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TreeList

Simple Array: Plain Structure

Documentation
In this demo, the TreeList widget displays data stored in an in-memory array. This array is bound to the widget using the dataSource option. Due to the plain structure of data, the keyExpr and parentIdExpr options should be specified as well. Using the information on key fields, the TreeList transforms plain data into a tree.
@(Html.DevExtreme().TreeList() .ID("employees") .DataSource(new JS("employees")) .KeyExpr("ID") .ParentIdExpr("Head_ID") .Columns(columns => { columns.Add() .DataField("Title") .Caption("Position"); columns.Add().DataField("Full_Name"); columns.Add().DataField("City"); columns.Add().DataField("State"); columns.Add().DataField("Mobile_Phone"); columns.Add() .DataField("Hire_Date") .DataType(GridColumnDataType.Date); }) .ShowRowLines(true) .ColumnAutoWidth(true) .ExpandedRowKeys(new[] { 1 }) ) <script src="~/Scripts/data/employees.js"></script>
using System.Web.Mvc; using DevExtreme.MVC.Demos.Models.SampleData; namespace DevExtreme.MVC.Demos.Controllers { public class TreeListController : Controller { public ActionResult SimpleArrayPlainStructure() { return View(); } } }
var employees = [{ "ID": 1, "Head_ID": 0, "Full_Name": "John Heart", "Prefix": "Mr.", "Title": "CEO", "City": "Los Angeles", "State": "California", "Email": "jheart@dx-email.com", "Skype": "jheart_DX_skype", "Mobile_Phone": "(213) 555-9392", "Birth_Date": "1964-03-16", "Hire_Date": "1995-01-15" }, { "ID": 2, "Head_ID": 1, "Full_Name": "Samantha Bright", "Prefix": "Dr.", "Title": "COO", "City": "Los Angeles", "State": "California", "Email": "samanthab@dx-email.com", "Skype": "samanthab_DX_skype", "Mobile_Phone": "(213) 555-2858", "Birth_Date": "1966-05-02", "Hire_Date": "2004-05-24" }, { "ID": 3, "Head_ID": 1, "Full_Name": "Arthur Miller", "Prefix": "Mr.", "Title": "CTO", "City": "Denver", "State": "Colorado", "Email": "arthurm@dx-email.com", "Skype": "arthurm_DX_skype", "Mobile_Phone": "(310) 555-8583", "Birth_Date": "1972-07-11", "Hire_Date": "2007-12-18" }, { "ID": 4, "Head_ID": 1, "Full_Name": "Robert Reagan", "Prefix": "Mr.", "Title": "CMO", "City": "Bentonville", "State": "Arkansas", "Email": "robertr@dx-email.com", "Skype": "robertr_DX_skype", "Mobile_Phone": "(818) 555-2387", "Birth_Date": "1974-09-07", "Hire_Date": "2002-11-08" }, { "ID": 5, "Head_ID": 1, "Full_Name": "Greta Sims", "Prefix": "Ms.", "Title": "HR Manager", "City": "Atlanta", "State": "Georgia", "Email": "gretas@dx-email.com", "Skype": "gretas_DX_skype", "Mobile_Phone": "(818) 555-6546", "Birth_Date": "1977-11-22", "Hire_Date": "1998-04-23" }, { "ID": 6, "Head_ID": 3, "Full_Name": "Brett Wade", "Prefix": "Mr.", "Title": "IT Manager", "City": "Reno", "State": "Nevada", "Email": "brettw@dx-email.com", "Skype": "brettw_DX_skype", "Mobile_Phone": "(626) 555-0358", "Birth_Date": "1968-12-01", "Hire_Date": "2009-03-06" }, { "ID": 7, "Head_ID": 5, "Full_Name": "Sandra Johnson", "Prefix": "Mrs.", "Title": "Controller", "City": "Beaver", "State": "Utah", "Email": "sandraj@dx-email.com", "Skype": "sandraj_DX_skype", "Mobile_Phone": "(562) 555-2082", "Birth_Date": "1974-11-15", "Hire_Date": "2005-05-11" }, { "ID": 8, "Head_ID": 4, "Full_Name": "Ed Holmes", "Prefix": "Dr.", "Title": "Sales Manager", "City": "Malibu", "State": "California", "Email": "edwardh@dx-email.com", "Skype": "edwardh_DX_skype", "Mobile_Phone": "(310) 555-1288", "Birth_Date": "1973-07-14", "Hire_Date": "2005-06-19" }, { "ID": 9, "Head_ID": 3, "Full_Name": "Barb Banks", "Prefix": "Mrs.", "Title": "Support Manager", "City": "Phoenix", "State": "Arizona", "Email": "barbarab@dx-email.com", "Skype": "barbarab_DX_skype", "Mobile_Phone": "(310) 555-3355", "Birth_Date": "1979-04-14", "Hire_Date": "2002-08-07" }, { "ID": 10, "Head_ID": 2, "Full_Name": "Kevin Carter", "Prefix": "Mr.", "Title": "Shipping Manager", "City": "San Diego", "State": "California", "Email": "kevinc@dx-email.com", "Skype": "kevinc_DX_skype", "Mobile_Phone": "(213) 555-2840", "Birth_Date": "1978-01-09", "Hire_Date": "2009-08-11" }, { "ID": 11, "Head_ID": 5, "Full_Name": "Cindy Stanwick", "Prefix": "Ms.", "Title": "HR Assistant", "City": "Little Rock", "State": "Arkansas", "Email": "cindys@dx-email.com", "Skype": "cindys_DX_skype", "Mobile_Phone": "(818) 555-6655", "Birth_Date": "1985-06-05", "Hire_Date": "2008-03-24" }, { "ID": 12, "Head_ID": 8, "Full_Name": "Sammy Hill", "Prefix": "Mr.", "Title": "Sales Assistant", "City": "Pasadena", "State": "California", "Email": "sammyh@dx-email.com", "Skype": "sammyh_DX_skype", "Mobile_Phone": "(626) 555-7292", "Birth_Date": "1984-02-17", "Hire_Date": "2012-02-01" }, { "ID": 13, "Head_ID": 10, "Full_Name": "Davey Jones", "Prefix": "Mr.", "Title": "Shipping Assistant", "City": "Pasadena", "State": "California", "Email": "davidj@dx-email.com", "Skype": "davidj_DX_skype", "Mobile_Phone": "(626) 555-0281", "Birth_Date": "1983-03-06", "Hire_Date": "2011-04-24" }, { "ID": 14, "Head_ID": 10, "Full_Name": "Victor Norris", "Prefix": "Mr.", "Title": "Shipping Assistant", "City": "Little Rock", "State": "Arkansas", "Email": "victorn@dx-email.com", "Skype": "victorn_DX_skype", "Mobile_Phone": "(213) 555-9278", "Birth_Date": "1986-07-23", "Hire_Date": "2012-07-23" }, { "ID": 15, "Head_ID": 10, "Full_Name": "Mary Stern", "Prefix": "Ms.", "Title": "Shipping Assistant", "City": "Beaver", "State": "Utah", "Email": "marys@dx-email.com", "Skype": "marys_DX_skype", "Mobile_Phone": "(818) 555-7857", "Birth_Date": "1982-04-08", "Hire_Date": "2012-08-12" }, { "ID": 16, "Head_ID": 10, "Full_Name": "Robin Cosworth", "Prefix": "Mrs.", "Title": "Shipping Assistant", "City": "Los Angeles", "State": "California", "Email": "robinc@dx-email.com", "Skype": "robinc_DX_skype", "Mobile_Phone": "(818) 555-0942", "Birth_Date": "1981-06-12", "Hire_Date": "2012-09-01" }, { "ID": 17, "Head_ID": 9, "Full_Name": "Kelly Rodriguez", "Prefix": "Ms.", "Title": "Support Assistant", "City": "Boise", "State": "Idaho", "Email": "kellyr@dx-email.com", "Skype": "kellyr_DX_skype", "Mobile_Phone": "(818) 555-9248", "Birth_Date": "1988-05-11", "Hire_Date": "2012-10-13" }, { "ID": 18, "Head_ID": 9, "Full_Name": "James Anderson", "Prefix": "Mr.", "Title": "Support Assistant", "City": "Atlanta", "State": "Georgia", "Email": "jamesa@dx-email.com", "Skype": "jamesa_DX_skype", "Mobile_Phone": "(323) 555-4702", "Birth_Date": "1987-01-29", "Hire_Date": "2012-10-18" }, { "ID": 19, "Head_ID": 9, "Full_Name": "Antony Remmen", "Prefix": "Mr.", "Title": "Support Assistant", "City": "Boise", "State": "Idaho", "Email": "anthonyr@dx-email.com", "Skype": "anthonyr_DX_skype", "Mobile_Phone": "(310) 555-6625", "Birth_Date": "1986-02-19", "Hire_Date": "2013-01-19" }, { "ID": 20, "Head_ID": 8, "Full_Name": "Olivia Peyton", "Prefix": "Mrs.", "Title": "Sales Assistant", "City": "Atlanta", "State": "Georgia", "Email": "oliviap@dx-email.com", "Skype": "oliviap_DX_skype", "Mobile_Phone": "(310) 555-2728", "Birth_Date": "1981-06-03", "Hire_Date": "2012-05-14" }, { "ID": 21, "Head_ID": 6, "Full_Name": "Taylor Riley", "Prefix": "Mr.", "Title": "Network Admin", "City": "San Jose", "State": "California", "Email": "taylorr@dx-email.com", "Skype": "taylorr_DX_skype", "Mobile_Phone": "(310) 555-7276", "Birth_Date": "1982-08-14", "Hire_Date": "2012-04-14" }, { "ID": 22, "Head_ID": 6, "Full_Name": "Amelia Harper", "Prefix": "Mrs.", "Title": "Network Admin", "City": "Los Angeles", "State": "California", "Email": "ameliah@dx-email.com", "Skype": "ameliah_DX_skype", "Mobile_Phone": "(213) 555-4276", "Birth_Date": "1983-11-19", "Hire_Date": "2011-02-10" }, { "ID": 23, "Head_ID": 6, "Full_Name": "Wally Hobbs", "Prefix": "Mr.", "Title": "Programmer", "City": "Chatsworth", "State": "California", "Email": "wallyh@dx-email.com", "Skype": "wallyh_DX_skype", "Mobile_Phone": "(818) 555-8872", "Birth_Date": "1984-12-24", "Hire_Date": "2011-02-17" }, { "ID": 24, "Head_ID": 6, "Full_Name": "Brad Jameson", "Prefix": "Mr.", "Title": "Programmer", "City": "San Fernando", "State": "California", "Email": "bradleyj@dx-email.com", "Skype": "bradleyj_DX_skype", "Mobile_Phone": "(818) 555-4646", "Birth_Date": "1988-10-12", "Hire_Date": "2011-03-02" }, { "ID": 25, "Head_ID": 6, "Full_Name": "Karen Goodson", "Prefix": "Miss", "Title": "Programmer", "City": "South Pasadena", "State": "California", "Email": "kareng@dx-email.com", "Skype": "kareng_DX_skype", "Mobile_Phone": "(626) 555-0908", "Birth_Date": "1987-04-26", "Hire_Date": "2011-03-14" }, { "ID": 26, "Head_ID": 5, "Full_Name": "Marcus Orbison", "Prefix": "Mr.", "Title": "Travel Coordinator", "City": "Los Angeles", "State": "California", "Email": "marcuso@dx-email.com", "Skype": "marcuso_DX_skype", "Mobile_Phone": "(213) 555-7098", "Birth_Date": "1982-03-02", "Hire_Date": "2005-05-19" }, { "ID": 27, "Head_ID": 5, "Full_Name": "Sandy Bright", "Prefix": "Ms.", "Title": "Benefits Coordinator", "City": "Denver", "State": "Colorado", "Email": "sandrab@dx-email.com", "Skype": "sandrab_DX_skype", "Mobile_Phone": "(818) 555-0524", "Birth_Date": "1983-09-11", "Hire_Date": "2005-06-04" }, { "ID": 28, "Head_ID": 6, "Full_Name": "Morgan Kennedy", "Prefix": "Mrs.", "Title": "Graphic Designer", "City": "San Fernando Valley", "State": "California", "Email": "morgank@dx-email.com", "Skype": "morgank_DX_skype", "Mobile_Phone": "(818) 555-8238", "Birth_Date": "1984-07-17", "Hire_Date": "2012-01-11" }, { "ID": 29, "Head_ID": 28, "Full_Name": "Violet Bailey", "Prefix": "Ms.", "Title": "Jr Graphic Designer", "City": "La Canada", "State": "California", "Email": "violetb@dx-email.com", "Skype": "violetb_DX_skype", "Mobile_Phone": "(818) 555-2478", "Birth_Date": "1985-06-10", "Hire_Date": "2012-01-19" }, { "ID": 30, "Head_ID": 5, "Full_Name": "Ken Samuelson", "Prefix": "Dr.", "Title": "Ombudsman", "City": "St. Louis", "State": "Missouri", "Email": "kents@dx-email.com", "Skype": "kents_DX_skype", "Mobile_Phone": "(562) 555-9282", "Birth_Date": "1972-09-11", "Hire_Date": "2009-04-22" }];
#employees { max-height: 440px; }