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ASP.NET Seminar

ASP.NET Seminar. February 16, 2013. Aaron Cuffman acuffman@bthreesolutions.com Andy Nagle anagle@bthreesolutions.com Adam Schultz aschultz@bthreesolutions.com Web Site http://www.bthreesolutions.com. Objectives. Learn the fundamentals of Server-client relations and Page events

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ASP.NET Seminar

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  1. ASP.NETSeminar February 16, 2013

  2. Aaron Cuffman • acuffman@bthreesolutions.com • Andy Nagle • anagle@bthreesolutions.com • Adam Schultz • aschultz@bthreesolutions.com • Web Site • http://www.bthreesolutions.com

  3. Objectives • Learn the fundamentals of • Server-client relations and Page events • Sate management • Controls and Layouts • Databinding • JavaScript and ASP.NET

  4. Procedures • Seminar will consist of 5 Lessons & 5 Labs • Labs are designed for individuals • Group work will be accommodated • Each Lab is self contained • If you are unable to complete a lab or partial seminar attendance occurs; labs can be completed on your own • Next lab will not require prior lab completion • Open Conversation • Object is to help you learn the material

  5. Agenda • 9:00 – 9:30 Lesson 1: Introduction to ASP.NET • 9:30 – 10:00 Lab 2 • 10:00 – 10:30 Lesson 2: State Management • 10:30 – 10:45 Break • 10:45 – 11:15 Lesson 3: Standard SQL • 11:15 – 11:45 Lab 2 • 11:45 – 12:30 Break • 12:30 – 1:00 Lesson 3: Controls • 1:00 – 1:30 Lab 3 • 1:30 – 2:00 Lesson 4: Data Binding • 2:00 – 2:30 Lab 4 • 2:30 – 3:00 Lesson 5: JavaScript • 3:00 – 3:30 Lab 5 • 3:30 – 4:00 Wrap Up

  6. Introduction to ASP.NET An adventure in TIME and SPACE!

  7. What is ASP.NET? • Web Application framework • Used in building dynamic web pages • Built on CLR • You can write ASP.NET code in any .NET language • C#, VB, etc. http://en.wikipedia.org/wiki/List_of_CLI_languages

  8. What is ASP.NET? • Gives the “feel” of building a WinForm/WPF style page, but with web pages • Can be misleading if you haven’t seen the page life cycle [EPIC FORECHADOWING] which we will cover soon.

  9. Design vs Code Behind • ASPX (Design) and .CS/.VB (Code Behind) • Separates display from business logic • Makes it easy to have multiple people working on the same page • Designer working on the designer page • Programmer working on the Code Behind • Not restricted to using Visual Studio • Ex: Blend http://msdn.microsoft.com/en-us/library/windows/apps/jj129478.aspx

  10. Design vs Code Behind • ASPX page • The “designer” view. This describes the layout of the page • Code Behind Page • Responds to events from the designer view • Page logic goes here • Redraw the page, make new queries, show/hide page sections

  11. Request Path • Two major roles. Client and Server • Client • Makes requests to the server • Server • Turns requests into HTML pages (or files, or media)

  12. Page Life Cycle • Once a server receives a request for a page, it needs to render that page • Takes the ASPX file plus the code for the events and turns them into HTML

  13. Pre Init • Raised after the start stage is complete and before the initialization stage begins. • Used to: • Create dynamic controls • Set master page • Set themes • Initialize page content before Init

  14. Init • Raised after all controls have been initialized and any skin settings have been applied • The Init event of individual controls occurs before the Init event of the page. • Used to: • Initialize controls before Load • Last chance to do anything before the ViewState is loaded

  15. Load • The Page object calls the OnLoad method on the Page object, and then recursively does the same for each child control until the page and all controls are loaded. • Used to: • Set Properties for controls • Establish Database Connections • “ready” your page

  16. Control Events • Button Click, Checkbox Changed, Textbox Changed, etc. • These events are processed in the order they occur

  17. Pre Render • Raised after the Page object has created all controls that are required in order to render the page • Last chance to change anything before rendering the page

  18. Render • This is not an event; instead, at this stage of processing, the Page object calls this method on each control. • Turns Controls into markup to send to the browser • If you create a custom control, you typically override this method to output the control's markup.

  19. Unload • Raised for each control and then for the page. • Used as final cleanup for controls • At the end of this process, the page is destroyed. • During the unload stage, the page and its controls have been rendered, so you cannot make further changes to the response stream.

  20. Page Life Cycle • Much more information on MSDN http://msdn.microsoft.com/en-us/library/ms178472(v=vs.100).aspx

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