Introduction To Dot Net Siddhesh

Introduction to .NET Siddhesh Bhobe

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is Microsoft .NET? ,[object Object],[object Object],[object Object],[object Object],[object Object]

The .NET Platform ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1 st generation web applications OS Services Microsoft provided IIS, IE and COM Applications largely operating in a client / server model were augmented with web browser and servers. Browsers Web app developers took advantage of these local services and used HTML to “project” the UI to many types of clients. Servers Data, Hosts UI Logic Biz Logic

2 nd generation of web applications Combination of “stateless” Web protocols with DNS and IP routing have enabled mass-scale “Geo-Scalability” “ Stateful” “ Stateless” & “ Geo-Scalable” OS Services Biz Logic Tier Rich Client UI Logic Servers Data, Hosts Richer Browsers Separation of data and business logic provide greater scalability and performance while accessing enterprise data. *COM+ Services improve reliability, scalability and manageability. *DHTML for better interactivity.

Next Generation Applications Richer, More Productive User Experience Applications Become Programmable Web Services Standard Browsers Open Internet Communications Protocols (HTTP, SMTP, XML, SOAP) Applications Leverage Globally-Available Web Services Smarter Clients Smarter Devices OS Services Biz Tier Logic Biz Logic & Web Service OS Services Public Web Services Building Block Services Internal Services XML XML XML Servers Data, Hosts XML Other Services XML XML XML HTML

Development/Deployment headaches ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Couldn’t we have this! No “plumbing” is needed and objects can directly interact Components are built on a “common” substrate.

Couldn’t we have this! ,[object Object],[object Object]

Couldn’t we have this! ,[object Object],[object Object],[object Object]

How Much Simpler? HWND hwndMain = CreateWindowEx( 0, "MainWClass", "Main Window", WS_OVERLAPPEDWINDOW | WS_HSCROLL | WS_VSCROLL, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, (HWND)NULL, (HMENU)NULL, hInstance, NULL); ShowWindow(hwndMain, SW_SHOWDEFAULT); UpdateWindow(hwndMain); Form form = new Form(); form.Text = "Main Window"; form.Show(); Windows API .NET Framework

Architecture Visual Studio.NET Windows COM+ Services Common Language Runtime Base Class Library ADO.NET and XML ASP.NET Windows Forms Common Language Specification VB C++ C# JScript …

Common Language Runtime VB Source code Compiler C++ C# Compiler Compiler Assembly IL Code Assembly IL Code Assembly IL Code Operating System Services Common Language Runtime JIT Compiler Native Code Managed code Unmanaged Component

Compilation Source Code C++, C#, VB or any .NET language Metadata IL Managed code Resources myprogram.DLL Assembly is basic deployable unit in .NET VS.NET Csc.exe, vbc.exe, etc. Compiler Assembly DLL or EXE

Assemblies The Building Block ,[object Object],[object Object],[object Object]

ADO.NET Architecture OdbcConnection OdbcCommand OdbcDataAdapte r Odb cDataReader ODBC .NET Data Provider COM Inter op ODBC

Making Database Connection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ADO and XML in the .NET Framework Managed Provider DataReader Command Connection Sync Controls, Designers, Code-gen, etc DataSet XmlReader XSL/T, X-Path, etc XmlData- Document DataAdapter

DataSet ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DataSet Tables Table Columns Column Constraints Constraint Rows Row Relations Relation

Example: Reading/Writing XML ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Example: Associating an XmlDataDocument with a DataSet ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Example: X/Path over Relational ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Example: XSL/T over Relational ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Web Services are “Key” in .NET

Web Services Infrastructure in .NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

.NET Web Services Infrastructure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Service Description ,[object Object],[object Object],[object Object]

Service Implementation ,[object Object],[object Object]

Service Publishing, Discovery and Binding ,[object Object],[object Object],[object Object],[object Object]

Service Invocation and Execution ,[object Object],[object Object],[object Object],[object Object]

Creating and Consuming Web Services in VS.NET

Create New ASP.NET Web Service Project

Project and Sample Files created

Add New Web Service to the Project

What makes this a web service? ,[object Object],[object Object],[object Object],[object Object]

Building and testing the web service ,[object Object],[object Object],[object Object]

More… ,[object Object],[object Object],[object Object]

Windows DNA architecture Windows NT 4/Windows 2000 COM COM COM IIS ASP SQL

.NET Framework ,[object Object],[object Object],[object Object],[object Object],#include <stdio.h> int main() { int a[100]; for (int x=0; x<100; x++) a[x]=x*x; for (int y=0; y<100; y++) a[y] = y*y; return 0; } #include <stdio.h> int main() { int a[100]; for (int x=0; x<100; x++) a[x]=x*x; for (int y=0; y<100; y++) a[y] = y*y; return 0; } #include <stdio.h> int main() { int a[100]; for (int x=0; x<100; x++) a[x]=x*x; for (int y=0; y<100; y++) a[y] = y*y; return 0; } 0010 1100 0101 1010 1100 0011 1111 0101 1010 0101 0000 0000 1000 1011 0101 0000 1111 1100 0100 1101 0101 1010 1100 0011 MSIL CLR VB C# COBOL

DNA to .NET mappings ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Presentation tier mapping ,[object Object],Separate code behind Inline code/presentation Config changes are automatically detected and applied Changes require web server restart or OS reboot Simple xcopy or FTP upload can handle deployment Registration required to deploy site Access to entire Framework Access to limited API Built in session state User managed session state VB.NET, C#, COBOL.NET, … VBScript and JavaScript Compiled code Interpreted code ASP.NET ASP

Migration issues ,[object Object],[object Object],[object Object],[object Object],[object Object]

Rich Client Migration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Recommendations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Rich client benefits ,[object Object],[object Object],[object Object]

Middle tier components ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DCOM Migration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ADO to ADO.NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Language Migration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Migration strategies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Partial web front migration ,[object Object],[object Object],[object Object],COM COM COM IIS ASP IIS ASP

Rich client migration ,[object Object],[object Object],[object Object],Win32 App .NET Winfrom COM COM COM

COM to .NET migration ,[object Object],[object Object],[object Object],VB to VB.NET Wizard migration C++ to managed C++.NET Manual C++ to C# rewrite COM .NET

Another way to look at it… VB6 Front End Component Access COM COM COM

Expose Your COM Components … External Apps VB 6 Web Service COM COM COM SOAP

Convert Front End … VB 6 VB.NET VB 6 COM Interop Upgrade Tool Web Service External Apps COM COM COM SOAP

Convert COM to .NET … VB.NET Migration Tool .NET .NET .NET COM COM COM

Convert Fully … VB.NET VB 6 .NET Interop Web Service External Apps .NET .NET .NET

Migration Notes ,[object Object],[object Object],[object Object],[object Object],[object Object]

Useful Links http://www.microsoft.com/net http://www.gotdotnet.com http://www.sharpdevelop.org http://www.go-mono.com http://www.icsharpcode.net http://www.ecma.ch (C# & CLI standard) http://www.dotnet247.com/

Introduction To Dot Net Siddhesh

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