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Backend API
@using DevExtreme.MVC.Demos.Models.TreeList
@model IEnumerable<Employee>
@(Html.DevExtreme().TreeList<Employee>()
.ID("employees")
.DataSource(Model)
.KeyExpr("ID")
.ParentIdExpr("HeadID")
.HeaderFilter(headerFilter => headerFilter.Visible(true))
.Selection(s => s.Mode(SelectionMode.Single))
.Columns(column => {
column.AddFor(m => m.FullName);
column
.AddFor(m => m.Title)
.HeaderFilter(hf => {
hf.AllowSelectAll(false);
hf.Search(hfs => hfs.Enabled(true));
});
column
.AddFor(m => m.City)
.HeaderFilter(hf => {
hf.Search(hfs => {
hfs
.Enabled(true)
.EditorOptions(new { placeholder = "Search city or state" })
.SearchExpr(new[] { "City", "State" });
});
});
column.AddFor(m => m.State);
column.AddFor(m => m.MobilePhone);
column.AddFor(m => m.HireDate);
})
.ColumnAutoWidth(true)
.ShowRowLines(true)
.ShowBorders(true)
.ExpandedRowKeys(new[] { 1 })
)
using System.Web.Mvc;
using DevExtreme.MVC.Demos.Models.SampleData;
namespace DevExtreme.MVC.Demos.Controllers {
public class TreeListController : Controller {
public ActionResult ColumnHeaderFilter() {
return View(SampleData.TreeListEmployees);
}
}
}
using System;
using System.ComponentModel.DataAnnotations;
namespace DevExtreme.MVC.Demos.Models.TreeList {
public class Employee {
public int ID { get; set; }
[Required]
[Display(Name = "Head")]
public int HeadID { get; set; }
[Required]
public string FullName { get; set; }
[Required]
[Display(Name = "Title")]
public string Prefix { get; set; }
[Required]
[Display(Name = "Position")]
public string Title { get; set; }
[Required]
public string City { get; set; }
public string State { get; set; }
public string Email { get; set; }
public string Skype { get; set; }
public string MobilePhone { get; set; }
public DateTime BirthDate { get; set; }
[Required]
public DateTime HireDate { get; set; }
}
}
using DevExtreme.MVC.Demos.Models.TreeList;
using System;
using System.Collections.Generic;
namespace DevExtreme.MVC.Demos.Models.SampleData {
public partial class SampleData {
public static readonly IEnumerable<Employee> TreeListEmployees = new[] {
new Employee {
ID = 1,
HeadID = 0,
FullName = "John Heart",
Prefix = "Mr.",
Title ="CEO",
City = "Los Angeles",
State = "California",
Email = "jheart@dx-email.com",
Skype = "jheart_DX_skype",
MobilePhone = "(213) 555-9392",
BirthDate = DateTime.Parse("1964/03/16"),
HireDate = DateTime.Parse("1995/01/15")
},
new Employee {
ID = 2,
HeadID = 1,
FullName = "Samantha Bright",
Prefix = "Dr.",
Title ="COO",
City = "Los Angeles",
State = "California",
Email = "samanthab@dx-email.com",
Skype = "samanthab_DX_skype",
MobilePhone = "(213) 555-2858",
BirthDate = DateTime.Parse("1966/05/02"),
HireDate = DateTime.Parse("2004/05/24")
},
new Employee {
ID = 3,
HeadID = 1,
FullName = "Arthur Miller",
Prefix = "Mr.",
Title ="CTO",
City = "Denver",
State = "Colorado",
Email = "arthurm@dx-email.com",
Skype = "arthurm_DX_skype",
MobilePhone = "(310) 555-8583",
BirthDate = DateTime.Parse("1972/07/11"),
HireDate = DateTime.Parse("2007/12/18")
},
new Employee {
ID = 4,
HeadID = 1,
FullName = "Robert Reagan",
Prefix = "Mr.",
Title ="CMO",
City = "Bentonville",
State = "Arkansas",
Email = "robertr@dx-email.com",
Skype = "robertr_DX_skype",
MobilePhone = "(818) 555-2387",
BirthDate = DateTime.Parse("1974/09/07"),
HireDate = DateTime.Parse("2002/11/08")
},
new Employee {
ID = 5,
HeadID = 1,
FullName = "Greta Sims",
Prefix = "Ms.",
Title ="HR Manager",
City = "Atlanta",
State = "Georgia",
Email = "gretas@dx-email.com",
Skype = "gretas_DX_skype",
MobilePhone = "(818) 555-6546",
BirthDate = DateTime.Parse("1977/11/22"),
HireDate = DateTime.Parse("1998/04/23")
},
new Employee {
ID = 6,
HeadID = 3,
FullName = "Brett Wade",
Prefix = "Mr.",
Title ="IT Manager",
City = "Reno",
State = "Nevada",
Email = "brettw@dx-email.com",
Skype = "brettw_DX_skype",
MobilePhone = "(626) 555-0358",
BirthDate = DateTime.Parse("1968/12/01"),
HireDate = DateTime.Parse("2009/03/06")
},
new Employee {
ID = 7,
HeadID = 5,
FullName = "Sandra Johnson",
Prefix = "Mrs.",
Title ="Controller",
City = "Beaver",
State = "Utah",
Email = "sandraj@dx-email.com",
Skype = "sandraj_DX_skype",
MobilePhone = "(562) 555-2082",
BirthDate = DateTime.Parse("1974/11/15"),
HireDate = DateTime.Parse("2005/05/11")
},
new Employee {
ID = 8,
HeadID = 4,
FullName = "Ed Holmes",
Prefix = "Dr.",
Title ="Sales Manager",
City = "Malibu",
State = "California",
Email = "edwardh@dx-email.com",
Skype = "edwardh_DX_skype",
MobilePhone = "(310) 555-1288",
BirthDate = DateTime.Parse("1973/07/14"),
HireDate = DateTime.Parse("2005/06/19")
},
new Employee {
ID = 9,
HeadID = 3,
FullName = "Barb Banks",
Prefix = "Mrs.",
Title ="Support Manager",
City = "Phoenix",
State = "Arizona",
Email = "barbarab@dx-email.com",
Skype = "barbarab_DX_skype",
MobilePhone = "(310) 555-3355",
BirthDate = DateTime.Parse("1979/04/14"),
HireDate = DateTime.Parse("2002/08/07")
},
new Employee {
ID = 10,
HeadID = 2,
FullName = "Kevin Carter",
Prefix = "Mr.",
Title ="Shipping Manager",
City = "San Diego",
State = "California",
Email = "kevinc@dx-email.com",
Skype = "kevinc_DX_skype",
MobilePhone = "(213) 555-2840",
BirthDate = DateTime.Parse("1978/01/09"),
HireDate = DateTime.Parse("2009/08/11")
},
new Employee {
ID = 11,
HeadID = 5,
FullName = "Cindy Stanwick",
Prefix = "Ms.",
Title ="HR Assistant",
City = "Little Rock",
State = "Arkansas",
Email = "cindys@dx-email.com",
Skype = "cindys_DX_skype",
MobilePhone = "(818) 555-6655",
BirthDate = DateTime.Parse("1985/06/05"),
HireDate = DateTime.Parse("2008/03/24")
},
new Employee {
ID = 12,
HeadID = 8,
FullName = "Sammy Hill",
Prefix = "Mr.",
Title ="Sales Assistant",
City = "Pasadena",
State = "California",
Email = "sammyh@dx-email.com",
Skype = "sammyh_DX_skype",
MobilePhone = "(626) 555-7292",
BirthDate = DateTime.Parse("1984/02/17"),
HireDate = DateTime.Parse("2012/02/01")
},
new Employee {
ID = 13,
HeadID = 10,
FullName = "Davey Jones",
Prefix = "Mr.",
Title ="Shipping Assistant",
City = "Pasadena",
State = "California",
Email = "davidj@dx-email.com",
Skype = "davidj_DX_skype",
MobilePhone = "(626) 555-0281",
BirthDate = DateTime.Parse("1983/03/06"),
HireDate = DateTime.Parse("2011/04/24")
},
new Employee {
ID = 14,
HeadID = 10,
FullName = "Victor Norris",
Prefix = "Mr.",
Title ="Shipping Assistant",
City = "Little Rock",
State = "Arkansas",
Email = "victorn@dx-email.com",
Skype = "victorn_DX_skype",
MobilePhone = "(213) 555-9278",
BirthDate = DateTime.Parse("1986/07/23"),
HireDate = DateTime.Parse("2012/07/23")
},
new Employee {
ID = 15,
HeadID = 10,
FullName = "Mary Stern",
Prefix = "Ms.",
Title ="Shipping Assistant",
City = "Beaver",
State = "Utah",
Email = "marys@dx-email.com",
Skype = "marys_DX_skype",
MobilePhone = "(818) 555-7857",
BirthDate = DateTime.Parse("1982/04/08"),
HireDate = DateTime.Parse("2012/08/12")
},
new Employee {
ID = 16,
HeadID = 10,
FullName = "Robin Cosworth",
Prefix = "Mrs.",
Title ="Shipping Assistant",
City = "Los Angeles",
State = "California",
Email = "robinc@dx-email.com",
Skype = "robinc_DX_skype",
MobilePhone = "(818) 555-0942",
BirthDate = DateTime.Parse("1981/06/12"),
HireDate = DateTime.Parse("2012/09/01")
},
new Employee {
ID = 17,
HeadID = 9,
FullName = "Kelly Rodriguez",
Prefix = "Ms.",
Title ="Support Assistant",
City = "Boise",
State = "Idaho",
Email = "kellyr@dx-email.com",
Skype = "kellyr_DX_skype",
MobilePhone = "(818) 555-9248",
BirthDate = DateTime.Parse("1988/05/11"),
HireDate = DateTime.Parse("2012/10/13")
},
new Employee {
ID = 18,
HeadID = 9,
FullName = "James Anderson",
Prefix = "Mr.",
Title ="Support Assistant",
City = "Atlanta",
State = "Georgia",
Email = "jamesa@dx-email.com",
Skype = "jamesa_DX_skype",
MobilePhone = "(323) 555-4702",
BirthDate = DateTime.Parse("1987/01/29"),
HireDate = DateTime.Parse("2012/10/18")
},
new Employee {
ID = 19,
HeadID = 9,
FullName = "Antony Remmen",
Prefix = "Mr.",
Title ="Support Assistant",
City = "Boise",
State = "Idaho",
Email = "anthonyr@dx-email.com",
Skype = "anthonyr_DX_skype",
MobilePhone = "(310) 555-6625",
BirthDate = DateTime.Parse("1986/02/19"),
HireDate = DateTime.Parse("2013/01/19")
},
new Employee {
ID = 20,
HeadID = 8,
FullName = "Olivia Peyton",
Prefix = "Mrs.",
Title ="Sales Assistant",
City = "Atlanta",
State = "Georgia",
Email = "oliviap@dx-email.com",
Skype = "oliviap_DX_skype",
MobilePhone = "(310) 555-2728",
BirthDate = DateTime.Parse("1981/06/03"),
HireDate = DateTime.Parse("2012/05/14")
},
new Employee {
ID = 21,
HeadID = 6,
FullName = "Taylor Riley",
Prefix = "Mr.",
Title ="Network Admin",
City = "San Jose",
State = "California",
Email = "taylorr@dx-email.com",
Skype = "taylorr_DX_skype",
MobilePhone = "(310) 555-7276",
BirthDate = DateTime.Parse("1982/08/14"),
HireDate = DateTime.Parse("2012/04/14")
},
new Employee {
ID = 22,
HeadID = 6,
FullName = "Amelia Harper",
Prefix = "Mrs.",
Title ="Network Admin",
City = "Los Angeles",
State = "California",
Email = "ameliah@dx-email.com",
Skype = "ameliah_DX_skype",
MobilePhone = "(213) 555-4276",
BirthDate = DateTime.Parse("1983/11/19"),
HireDate = DateTime.Parse("2011/02/10")
},
new Employee {
ID = 23,
HeadID = 6,
FullName = "Wally Hobbs",
Prefix = "Mr.",
Title ="Programmer",
City = "Chatsworth",
State = "California",
Email = "wallyh@dx-email.com",
Skype = "wallyh_DX_skype",
MobilePhone = "(818) 555-8872",
BirthDate = DateTime.Parse("1984/12/24"),
HireDate = DateTime.Parse("2011/02/17")
},
new Employee {
ID = 24,
HeadID = 6,
FullName = "Brad Jameson",
Prefix = "Mr.",
Title ="Programmer",
City = "San Fernando",
State = "California",
Email = "bradleyj@dx-email.com",
Skype = "bradleyj_DX_skype",
MobilePhone = "(818) 555-4646",
BirthDate = DateTime.Parse("1988/10/12"),
HireDate = DateTime.Parse("2011/03/02")
},
new Employee {
ID = 25,
HeadID = 6,
FullName = "Karen Goodson",
Prefix = "Miss",
Title ="Programmer",
City = "South Pasadena",
State = "California",
Email = "kareng@dx-email.com",
Skype = "kareng_DX_skype",
MobilePhone = "(626) 555-0908",
BirthDate = DateTime.Parse("1987/04/26"),
HireDate = DateTime.Parse("2011/03/14")
},
new Employee {
ID = 26,
HeadID = 5,
FullName = "Marcus Orbison",
Prefix = "Mr.",
Title ="Travel Coordinator",
City = "Los Angeles",
State = "California",
Email = "marcuso@dx-email.com",
Skype = "marcuso_DX_skype",
MobilePhone = "(213) 555-7098",
BirthDate = DateTime.Parse("1982/03/02"),
HireDate = DateTime.Parse("2005/05/19")
},
new Employee {
ID = 27,
HeadID = 5,
FullName = "Sandy Bright",
Prefix = "Ms.",
Title ="Benefits Coordinator",
City = "Denver",
State = "Colorado",
Email = "sandrab@dx-email.com",
Skype = "sandrab_DX_skype",
MobilePhone = "(818) 555-0524",
BirthDate = DateTime.Parse("1983/09/11"),
HireDate = DateTime.Parse("2005/06/04")
},
new Employee {
ID = 28,
HeadID = 6,
FullName = "Morgan Kennedy",
Prefix = "Mrs.",
Title ="Graphic Designer",
City = "San Fernando Valley",
State = "California",
Email = "morgank@dx-email.com",
Skype = "morgank_DX_skype",
MobilePhone = "(818) 555-8238",
BirthDate = DateTime.Parse("1984/07/17"),
HireDate = DateTime.Parse("2012/01/11")
},
new Employee {
ID = 29,
HeadID = 28,
FullName = "Violet Bailey",
Prefix = "Ms.",
Title ="Jr Graphic Designer",
City = "La Canada",
State = "California",
Email = "violetb@dx-email.com",
Skype = "violetb_DX_skype",
MobilePhone = "(818) 555-2478",
BirthDate = DateTime.Parse("1985/06/10"),
HireDate = DateTime.Parse("2012/01/19")
},
new Employee {
ID = 30,
HeadID = 5,
FullName = "Ken Samuelson",
Prefix = "Dr.",
Title ="Ombudsman",
City = "St. Louis",
State = "Missouri",
Email = "kents@dx-email.com",
Skype = "kents_DX_skype",
MobilePhone = "(562) 555-9282",
BirthDate = DateTime.Parse("1972/09/11"),
HireDate = DateTime.Parse("2009/04/22")
}
};
}
}
#employees {
max-height: 440px;
}
Display Header Filter Icons
Enable the headerFilter.visible property to display header filter icons for all columns. If you want to hide the icon for a specific column, disable the column's allowHeaderFiltering property.
Enable Search Within Header Filters
Users can search values within header filters. To display the search bar, assign true to the search.enabled property in the global headerFilter object or in a column's headerFilter object. You can also specify a comparison operation used to search header filter values. Use the search.mode property.
Change Available Filter Values
Filter values are generated automatically based on column values. You can group them by a custom groupInterval or specify an entirely different dataSource for an individual header filter. Refer to the property descriptions for more information.