Added SelectedMemberPath to CheckListBox and CheckComboBox

ExtendedWPFToolkitSolution/Src/Samples/Modules/Samples.Modules.Color/Views/HomeView.xaml

@@ -25,9 +25,10 @@
 
         <StackPanel>
             <extToolkit:CheckComboBox x:Name="_combo" HorizontalAlignment="Center" VerticalAlignment="Center" 
-                                 DisplayMemberPath="Color"
-                                 SelectedValuePath="Level"
-                                 SelectedItems="{Binding SelectedItems}" />
+                                      DisplayMemberPath="Color"
+                                      ValueMemberPath="Level"
+                                      SelectedValue="{Binding SelectedValue}"
+                                      SelectedItems="{Binding SelectedItems}"/>
 
             <!--<extToolkit:CheckComboBox x:Name="_combo" HorizontalAlignment="Center" VerticalAlignment="Center"
                                       SelectedValue="{Binding SelectedValues}" />-->
@@ -39,12 +40,20 @@
 
             <extToolkit:CheckListBox x:Name="_listBox" Height="250"
                                       DisplayMemberPath="Color"
-                                      SelectedValuePath="Level"
-                                     SelectedItems="{Binding SelectedItems}" />
+                                      ValueMemberPath="Level" 
+                                     SelectedMemberPath="IsSelected"
+                                     SelectedValue="{Binding SelectedValue}"
+                                     SelectedItems="{Binding SelectedItems}"/>
 
             <!--<extToolkit:CheckListBox x:Name="_listBox" Height="250"
                                      SelectedValue="{Binding SelectedValues}"
                                      />-->
+            
+            <TextBlock Text="{Binding SelectedValue}" />
+            <ListBox ItemsSource="{Binding SelectedItems}" Height="50" />
+            
+            <Button Click="Button_Click">Set</Button>
+            
         </StackPanel>
     </Grid>
 </infControls:DemoView>

ExtendedWPFToolkitSolution/Src/Samples/Modules/Samples.Modules.Color/Views/HomeView.xaml.cs

@@ -34,9 +34,9 @@ namespace Samples.Modules.Color.Views
 
             List<Person> colors = new List<Person>();
             colors.Add(new Person(System.Windows.Media.Colors.Red, 0));
-            colors.Add(new Person(System.Windows.Media.Colors.Purple, 1));
+            colors.Add(new Person(System.Windows.Media.Colors.Purple, 1) { IsSelected = true });
             colors.Add(new Person(System.Windows.Media.Colors.Coral, 2));
-            colors.Add(new Person(System.Windows.Media.Colors.MidnightBlue, 3));
+            colors.Add(new Person(System.Windows.Media.Colors.MidnightBlue, 3) { IsSelected = true });
             colors.Add(new Person(System.Windows.Media.Colors.Green, 4));
             colors.Add(new Person(System.Windows.Media.Colors.Red, 5));
             colors.Add(new Person(System.Windows.Media.Colors.Purple, 6));
@@ -60,14 +60,19 @@ namespace Samples.Modules.Color.Views
             //_combo.SelectedValue = "1,3,5,7,9,";
 
             _listBox.ItemsSource = colors;
-            //_listBox.DelimitedValue = "1,3,5,7,9,";
+            //_listBox.SelectedValue = "1,3,5,7,9,";
+        }
+
+        private void Button_Click(object sender, System.Windows.RoutedEventArgs e)
+        {
+            (DataContext as Data).SelectedValue = "1,3,5,7,9,";
         }
     }
 
-    public class Data
+    public class Data: INotifyPropertyChanged
     {
         private string _selectedValues;// = "1,3,5,7,9,";
-        public string SelectedValues
+        public string SelectedValue
         {
             get
             {
@@ -76,23 +81,31 @@ namespace Samples.Modules.Color.Views
             set
             {
                 _selectedValues = value;
+                OnPropertyChanged("SelectedValue");
             }
         }
 
-        private ObservableCollection<Person> _selectedItems = new ObservableCollection<Person>()
-        { 
-            new Person(System.Windows.Media.Colors.Red, 0),
-            new Person(System.Windows.Media.Colors.Coral, 2)            
-        };
-
+        private ObservableCollection<Person> _selectedItems = new ObservableCollection<Person>();
         public ObservableCollection<Person> SelectedItems
         {
             get { return _selectedItems; }
             set
             {
                 _selectedItems = value;
+                OnPropertyChanged("SelectedItems");
             }
-        }        
+        }
+
+        public Data()
+        {
+        }
+
+        public event PropertyChangedEventHandler PropertyChanged;
+        protected void OnPropertyChanged(string propertyName)
+        {
+            if (PropertyChanged != null)
+                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
+        }
     }
 
     public class Person : INotifyPropertyChanged

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/Core/Primitives/Selector.cs

@@ -1,12 +1,11 @@
 using System;
 using System.Collections;
 using System.Collections.ObjectModel;
+using System.ComponentModel;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Data;
-using System.ComponentModel;
 using System.Windows.Input;
-using System.Collections.Specialized;
 
 namespace Microsoft.Windows.Controls.Primitives
 {
@@ -63,6 +62,13 @@ namespace Microsoft.Windows.Controls.Primitives
             set { SetValue(SelectedItemsProperty, value); }
         }
 
+        public static readonly DependencyProperty SelectedMemberPathProperty = DependencyProperty.Register("SelectedMemberPath", typeof(string), typeof(Selector), new UIPropertyMetadata(null));
+        public string SelectedMemberPath
+        {
+            get { return (string)GetValue(SelectedMemberPathProperty); }
+            set { SetValue(SelectedMemberPathProperty, value); }
+        }
+
         #region SelectedValue
 
         public static readonly DependencyProperty SelectedValueProperty = DependencyProperty.Register("SelectedValue", typeof(string), typeof(Selector), new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault, OnSelectedValueChanged));
@@ -117,38 +123,52 @@ namespace Microsoft.Windows.Controls.Primitives
             _surpressSelectionChanged = true;
             bool isSelected = false;
             var selectorItem = element as FrameworkElement;
-            var value = item;
 
-            //let's check if we can find a value on the item using the SelectedValuePath property
-            if (!String.IsNullOrEmpty(ValueMemberPath))
+            //first try resolving SelectorItem.IsSelected by data binding to the SelectedMemeberPath property
+            if (!String.IsNullOrEmpty(SelectedMemberPath))
             {
-                var property = item.GetType().GetProperty(ValueMemberPath);
-                if (property != null)
+                Binding selectedBinding = new Binding(SelectedMemberPath) 
+                { 
+                    Mode = BindingMode.TwoWay, 
+                    Source = item 
+                };
+                selectorItem.SetBinding(SelectorItem.IsSelectedProperty, selectedBinding);
+            }
+            else
+            {
+                var value = item;
+
+                //let's check if we can find a value on the item using the SelectedValuePath property
+                if (!String.IsNullOrEmpty(ValueMemberPath))
                 {
-                    value = property.GetValue(item, null);
+                    var property = item.GetType().GetProperty(ValueMemberPath);
+                    if (property != null)
+                    {
+                        value = property.GetValue(item, null);
+                    }
                 }
-            }
 
-            //now check to see if the SelectedValue string contains our value.  If it does then set Selector.IsSelected to true
-            if (!String.IsNullOrEmpty(SelectedValue) && SelectedValue.Contains(GetDelimitedValue(value)))
-            {
-                isSelected = true;
-            }
-            else if (SelectedItems != null)
-            {
-                //if we get here we could find the value in the SelectedValue property, so lets search the SelectedItems for a match
-                foreach (object selectedItem in SelectedItems)
+                //now check to see if the SelectedValue string contains our value.  If it does then set Selector.IsSelected to true
+                if (!String.IsNullOrEmpty(SelectedValue) && SelectedValue.Contains(GetDelimitedValue(value)))
+                {
+                    isSelected = true;
+                }
+                else if (SelectedItems != null)
                 {
-                    //a match was found so select it and get the hell out of here
-                    if (value.Equals(GetItemValue(selectedItem)))
+                    //if we get here we could find the value in the SelectedValue property, so lets search the SelectedItems for a match
+                    foreach (object selectedItem in SelectedItems)
                     {
-                        isSelected = true;
-                        break;
+                        //a match was found so select it and get the hell out of here
+                        if (value.Equals(GetItemValue(selectedItem)))
+                        {
+                            isSelected = true;
+                            break;
+                        }
                     }
                 }
-            }
 
-            selectorItem.SetValue(SelectorItem.IsSelectedProperty, isSelected);
+                selectorItem.SetValue(SelectorItem.IsSelectedProperty, isSelected);
+            }
 
             base.PrepareContainerForItemOverride(element, item);
             _surpressSelectionChanged = false;
@@ -184,7 +204,6 @@ namespace Microsoft.Windows.Controls.Primitives
 
         #endregion //Event Handlers
 
-
         #region Methods
 
         protected object GetItemValue(object item)
@@ -261,7 +280,7 @@ namespace Microsoft.Windows.Controls.Primitives
         private void UpdateSelectedValue(object item, bool remove)
         {
             //make sure we have a selected value, or we will get an exception
-            if (String.IsNullOrEmpty(SelectedValue))
+            if (SelectedValue == null)
                 UpdateSelectedValue(String.Empty);
 
             var value = GetItemValue(item);
@@ -280,7 +299,7 @@ namespace Microsoft.Windows.Controls.Primitives
             }
 
             //if the SelectedValue is the same as the updated value then just ignore it
-            if (!SelectedValue.Equals(value))
+            if (!SelectedValue.Equals(updateValue))
                 UpdateSelectedValue(updateValue);
         }