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HTML 

              
                <div class="dx-viewport demo-container">
  <div id="treeListContainer"></div>
</div>
!

CSS 

              
                .demo-container {
  padding: 40px;
}

#treeListContainer .dx-treelist-rowsview tr:not(.dx-row-focused) .dx-treelist-empty-space {
  color: #616161;
}

#treeListContainer .dx-bordered-top-view {
  border-radius: 8px 8px 0 0;
  overflow: hidden;
}

#treeListContainer .dx-bordered-bottom-view {
  border-radius: 0 0 8px 8px;
}
!

JS 

              
                $(function() {
  $('#treeListContainer').dxTreeList({
    dataSource: employees,
    columnWidth: 200,
    keyExpr: 'ID',
    expandedRowKeys: [1, 2, 10],
    parentIdExpr: 'Head_ID',
    repaintChangesOnly: true,
    columnAutoWidth: true,
    showRowLines: true,
    showBorders: true,
    scrolling: {
      mode: 'standard'
    },
    columnFixing: {
      enabled: true,
    },
    columns: [
      {
        dataField: 'Title',
        fixed: true,
        fixedPosition: 'right',
        caption: 'Position',
      },
      {
        dataField: 'Full_Name',
        fixed: true,
        width: 250
      },
      'City',
      'State',
      'Mobile_Phone',
      {
        dataField: 'Email',
        fixed: true,
        width: 'auto',
        fixedPosition: 'sticky',
        cellTemplate: function($container, options) {
          return $('<a href="#"/>').text(options.value);
        }
      },
      {
        dataField: 'Hire_Date',
        dataType: 'date',
      },
      {
        dataField: 'Birth_Date',
        dataType: 'date',
      },
      'Skype'
    ],
  });
});


const 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',
}];
!
999px

Console