wpf,CollectionViewSource，使用数据过滤 筛选 功能。

    class TextListBoxVMpublic : ViewModelBase
	{
        public TextListBoxVMpublic()
		{
			var list = this.GetEmployees();
			this.filteredEmploees = new CollectionViewSource();
			this.filteredEmploees.Source = list;
			this.filteredEmploees.Filter += this.EmployeeFilter;
		}

	

		private CollectionViewSource filteredEmploees;
		public CollectionViewSource FilteredEmploees
		{
			get { return filteredEmploees; }
			set { filteredEmploees = value; }
		}

		private string filterText = string.Empty;
		public string FilterText
		{
			get { return filterText; }
			set
			{
				filterText = value;
                Notify("FilterText");
				this.FilteredEmploees.View.Refresh();
			}
		}


		private void EmployeeFilter(object sender, FilterEventArgs e)
		{
			e.Accepted = this.EmployeeFilter(e.Item);
		}

		private bool EmployeeFilter(object item)
		{
			var employee = item as Employee;
			return employee != null && employee.Name.ToLower().Contains(this.FilterText.ToLower());
		}

		private ObservableCollection<Employee> GetEmployees()
		{
			var list = new ObservableCollection<Employee>();

			list.Add(new Employee { Name = "Huon Laprice", Position = "Events Assistant", Team = "Marketing", Office = "USA Office : Boston, MA", Address = "321 Jones Rd , Waltham, MA 04462", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image51.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Keiran Hughes", Position = "Trainee", Team = "Marketing", Office = "Canada Office: Toronto", Address = "110-556 Portage Ave. Winnipeg, R3B 5A7", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image52.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Swen Trommler", Position = "Brand Manager", Team = "Marketing", Office = "United Kingdom Office: London", Address = "15 Bedford Square London WC81C 15JA", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image53.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Valentino Lorenco", Position = "Brand Manager", Team = "Marketing", Office = "Canada Office: Toronto", Address = "110-556 Portage Ave. Winnipeg, R3B 5A7", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image55.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Linda Rodriges", Position = "Customer Advocate", Team = "Marketing", Office = "USA Office : San Diego, CA", Address = "12887 Scripps Summit Ct.", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image54.png", UriKind.RelativeOrAbsolute) });


			list.Add(new Employee { Name = "Elizabeth Brow", Position = "Events Assistant", Team = "Sales", Office = "USA Office : Austin, TX", Address = "Brazos Street, Suite 400", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image56.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Deena Greece", Position = "Trainee", Team = "Sales", Office = "USA Office : Austin, TX", Address = "Brazos Street, Suite 400", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image57.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Janine Labrune", Position = "Events Assistant", Team = "Sales", Office = "Canada Office: Toronto", Address = "Toronto 110-556 Portage Ave. Winnipeg", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image58.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "John Steel", Position = "Events Assistant", Team = "Sales", Office = "Canada Office: Toronto", Address = "Toronto 110-556 Portage Ave. Winnipeg", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image59.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Jaime Yorres", Position = "Trainee", Team = "Sales", Office = "USA Office : Austin, TX", Address = "510 Brazos Street, Suite 400", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image60.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Aria Cruz", Position = "Trainee", Team = "Sales", Office = "San Diego, CA", Address = "12887 Scripps Summit Ct.", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image61.png", UriKind.RelativeOrAbsolute) });



			list.Add(new Employee { Name = "Peter Franken", Position = "Trainee", Team = "Finance", Office = "USA Office : San Diego, CA", Address = "12887 Scripps Summit Ct.", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image62.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Simon Crowther", Position = "Trainee", Team = "Finance", Office = "United Kingdom Office: London", Address = "15 Bedford Square London WC81C 15JA", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image63.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "John Terry", Position = "Brand Manager", Team = "Finance", Office = "United Kingdom Office: London", Address = "15 Bedford Square London WC81C 15JA", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image64.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Michael Holz", Position = "Brand Manager", Team = "Finance", Office = "United Kingdom Office: London", Address = "110-556 Portage Ave. Winnipeg, R3B 5A7", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image65.png", UriKind.RelativeOrAbsolute) });
			list.Add(new Employee { Name = "Georg Pipps", Position = "Brand Manager", Team = "Finance", Office = "Canada Office: Toronto", Address = "15 Bedford Square London WC81C 15JA", PhotoPath = new Uri("../../Images/ListBox/GroupingFiltering/Image66.png", UriKind.RelativeOrAbsolute) });
			
			return list;
		}
	}
    public class Employee
    {
        public string Name { get; set; }
        public string Position { get; set; }
        public string Team { get; set; }
        public string Office { get; set; }
        public string Address { get; set; }
        public Uri PhotoPath { get; set; }
    }
}

　　

<ListBox ItemTemplate="{DynamicResource DataTemplate1}" ItemsSource="{Binding TheSource2.View}"/>

　　

代码很详细，主要使用

e.Accepted  true 或 false 来控制筛选