You will use a Dictionary to drive this application. The Key will be the last name of the premier (there is a method in the Premier class that generated a key) and the value will be the premier object. The images are in a folder on the p drive. The images are named also by the premier’s last name.
You should use the file Premier.cs file. [See appendix for the logic for the Premier class]
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Prefix: pic
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Usage: To display an image on screen. Image can be set at design time and maybe be modified at runtime with code.
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Setting SizeMode property to AutoSize allows the controls to dynamically adjust its width and height to display the image.
There are two ways of putting an image on a PictureBox:
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picPremier.Image = Image.FromFile(filename);
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picPremier.ImageLocation = filename;
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Prefix: lst
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Usage: To display an un-editable list. The list can be set at design time or by code at runtime. If there are more items than can be displayed, a scrollbar is provided to allow the user to bring the other items into view.
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The ComboBox is similar to the listbox but it also allows the user to enter a different value those contained in the list.
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Changing the SelectionMode property of this control allows the user to select multiple items. This is not necessary for this application.
The items can be added at design time or at runtime.
lstPremiers.DataSource = List<string >; //sets all the items
//no more additionslslPremier.Items.Add("Narendra"); //adds each item individually
lslPremier.Items.Add("Ilia"); //adds each item individually
lslPremier.Items.Add("Jake"); //adds each item individually
lslPremier.SelectedValue.ToString(); //give the selected value
lslPremier.SelectedItem.ToString(); //give the selected item
lslPremier.SelectedItems; //returns an array of items
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Declare a variable to store the premiers which should be declared as:
Dictionary<string, Premier> premiers. -
Create a method InitializeGui() that will populate a Dictionary with from a List and use the keys from the resulting dictionary to populate a ListBox. This method does the following:
This InitializeGui() method is invoke in the last line of the From1 constructor.
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Initialize the above variable using the following logic:
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Initialize to an empty collection.
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Obtain a list of premier by calling the static GetPremier() of the Premier class.
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For each premier add a pair to the dictionary
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The key of the pair is obtain by calling GenerateKey() on the current object.
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The value of the pair is the current object.
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You should populate the ListBox here.
This listbox contain the keys in the dictionary- Create a list from the dictionary keys, and then assign it to the DataSource property of this control.
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Create a UpdateGui(string key) method that will do the following:
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Retrieves the premier object based on the argument (key).
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The Name property of the above object is assigned to the Text property of the first label.
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The Life property of the above object is assigned to the Text property of the second label.
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The Start and End properties of the above object is assigned to the Text property of the third label.
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{image_folder}\key + ".jpg" will goes to the name of the image file. You need to download the zipped archive of the premier’s pictures and unzip to a folder in your bin\Debug folder
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Add a SelectedValueChanged event handler for the ListBox. This will call the previous method with the key as argument.
Use the MessageBox.Show() method as a debugging tool.
class Premier
{
public string Name { get; }
public string Life { get; }
public string Constituent { get; }
public string Start { get; }
public string End { get; }
public string Party { get; }
public Premier(string name, string life, string constituent, string start, string end, string party)
{
Name = name;
Life = life;
Constituent = constituent;
Start = start;
End = end;
Party = party;
}
public string GenerateKey()
{
return Name.Split().Last(); // uses linq to get the last name
}
public static List<Premier> GetPremiers() => new List<Premier>
{
new Premier("John Sandfield Macdonald", "(1812-1872)", "MLA for Cornwall", "16 July 1867", "20 December 1871", "Liberal-Conservative Party"),
new Premier("Edward Blake", "(1833-1912)", "MLA for Bruce South", "20 December 1871", "25 October 1872", "Liberal Party"),
new Premier("Sir Oliver Mowat", "(1820-1903)", "MLA for Oxford North", "25 October 1872", "21 July 1896", "Liberal Party"),
new Premier("Arthur Sturgis Hardy", "(1837-1901)", "MLA for Brant South", "21 July 1896", "21 October 1899", "Liberal Party"),
new Premier("Sir George William Ross", "(1841-1914)", "MLA for Middlesex West", "21 October 1899", "8 February 1905", "Liberal Party"),
new Premier("Sir James Whitney", "(1843-1914)", "MLA for Dundas", "8 February 1905", "25 September 1914", "Conservative Party"),
new Premier("Sir William Hearst", "(1864-1941)", "MLA for Sault Ste. Marie", "2 October 1914", "14 November 1919", "Conservative Party"),
new Premier("Ernest Drury", "(1878-1968)", "MLA for Halton", "14 November 1919", "16 July 1923", "United Farmers"),
new Premier("George Howard Ferguson", "(1870-1946)", "MLA for Grenville", "16 July 1923", "15 December 1930", "Conservative Party Named leader in 1920"),
new Premier("George Stewart Henry", "(1871-1958)", "MLA for York East", "15 December 1930", "10 July 1934", "Conservative Party"),
new Premier("Mitchell Hepburn", "(1896-1953)", "MLA for Elgin (until 1938) MPP for Elgin (from 1938)", "10 July 1934", "21 October 1942", "Liberal Party Named leader in 1930"),
new Premier("Gordon Daniel Conant", "(1885-1953)", "MPP for Ontario", "21 October 1942", "18 May 1943", "Liberal Party"),
new Premier("Harry Nixon", "(1891-1961)", "MPP for Brant", "18 May 1943", "17 August 1943", "Liberal Party Named leader in 1943"),
new Premier("George A. Drew", "(1894-1973)", "MPP for High Park (until 1948)", "17 August 1943", "19 October 1948", "Progressive Conservative Party Named leader in 1938"),
new Premier("Thomas Laird Kennedy", "(1878-1959)", "MPP for Peel", "19 October 1948", "4 May 1949", "Progressive Conservative Party"),
new Premier("Leslie Frost", "(1895-1973)", "MPP for Victoria", "4 May 1949", "8 November 1961", "Progressive Conservative Party Named leader in 1949"),
new Premier("John Robarts", "(1917-1982)", "MPP for London North", "8 November 1961", "1 March 1971", "Progressive Conservative Party Named leader in 1961"),
new Premier("Bill Davis", "(b. 1929)", "MPP for Peel North (until 1975) MPP for Brampton (from 1975)", "1 March 1971", "8 February 1985", "Progressive Conservative Party Named leader in 1971"),
new Premier("Frank Miller", "(1927-2000)", "MPP for Muskoka", "8 February 1985", "26 June 1985", "Progressive Conservative Party named leader in 1985"),
new Premier("David Peterson", "(b. 1943)", "MPP for London Centre", "26 June 1985", "1 October 1990", "Liberal Party Named leader in 1982"),
new Premier("Bob Rae", "(b. 1948)", "MPP for York South", "1 October 1990", "26 June 1995", "New Democratic Party Named leader in 1982"),
new Premier("Mike Harris", "(b. 1945)", "MPP for Nipissing", "26 June 1995", "14 April 2002", "Progressive Conservative Party Named leader in 1990"),
new Premier("Ernie Eves", "(b. 1946)", "MPP for Dufferin—Peel—Wellington—Grey", "15 April 2002", "22 October 2003", "Progressive Conservative Party Named leader in 2002"),
new Premier("Dalton McGuinty", "(b. 1955)", "MPP for Ottawa South", "23 October 2003", "11 February 2013", "Liberal Party Named leader in 1996"),
new Premier("Kathleen Wynne", "(b. 1953)", "MPP for Don Valley West", "11 February 2013", "29 June 2018", "Liberal Party Named leader in 2013"),
new Premier("Doug Ford", "(b. 1964)", "MPP for Etobicoke North", "29 June 2018", "Present", "Progressive Conservative Party Named leader in 2018")
};
}
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