Selected items synchronizer

License.txt

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+The MIT License (MIT)
+
+Copyright (c) SelectedItemsSynchronizer contributors. (SelectedItemsSynchronizer@prims.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

NextVersion.txt

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+0.3.0

README.md

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+[![][build-img]][build]
+[![][nuget-img]][nuget]
+
+[build]:     https://ci.appveyor.com/project/9swampy/selecteditemsbindingdemo
+[build-img]: https://ci.appveyor.com/api/projects/status/aa8mw3opmlyxc68u?svg=true
+
+[nuget]:     https://badge.fury.io/nu/SelectedItemsSynchronizer
+[nuget-img]: https://badge.fury.io/nu/SelectedItemsSynchronizer.svg
+
 SelectedItemsBindingDemo
 ========================
 
 An example of how to bind the SelectedItems property of an ItemsControl in WPF to a ViewModel
+
+The origin of all this and a good explanation of how it all works can be found at 
+http://blog.functionalfun.net/2009/02/how-to-databind-to-selecteditems.html
+
+The original example demo is still included in the code base, but the code has been reorganised a bit so that it can be published as a utility library in a NuGet package. I'm hoping you'll find it as useful as I have done, and making it available as a NuGet package should ease integration with your production code!
+
+Example usage
+-------------
+```C#
+List<string> names;
+ObservableCollection<string> selectedNames;
+ListView listView;
+
+[TestInitialize]
+public void TestInitialize()
+{
+  names = new List<string>() { "Abraham", "Lincoln", "James", "Buchanan" };
+  selectedNames = new ObservableCollection<string>();
+  listView = new ListView();
+  listView.ItemsSource = names;
+  listView.SelectionMode = SelectionMode.Extended;
+  MultiSelectorBehaviours.SetSynchronizedSelectedItems(listView, (IList)selectedNames);
+}
+
+[TestMethod]
+public void InitialiseToNoSelection()
+{
+  this.selectedNames.Count().Should().Be(0);
+}
+
+[TestMethod]
+public void ShouldSynchroniseListViewSelectAll()
+{
+  // Act
+  this.listView.SelectAll();
+
+  // Assert
+  this.selectedNames.Count().Should().Be(this.names.Count());
+}
+
+[TestMethod]
+public void ShouldSynchroniseListViewSetSelectedIndex()
+{
+  // Act
+  this.listView.SelectedIndex = 0;
+
+  // Assert
+  this.selectedNames.Count().Should().Be(1);
+}
+
+[TestMethod]
+public void ShouldSynchroniseListViewSetSelectedItem()
+{
+  //Arrange
+  Random random = new Random(DateTime.Now.Millisecond);
+  object itemToSelect = this.listView.Items.GetItemAt(random.Next(this.names.Count));
+
+  // Act
+  this.listView.SelectedItem = itemToSelect;
+
+  // Assert
+  this.selectedNames.Count().Should().Be(1);
+}
+
+[TestMethod]
+public void ShouldSynchroniseListViewAddSingleSelectedItem()
+{
+  //Arrange
+  Random random = new Random(DateTime.Now.Millisecond);
+  object itemToSelect = this.listView.Items.GetItemAt(random.Next(this.names.Count));
+
+  // Act
+  this.listView.SelectedItems.Add(itemToSelect);
+
+  // Assert
+  this.selectedNames.Count().Should().Be(1);
+}
+
+[TestMethod]
+public void ShouldSynchroniseListViewAddMultipleSelectedItems()
+{
+  // Act
+  this.listView.SelectedItems.Add(this.listView.Items.GetItemAt(0));
+  this.listView.SelectedItems.Add(this.listView.Items.GetItemAt(1));
+
+  // Assert
+  this.selectedNames.ShouldBeEquivalentTo(this.listView.SelectedItems, opt => opt.WithStrictOrdering());
+}