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Diagram - Node List: Linear Array

This demo shows the Diagram component's capability to load an external tree structure from a linear array.

The component binds to a data object specified by the DataSource method. You should use the KeyExpr and ParentKeyExpr methods because of the data's linear structure. The Diagram uses information from the key fields to transform linear data into a tree.

Backend API
@(Html.DevExtreme().Diagram() .ID("diagram") .Nodes(ns => ns .DataSource(d => d .Array() .Key("ID") .Data(Model) ) .KeyExpr("ID") .TextExpr("Title") .ParentKeyExpr("HeadID") .AutoLayout(al => al .Type(DiagramDataLayoutType.Tree) ) ) .Toolbox(t => t .Groups(g => g .Add().Category(DiagramShapeCategory.General).Title("General") ) ) )
using DevExtreme.NETCore.Demos.Models.SampleData; using Microsoft.AspNetCore.Mvc; namespace DevExtreme.NETCore.Demos.Controllers { public class DiagramController : Controller { public IActionResult NodesArrayPlainStructure() { return View(SampleData.OrgItemsPlain); } } }
var employees = [{ "ID": 1, "Head_ID": 0, "Full_Name": "John Heart", "Prefix": "Mr.", "Title": "CEO", "City": "Los Angeles", "State": "California", "Email": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "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": "[email protected]", "Skype": "kents_DX_skype", "Mobile_Phone": "(562) 555-9282", "Birth_Date": "1972-09-11", "Hire_Date": "2009-04-22" }];
#diagram { height: 725px; }