Building Xamarin.Forms Mobile Apps Using XAML by Dan Hermes & Nima Mazloumi

Author:Dan Hermes & Nima Mazloumi
Language: eng
Format: epub
ISBN: 9781484240304
Publisher: Apress

CommandParameters

Now that you can bind the Command property of Button to your MyCommand, it’s time to pass in a parameter. Begin with passing the “Hello” string into your command via CommandParameter. Replace the line containing the Command definition in Listing 5-6 to pass value s into the Command and display it in the Writeline. MyCommand = new Command<string>(s => {Console.WriteLine(s); });

MyCommand now expects a string command parameter in s and writes the string to the Console. Working from Listing 5-7, pass your old “Hello” into the Button’s CommandParameter attribute. <Button Text="Click Me" Command="{Binding MyCommand}" CommandParameter="Hello">

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