mouse cursor over the member name in the code window.

Backup And Restore Database SQL Script for SQL Server

Ajay Pathak — Tue, 23 Feb 2010 02:52:48 +0000

Its a very common task to backup and restore SQL Server databases. SQL Server Management studio offers a GUI for performing backup and restore but following queries would be very useful for backup and restore if you are not having access to SQL Server Management Studio

Backup Script

BACKUP DATABASE database_name TO DISK = ‘C:\example.bak’ WITH FORMAT;

Restore Script

RESTORE DATABASE ‘DATABASE_NAME’ FROM DISK =’C:\EXAMPLE.BAK’

Download Visual Studio 2010 and .NET Framework 4 Training Kit – February Release

Ajay Pathak — Sat, 13 Feb 2010 01:51:18 +0000

The Visual Studio 2010 and .NET Framework 4 Training Kit includes presentations, hands-on labs, and demos. This content is designed to help you learn how to utilize the Visual Studio 2010 features and a variety of framework technologies including:

C# 4.0
Visual Basic 10
F#
Parallel Extensions
Windows Communication Foundation
Windows Workflow
Windows Presentation Foundation
ASP.NET 4
Windows 7
Entity Framework
ADO.NET Data Services
Managed Extensibility Framework
Visual Studio Team System

This version of the Training Kit works with Visual Studio 2010 RC and .NET Framework 4 RC.

Supported Operating Systems: Windows 7; Windows Server 2008; Windows Vista

Visual Studio 2010 RC .NET Framework 4 RC.

Instructions

Download and launch the self-extracting package. The Training Kit will uncompress to the selected folder and launch a HTML browser for the content.

Download Visual Studio 2010 and .NET Framework 4 Training Kit – February Release

Windows Identity Foundation

Ajay Pathak — Thu, 14 Jan 2010 03:03:19 +0000

The Windows Identity Foundation helps simplify user access for developers by externalizing user access from applications via claims and reducing development effort with pre-built security logic and integrated .NET tools.Windows Identity Foundation helps .NET developers build claims-aware applications that externalize user authentication from the application, improving developer productivity, enhancing application security, and enabling interoperability. Developers can enjoy greater productivity, using a single simplified identity model based on claims. They can create more secure applications with a single user access model, reducing custom implementations and enabling end users to securely access applications via on-premises software as well as cloud services. Finally, they can enjoy greater flexibility in application development through built-in interoperability that allows users, applications, systems and other resources to communicate via claims.

Download Windows Identity Foundation

Office 2010 Developer Training Kit Available for Download

Ajay Pathak — Wed, 16 Dec 2009 01:29:59 +0000

Microsoft Office 2010 Beta is a broadly extensible platform for building information worker productivity solutions and developing for Office with Visual Studio 2010 Beta 2 makes this easy. The Office 2010 Developer Training Kit content is designed to help developers get started building solutions, from add-ins to full featured Office Business Applications (OBAs), using Visual Studio 2010 with Office 2010 and SharePoint 2010 as the core platform.

This training kit is an offline complement to the Office Learning Center and provides links to the videos but the hands-on labs (HOLs), source code and presentations will be conveniently available on the local machine. The possibilities and scenarios that are now available with Office 2010 and Office coupled with SharePoint 2010 are very exciting.

Each of the HOLs in the training kit have a number of exercises to incrementally present the concepts and help the developer build their skills. The labs included in the training kit are:

Getting Started with Office 2010 Development
Office 2010 UI Customizations
Client Workflow
Security and Deployment
Open XML
InfoPath and Forms Services
Business Connectivity Services
Office 2010 Service Applications
Developing BI Applications

There will be more to come, so stay tuned to the Office Learning Center on Channel 9. And don’t forget to check for new resources coming online at the Office Developer Center on MSDN. Lastly, be sure to check out the SharePoint 2010 Developer Training Kit as well on the Channel 9 SharePoint Learning Center.

Download Office 2010 Developer Training Kit

Understanding Method Overloading in C#

Ajay Pathak — Tue, 15 Dec 2009 02:30:18 +0000

Like other Programming languages C# also supports method overloading. Method overloading is a feature found in various programming languages such as Ada, C#, C++, D and Java that allows the creation of several methods with the same name which differ from each other in terms of the type of the input and the type of the output of the function. [According to wikipedia]

Method Overloading Example

Suppose in our application we want to add to two integers, double, float and long. The first way is to create unique methods for each addition operation or call a single method name with distinct set of arguments.

The Visual Studio IDE will provide you assistance while calling overloaded method.

Code Snippet

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace Method_Overloading
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("**********************************Method Overloading Demo**********************************");
            Console.WriteLine("Add two int :" + Add(1, 1));
            Console.WriteLine("Add two Double :" + Add(1.0, 1.0));
            Console.WriteLine("Add two float :" + Add(11.12, 1.123));
            Console.WriteLine("Add two long :" + Add(234561, 11235678));
            Console.ReadLine();
 
        }
        private static  Int64 Add(int num1, int num2)
        {
            return num1 + num2;
        }
        private static double Add(double num1, double num2)
        {
            return num1 + num2;
        }
        private static float Add(float num1, float num2)
        {
            return num1 + num2;
        }
        private static long Add(long num1, long num2)
        {
            return num1 + num2;
        }
    }
}

Method overloading does not depends upon the return type of method, if you are having two methods with unique name with equal number of arguments and of same type with different return type than these methods are not overloaded method instead they are same methods and compiler will give error at compile time.

Data Type Conversion in .Net

Ajay Pathak — Sat, 05 Dec 2009 11:58:28 +0000

Some times it is required to convert data from one base data type to another base data type. The Convert Class converts a base data type to another base data type. Convert class throw a FormatException when the attempt was made to convert a String to other base data type and String value is in not proper format. To Handle FormatException we can use Convert class convert method inside try catch block but there is another better way of doing the same thing is to use TryParse to avoide runtime errors and eliminate the need of Try Catch block.

TryParse method is available for all .Net base data type including Boolean, Char, SByte, Byte, Int16, Int32, Int64, UInt16, UInt32, UInt64, Single, Double, Decimal, DateTime and String. There are two overloaded versions of TryParse method is available for each .Net base data type.

Boolean.Try Parse

Converts specified String value to equivalent Boolean Value. Return True if Conversion is successful otherwise return False.

Byte.TryParse

Converts Specified String value to equivalent Byte Value. Return True if conversion is successful otherwise return False.

TryParse works in the same way for other base type also.

Code Snippet

Dim Result As Boolean
        Dim ByteResult As Byte
        Dim BooleanResult As Boolean
        Dim IntegerResult As Integer
        Dim DoubleResult As Double
        Dim InputString As String = "1"
 
        Result = Byte.TryParse(InputString, ByteResult)
        If Result = False Then
            Console.WriteLine(InputString & " is not converted into Byte" & vbCrLf)
        Else
            Console.WriteLine(InputString & " is converted to Byte : " & ByteResult & vbCrLf)
        End If
 
        InputString = "True"
        Result = Boolean.TryParse(InputString, BooleanResult)
        If Result = False Then
            Console.WriteLine(InputString & " is not converted to Boolean : " & vbCrLf)
        Else
            Console.WriteLine(InputString & " is converted to Boolean : " & BooleanResult & vbCrLf)
        End If
 
        InputString = "12345"
        Result = Integer.TryParse(InputString, IntegerResult)
        If Result = False Then
            Console.WriteLine(InputString & " is not converted to Integer" & vbCrLf)
        Else
            Console.WriteLine(InputString & " is converted to Integer : " & IntegerResult & vbCrLf)
        End If
 
        InputString = "12345.111"
        Result = Double.TryParse(InputString, DoubleResult)
        If Result = False Then
            Console.WriteLine(InputString & " is not converted to Double : " & vbCrLf)
        Else
            Console.WriteLine(InputString & " is converted to Double : " & DoubleResult & vbCrLf)
        End If

Silverlight 4 Beta Documentation is Now Available for Download

Ajay Pathak — Tue, 01 Dec 2009 02:24:01 +0000

Silverlight Beta 4 documentation is already available on MSDN website and developers can also access Silverlight Beta 4 documentation offline.

Download Silverlight Beta 4 Documentation

Silverlight Beta 4 Documentation on MSDN

Optimize Ajax Application With Microsoft Doloto

Ajay Pathak — Tue, 08 Sep 2009 16:11:21 +0000

Microsoft Dev Labs released an Ajax application optimization tool called Doloto. Doloto is very useful for large and complex Web 2.0 applications that contain a lot of code. Doloto analyzes AJAX application workloads and automatically performs code splitting of existing large Web 2.0 applications. After being processed by Doloto, an application will initially transfer only the portion of code necessary for application initialization.

Doloto reduces the size of initial application code download by hundreds of kilobytes or as much as 50% of the original download size. The time to download and begin interacting with large applications is reduced by 20-40% or dozens of seconds as shown below, depending on the application and wide-area network conditions.

The Doloto process proceeds in three steps, which correspond to wizard steps in the Doloto GUI.

First, the application you want to optimize is profiled. Doloto performs profiling by running a local proxy on your machine that intercepts JavaScript files and instruments them. This is done in a browser-independent manner.
Second, the profiling information is used to calculate code coverage and a clustering strategy. This determines which functions are stubbed out and which are not. This also groups functions into groups which are downloaded together, called clusters.
Third, the JavaScript code is rewritten and saved to disk so that you can upload it to the server. Note that the entire process happens entirely on the client – that is, on your own machine, without needing access to the server. This way, you can profile and optimize the JavaScript of a third-party site such as cnn.com or maps.bing.com without having any sort of special access to their servers. It’s only when you are satisfied with the results of Doloto rewriting that you need to deploy the Doloto-rewritten files to the server.

This document is a step-by-step guide on how to use Doloto.

Download Doloto

Bing & Ping: Share Bing Search Results With Your Friends

Ajay Pathak — Sun, 06 Sep 2009 03:34:24 +0000

Bing team in Microsoft working very hard to add more and more new feature in Bing. Bing team is now trying to build a bridge between Bing search results and social networking website. Bing & Ping will enable users to share their Bing search results with their friends on different social networking websites.

How Bing & Ping would Work ?

Bing & Ping will appear at the bottom of search results and users will be able to share these search results information with their friends via Social networking websites including Facebook, Twitter or they can simply send them an E-Mail.

Bing & Ping allow Bing users to share any kind of search results with their friends.

Bing & Ping is not yet available for testing yet but Microsoft only delivered a taste of the feature in the screenshots included with this article. If you’re interested in previewing this feature, be sure to become a fan of our Facebook page. Microsoft will be sending a special invitation to our fans to preview Bing and Ping. Check it out and let Bing team know what you think, if you like it and how Bing Team can make it better.

ASP.Net Blog

Identifying the exceptions thrown from a given method

Backup And Restore Database SQL Script for SQL Server

Download Visual Studio 2010 and .NET Framework 4 Training Kit – February Release

Instructions

Windows Identity Foundation

Office 2010 Developer Training Kit Available for Download

Getting Started with Office 2010 Development

Office 2010 UI Customizations

Client Workflow

Security and Deployment

Open XML

InfoPath and Forms Services

Business Connectivity Services

Office 2010 Service Applications

Developing BI Applications

Understanding Method Overloading in C#

Method Overloading Example

Data Type Conversion in .Net

Silverlight 4 Beta Documentation is Now Available for Download

Optimize Ajax Application With Microsoft Doloto

Bing & Ping: Share Bing Search Results With Your Friends

How Bing & Ping would Work ?