Use LINQ to extract the data from a file...

Question

Hi,
I have created a Subprocedure CreateEventList
which populates an EventsComboBox
with a current day's events (if any).
I need to store the events in a generic List communityEvents
which is a collection of
communityEvent
objects. This List needs to be created and assigned to the instance variable
communityEvents.
This method should call helper method ExtractData
which will use LINQ to extract the data from my file.
The specified day is the date selected on the calendar control. This method will be called from the CreateEventList.
This method should clear all data from List communityEvents.  
A LINQ
query that creates CommunityEvent
objects should select the events scheduled for selected
day from the file. The selected events should be added to List
communityEvents.
See code below.
Thanks,
public class CommunityEvent
private int day;
public int Day
get
return day;
set
day = value;
private string time;
public string Time
get
return time;
set
time = value;
private decimal price;
public decimal Price
get
return price;
set
price = value;
private string name;
public string Name
get
return name;
set
name = value;
private string description;
public string Description
get
return description;
set
description = value;
private void eventComboBox_SelectedIndexChanged(object sender, EventArgs e)
if (eventComboBox.SelectedIndex == 0)
descriptionTextBox.Text = "2.30PM. Price 12.50. Take part in creating various types of Arts & Crafts at this fair.";
if (eventComboBox.SelectedIndex == 1)
descriptionTextBox.Text = "4.30PM. Price 00.00. Take part in cleaning the local Park.";
if (eventComboBox.SelectedIndex == 2)
descriptionTextBox.Text = "1.30PM. Price 10.00. Take part in selling goods.";
if (eventComboBox.SelectedIndex == 3)
descriptionTextBox.Text = "12.30PM. Price 10.00. Take part in a game of rounders in the local Park.";
if (eventComboBox.SelectedIndex == 4)
descriptionTextBox.Text = "11.30PM. Price 15.00. Take part in an Egg & Spoon Race in the local Park";
if (eventComboBox.SelectedIndex == 5)
descriptionTextBox.Text = "No Events today.";

Answer 1

Any help here would be great.
Look, you have to make the file a XML file type -- Somefilename.xml.
http://www.xmlfiles.com/xml/xml_intro.asp
You can use NotePad XML to make the XML and save the text file.
http://support.microsoft.com/kb/296560
Or you can just use Notepad (standard), if you know the basics of how to create XML, which is just text data that can created and saved in a text file, which, represents data.
http://www.codeproject.com/Tips/522456/Reading-XML-using-LINQ
You can do a (select new CommunityEvent) just like the example is doing a
select new FileToWatch and load the XML data into the CommunityEvent properties.
So you need to learn how to make a manual XML textfile with XML data in it, and you need to learn how to use LINQ to read the XML. Linq is not going to work against some  flat text file you created. There are plenty of examples out on Bing and Google
on how to use Linq-2-XML.
http://en.wikipedia.org/wiki/Language_Integrated_Query
<copied>
LINQ extends the language by the addition of query
expressions, which are akin to
SQL statements, and can be used to conveniently extract and process data from
arrays, enumerable
classes, XML documents,
relational databases, and third-party data sources. Other uses, which utilize query expressions as a general framework for readably composing arbitrary computations, include the construction of event handlers<sup class="reference" id="cite_ref-reactive_2-0">[2]</sup>
or
monadic parsers.<sup class="reference" id="cite_ref-parscomb_3-0">[3]</sup>
<end>
<sup class="reference" id="cite_ref-parscomb_3-0"></sup>