Homework answers / question archive / COMP212 Lab#3 – Asynchronous Programming & Parallel Programming Due Date: Friday Midnight of Week#6 Purpose: The purpose of this assignment is to help you become familiar with ? Asynchronous programming & Parallel programming ? WPF Instructions: Be sure to read the following general instructions carefully: This lab must be completed individually

COMP212 Lab#3 – Asynchronous Programming & Parallel Programming Due Date: Friday Midnight of Week#6 Purpose: The purpose of this assignment is to help you become familiar with ? Asynchronous programming & Parallel programming ? WPF Instructions: Be sure to read the following general instructions carefully: This lab must be completed individually

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COMP212

Lab#3 – Asynchronous Programming & Parallel Programming

Due Date: Friday Midnight of Week#6

Purpose: The purpose of this assignment is to help you become familiar with

? Asynchronous programming & Parallel programming

? WPF

Instructions: Be sure to read the following general instructions carefully:

This lab must be completed individually. Please submit your solution through the dropbox, and

name your submission according to the following pattern:

studentID(yourlastname)_Labnumber.zip. e.g., 300123456(smith)_LAB#3.zip

Rubric

Functionality

Marks

Q1

1. GUI

2

2. Class that is to model stock data

1

 3. Load data from csv file and process data (use asynchronous

programming)

3.1.1

Read (1 mark)

3.1.2

Clean data (1 mark)

3.1.3

Display loaded data in DataGrid (2.5 mark)

3.1.4

Sort data according to date (0.5 mark)

5

4. Calculate factorial number asynchronously

1

5. Overall (i.e., Usability and readability, etc.)

1

Q2

1. Use parallel.Invoke() to

1

1.1. Display selected image

1

1.2. Save selected image locally

1

1.3. Create and save thumbnail locally

1

2. Overall

1

Question 1[10 marks]

Implement a WPF app to list stock information that is loaded from StockData.csv. Your app should allow

user to Search specific company’s stock information, and display the search result in a DataGrid, and the

result should be sorted according to the date. Clean the data by removing those rows that the price

contains negative value while the data is loading.

Your app should also allow user to calculate factorial number. The factorial number calculation should

not block user to interact with your app.

[Hint: File I/O and calculating factorial number are typical scenario to use asynchronous programming]

Question 2[5 marks]

FlickrViewer app allows user to search photo(s) based on tag from www.flickr.com through Flickr API.

A tag is any user-supplied word or phrase that helps organize web content. In order to run the application,

you need to apply an API key from https://www.flickr.com/services/apps/create/apply. 

When you launch the app, you should be able to see something similar as below.

You are asked to modify FlickrViewer app to allow user save selected image locally, create and save

thumbnail locally. More specifically, after user select one item from the listBox (located at left), your app

should perform following three actions parallelly by using Parallel class:

1) display the selected image in the PictureBox (located at right), which the original FlickrViewer

app has already provided

2) Save the selected image locally

3) Create thumbnail for the selected image, and save it locally

[ Hint: following snippet shows you how to create and save thumbnail]