C# 5.0 Programmer's Reference

684 ❘ APPENDIX A Solutions to Exercises
5. Example program ConfigLabel uses the following code to make its label use the font specified
in the config file.
private void Form1_Load(object sender, EventArgs e)
{
greetingsLabel.Font = Properties.Settings.Default.GreetingFont;
}
(Alternatively, you could bind the label’s font to the dynamic setting. Then you wouldn’t
need to use code to set it at run time.)
If you modify the config file and run the compiled executable, you see the new font. In fact, if
you run the program from Visual Studio, you still see the new font because the modified config
file is in the same directory as the executable being run by Visual Studio.
If you delete the config file and run the compiled executable, you get the original font back.
Next, if you run the program from Visual Studio, you get the original font and Visual
Studio replaces the original config file.
6. Example program LocalizedStrings uses the following code to do this.
public Form1()
{
// Set the culture and UI culture to French.
Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR");
Thread.CurrentThread.CurrentUICulture = new CultureInfo("fr-FR");
}
InitializeComponent();
// Display a greeting.
private void Form1_Load(object sender, EventArgs e)
{
MessageBox.Show(MyStrings.Greeting);
}
When the program loads the fr-FR locale, it displays the message Salut. Visual Studio creates a
subdirectory named fr and puts the localized resource file LocalizedStrings.resources.dll in it.
7. Example program ShowCurrency uses the following code to do this.
private void Form1_Load(object sender, EventArgs e)
{
DateTime date = DateTime.Now;
decimal amount = 12345.67m;
string[] cultures =
{ "fr-FR", "de-DE", "de-CH", "es-MX", "es-ES", "en-US", "en-GB" };
}
foreach (string culture in cultures)
{
Thread.CurrentThread.CurrentCulture = new CultureInfo(culture);
resultsListBox.Items.Add(culture + "\t" +
date.ToShortDateString() + "\t" +
amount.ToString("C"));
}
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