ASP NET 4 BASICS USING VISUAL STUDIO 2012 Part 3 (View State)

---

ASP NET 4 BASICS USING VISUAL STUDIO 2012 Part 3 (View State)

PRE-REQUISITE

Previous tutorial : http://visualstudio-steps.blogspot.com/2014/01/asp-net-4-basics-using-visual-studio_4.html 

Or

Download startup file:

https://drive.google.com/file/d/0B86b-ALn-1MGM2xncEFUOEVPRHM/edit?usp=sharing  

STEPS

1) Open the Web Site vbsite101.

Open Default.aspx.

2) In the Design Mode, create a new <p> element below the object myTimeLabel (click an area beside the object [myTimeLabel] and press ENTER key)

3) Add control objects; TextBox, Button and Label.

Click the object icon in the Toolbox, drag and drop them into the <p> element.

Design outcome:

Code outcome:

4) Add OnClick property to the Button.

OnClick=”Click”

Code outcome:

4) Add action codes that will respond to Click event.

Sub Click(ByVal s As Object, ByVal e As EventArgs)     Label1.Text = TextBox1.Text End Sub

Code outcome:

5) Run.

1. Type “Hello” into the Text Box.

2. Click the Button

3. The text “Hello” appears in the Label.

C# EXERCISE

Use the action codes below for the Click event (for C# language):

void Click(Object s, EventArgs e) {    Label1.Text = TextBox1.Text; }

DISCUSSION

ASP.NET controls automatically retain their data when a page is sent to the server in response to an event (such as a user clicking a button). Microsoft calls this persistence

of data view state.

ASP.NET pages maintain view state by encrypting the data within a hidden form field.

This takes up additional resources. If you don’t intend to use view state, it is recommended that you disable it.

DOWNLOAD

Complete Solution: https://drive.google.com/file/d/0B86b-ALn-1MGcHBuVEpMU2VKeDQ/edit?usp=sharing 

---