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    <p>I would create another model part, which represents the dual grouping that you need to have happen:</p> <p>Model Classes:</p> <pre><code>public class EmployeeModel { private readonly Employee _Employee; public DepartmentManager ManagementInfo { get; private set; } public string Name { get { return _Employee.Name; } } public string Address { get { return _Employee.Address; } } public EmployeeModel(Employee employee) { this._Employee = employee; this.ManagementInfo = new DepartmentManager(employee.Department, employee.Manager); } } public class DepartmentManager { public string Department { get; private set; } public string Manager { get; private set; } public DepartmentManager(string dept, string manager) { this.Department = dept; this.Manager= manager; } public override bool Equals(object obj) { var model = obj as DepartmentManager; if(null == model) return false; return Department.Equals(model.Department, StringComparison.InvariantCultureIgnoreCase) &amp;&amp; Manager.Equals(model.Manager, StringComparison.InvariantCultureIgnoreCase); } } </code></pre> <p>XAML:</p> <pre><code> &lt;CollectionViewSource x:Key="cvsEmpsModel" Source="{Binding EmployeesModel}"&gt; &lt;CollectionViewSource.GroupDescriptions&gt; &lt;PropertyGroupDescription PropertyName="ManagementInfo" /&gt; &lt;/CollectionViewSource.GroupDescriptions&gt; &lt;/CollectionViewSource&gt; &lt;DataTemplate DataType="{x:Type models:EmployeeModel}"&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;TextBlock Text="{Binding Name}" /&gt; &lt;TextBlock Text="{Binding Address}" /&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; ... &lt;ListView ItemsSource="{Binding Source={StaticResource cvsEmpsModel}}"&gt; &lt;ListView.GroupStyle&gt; &lt;GroupStyle&gt; &lt;GroupStyle.HeaderTemplate&gt; &lt;DataTemplate&gt; &lt;StackPanel Orientation="Horizontal" Margin="0,10,0,3" DataContext="{Binding Items}"&gt; &lt;TextBlock Text="{Binding Path=ManagementInfo.Manager}" FontWeight="Bold" Margin="3" /&gt; &lt;TextBlock Text="{Binding Path=ManagementInfo.Department, StringFormat='({0})'}" Margin="3" /&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;/GroupStyle.HeaderTemplate&gt; &lt;/GroupStyle&gt; &lt;/ListView.GroupStyle&gt; &lt;/ListView&gt; </code></pre> <p>Then in your Window/ViewModel:</p> <pre><code>this.EmployeesModel = new ObservableCollection&lt;EmployeeModel&gt;(MyListOfEmployersFromDB.Select(e =&gt; new EmployeeModel(e))); </code></pre> <p>Note, I've overriden <code>Equals</code> in the <code>DepartmentManager</code> class, but not <code>GetHashCode</code>, ideally you should do a custom implementation of that. I had to override equals so the grouping view source would correctly group the same entries. You could get rid of this need, buy constructing the <code>DepartmentManager</code> for the same Employees outside of the collection, and pass them into the <code>EmployeeModel</code> ctr.</p>
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