following on from http://thoughtjelly.blogspot.com/2009/09/silverlight-prism-commands-textchanged.html and in response to John Papa’s PDC talk http://johnpapa.net/silverlight/mvvm-and-prism-demo-for-pdc09-silverlight-session. Another highly useful command behaviour is for DataGridRowSelected. This also gets over the issues described here and here. The code (as written by John Papa) is: public class DataGridRowSelectedCommandBehavior : CommandBehaviorBase{public DataGridRowSelectedCommandBehavior(DataGrid selectableObject): base(selectableObject){selectableObject.SelectionChanged += OnSelectionChanged;}private void OnSelectionChanged(object sender, SelectionChangedEventArgs e){this.CommandParameter =... Continue Reading →

In Silverlight there is no Enum.Getvalue() method, so there is not out-of-the box way of databinding a radio buttongroup to an enumerable value in a viewmodel. Step forward converters. using System;using System.Windows.Data;namespace YourNamespace{ public class EnumBoolConverter : IValueConverter{ #region Methods public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture){ if (value == null ||... Continue Reading →