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Visualizers-Console.workbook

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com.xamarin.workbook
Console

Visualizers (Console)

Xamarin Workbooks uses a different visualizers for inline code evaluation results:

  • String

  • Object

  • Enumerable

  • Exception

  • Html

  • Help

By default, the results of a code-block will shown as a string representation of the last-referenced object in the block. The Monkey class below demonstrates this: when the rupert object is assigned, the ToString representation is printed after the code-block.

class Monkey {
	public string Name;
	public string Species;
	public string Habitat;
	public DateTime Birthday = DateTime.MinValue;
	public override string ToString(){
		return $"{Name} the {Species} ({Habitat})"; //C# 6
	}
}
var rupert = new Monkey {Name="Rupert", Species = "Xamarin", Habitat="San Francisco"};

Use the popup menu to the right of the result to switch to the Object Members view. Most code-block results in Workbooks will have both ToString and Object Members display options.

DateTime values have a number of display options, including a calendar view:

rupert.Birthday = new DateTime(2011,05,11);

Enumerable collections will be expanded so that you can explore their contents. You can also change the view of each individual object in the collection:

var enumerable = new List<string> {"alpha", "beta", "gamma", "delta"};

Exceptions have a custom display:

new ArgumentNullException ("name");

HTML can also be emitted from code-blocks and rendered in the Workbook. This simple example uses string interpolation to customize an HTML string for display using AsHtml():

var greeting = "Hello, Workbooks";  // C# 6 string interpolation
$"<html><h2>{greeting}</h2><b>bold</b> <i>italic</i> <u>underline</u></html>".AsHtml()

There’s also a help command, which just lists some handy tips. The help list is slightly different for each platform supported by Workbooks.

help

And finally, not really a visualization, but from the help above you can see that it’s possible to affect the culture of the Workbook. These code-blocks show the date rendered in English and then Spanish (after setting the CurrentCulture):

DateTime.Now.ToLongDateString()
CurrentCulture = new System.Globalization.CultureInfo("es");
DateTime.Now.ToLongDateString()
// reset to English
CurrentCulture = new System.Globalization.CultureInfo("en");