1. Web Application with Dataase
CS 3870: Note06
Prog3
Web Application with Dataase

2. The Database UWPCS3870 SQL Server on Alpha User: MSCS
(not case sensitive)
Password: MasterInCS
(case sensitive)
Working with PCs in the Lab

3. Page Shopping
Property AutoPastBack of Textbox Must be True to fire Textchanged event (When focus leaves the textbox)

4. Textchanged Event of Textbox txtID
// Clear other textboxes string id = txtID.Text.Trim(); System.Data.DataRow row = SQLDataClass.tblProduct.Rows.Find(id); if (row == null) // not found { txtID.Focus() } else // found txtQuanity.Focus()

5. Textchanged Event of Textbox txtID
if (row == null) { Session["Prog3_ID"] = ""; txtID.Focus(); } else txtName.Text = row[1].ToString(); txtPrice.Text = string.Format("{0:C}", row[2]); Session["Prog3_Price"] = row[2].ToString(); Session["Prog3_ID"] = id; txtQuantity.Focus();

6. Not Working!

7. AutoPostBack Control property Button Textbox Others Default: True
Default: False
Others
Should check

8. Textchanged Event of txtQuantity
lblQuantityError.Text = ""; int quantity = 0; if (!int.TryParse(txtQuantity.Text, out quantity) || quantity < 0) { lblQuantityError.Text = "Quanity must be a non-negative integer!"; return; } if ((string)Session["Prog3_ID"] == "") // clear textboxes txtID.Focus(); else // get price // calculate // Display result

9. Validating Input txtID txtQuantity No need to do it
Database will check it
txtQuantity
Validator
No Validator
Your choice
Prog3 of CS3870 does not use Validator

10. Grading
You will lose 15 points if page Default.aspx cannot access the database.
You will lose 10 points if page Updating.aspx or page Shopping.aspx cannot work correctly with the database.

11. Grading
If you make the same mistakes as in Prog2, the lost points will be doubled!
For example, you will lose 2 points if your Prog3 rejects 0 for quantity.

12. Programming Rules Comment Block
For code files only
Including Global.asax and SQLDataClass
Not for *.aspx or .master files

13. Programming Rules
Your Web pages should be the same as the sample pages.

14. Test 1 50 points Tuesday (week 5), October 2 Lab 206 2:00 – 4:00
Based on Prog3

15. Test 1 Grading Cannot display records in GridView: -15
Cannot display individual records: -15
Formatting GridView: 5 points
Placing controls: 5 points
Checking input: 5 points
Help: -5