Please note that this control has been deprecated and replaced with the Grid component, and as such, we recommend migrating to that control. This will not be receiving any new features, bug fixes will be deprioritized. For help or questions on migrating your codebase to the Data Grid, please contact support.

Blazor Row Grouping

The Ignite UI for Blazor Data Table / Data Grid lets you group rows into a ‘sticky header’ Row Group. This is similar to the Group By feature in Microsoft Outlook, which is an easy way to visually group data based on your own criteria.

Blazor Row Group-By Area Example

EXAMPLE

MODULES

DATA

RAZOR

CSS

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbDataGridModule),
                typeof(IgbGridColumnOptionsModule),
                typeof(IgbColumnGroupingModule)
);
            await builder.Build().RunAsync();
        }
    }
}csCOPY CODE

// NOTE this file contains multiple data sources:


// Data Source #1
using System;
using System.Collections.Generic;
using System.Linq;

namespace Infragistics.Samples
{
    public static class DataGenerator
    {
        readonly static string[] websites = { ".com", ".gov", ".edu", ".org" };
        readonly static string[] emails = { "gmail.com", "yahoo.com", "twitter.com" };
        readonly static string[] genders = { "male", "female" };
        readonly static string[] maleNames = { "Kyle", "Oscar", "Ralph", "Mike", "Bill", "Frank", "Howard", "Jack", "Larry", "Pete", "Steve", "Vince", "Mark", "Alex", "Max", "Brian", "Chris", "Andrew", "Martin", "Mike", "Steve", "Glenn", "Bruce" };
        readonly static string[] femaleNames = { "Gina", "Irene", "Katie", "Brenda", "Casey", "Fiona", "Holly", "Kate", "Liz", "Pamela", "Nelly", "Marisa", "Monica", "Anna", "Jessica", "Sofia", "Isabella", "Margo", "Jane", "Audrey", "Sally", "Melanie", "Greta", "Aurora", "Sally" };
        readonly static string[] lastNames = { "Adams", "Crowley", "Ellis", "Martinez", "Irvine", "Maxwell", "Clark", "Owens", "Rooney", "Lincoln", "Thomas", "Spacey", "MOrgan", "King", "Newton", "Fitzgerald", "Holmes", "Jefferson", "Landry", "Berry", "Perez", "Spencer", "Starr", "Carter", "Edwards", "Stark", "Johnson", "Fitz", "Chief", "Blanc", "Perry", "Stone", "Williams", "Lane", "Jobs", "Adams", "Power", "Tesla" };
        readonly static string[] countries = { "USA", "UK", "France", "Canada", "Poland" };
        readonly static string[] citiesUS = { "New York", "Los Angeles", "Miami", "San Francisco", "San Diego", "Las Vegas" };
        readonly static string[] citiesUK = { "London", "Liverpool", "Manchester" };
        readonly static string[] citiesFR = { "Paris", "Marseille", "Lyon" };
        readonly static string[] citiesCA = { "Toronto", "Vancouver", "Montreal" };
        readonly static string[] citiesPL = { "Krakow", "Warsaw", "Wroclaw", "Gdansk" };
        readonly static string[] citiesJP = { "Tokyo", "Osaka", "Kyoto", "Yokohama" };
        readonly static string[] citiesGR = { "Berlin", "Bonn", "Cologne", "Munich", "Hamburg" };
        readonly static string[] roadSuffixes = { "Road", "Street", "Way" };
        readonly static string[] roadNames = { "Main", "Garden", "Broad", "Oak", "Cedar", "Park", "Pine", "Elm", "Market", "Hill" };

        public static Random Rand = new Random();

        public static string GetWebsite()
        {
            return GetItem(websites);
        }

        public static string GetEmail()
        {
            return GetItem(emails);
        }

        public static double GetNumber(double min, double max)
        {
            return Math.Round(min + (Rand.NextDouble() * (max - min)));
        }

        public static int GetInteger(double min, double max)
        {
            return (int)GetNumber(min, max);
        }

        public static string GetPhone()
        {
            var phoneCode = GetNumber(100, 900);
            var phoneNum1 = GetNumber(100, 900);
            var phoneNum2 = GetNumber(1000, 9000);
            var phone = phoneCode + "-" + phoneNum1 + "-" + phoneNum2;
            return phone;
        }

        public static string GetGender()
        {
            return GetItem(genders);
        }

        public static string GetNameFirst(string gender)
        {
            if (gender == "male")
                return GetItem(maleNames);
            else
                return GetItem(femaleNames);
        }

        public static string GetNameLast()
        {
            return GetItem(lastNames);
        }

        public static string GetItem(string[] array)
        {
            var index = (int)Math.Round(GetNumber(0, array.Length - 1));
            return array[index];
        }

        public static string GetCountry()
        {
            return GetItem(countries);
        }

        public static string GetCity(string country)
        {
            if (country == "Canada")
            {
                return GetItem(citiesCA);
            }
            else if (country == "France")
            {
                return GetItem(citiesFR);
            }
            else if (country == "Poland")
            {
                return GetItem(citiesPL);
            }
            else if (country == "USA")
            {
                return GetItem(citiesUS);
            }
            else if (country == "Japan")
            {
                return GetItem(citiesJP);
            }
            else if (country == "Germany")
            {
                return GetItem(citiesGR);
            }
            else
            { // if (country === "United Kingdom") {
                return GetItem(citiesUK);
            }
        }

        public static string GetStreet()
        {
            var num = Math.Round(GetNumber(100, 300)).ToString();
            var road = GetItem(roadNames);
            var suffix = GetItem(roadSuffixes);
            return num + " " + road + " " + suffix;
        }

        public static DateTime GetBirthday()
        {
            var year = DateTime.Now.Year - GetInteger(30, 50);
            var month = GetNumber(10, 12);
            var day = GetNumber(20, 27);
            return new DateTime(year, (int)month, (int)day);
        }

        public static DateTime GetDate()
        {
            var year = DateTime.Now.Year;
            var month = GetNumber(10, 12);
            var day = GetNumber(20, 27);
            return new DateTime(year, (int)month, (int)day);
        }

        public static string Pad(int num, int size)
        {
            var s = num + "";
            while (s.Length < size)
            {
                s = "0" + s;
            }
            return s;
        }

        public static string GetPhotoMale(int id)
        {
            return "https://static.infragistics.com/xplatform/images/people/GUY" + Pad(id, 2) + ".png";
        }

        public static string GetPhotoFemale(int id)
        {
            return "https://static.infragistics.com/xplatform/images/people/GIRL" + Pad(id, 2) + ".png";
        }

        private static int maleCount = 0;
        private static int femaleCount = 0;
        public static string GetPhoto(string gender)
        {
            if (gender == "male")
            {
                maleCount++;
                if (maleCount > 24) maleCount = 1;
                return GetPhotoMale(maleCount);
            }
            else
            {
                femaleCount++;
                if (femaleCount > 24) femaleCount = 1;
                return GetPhotoFemale(femaleCount);
            }
        }

        public static string GetGenderPhoto(string gender)
        {
            return "https://static.infragistics.com/xplatform/images/genders/" + gender + ".png";
        }

        public static string GetCountryFlag(string country)
        {
            return "https://static.infragistics.com/xplatform/images/flags/" + country + ".png";
        }

        public static string GetIncomeRange(double salary)
        {
            if (salary < 50000)
            {
                return "Low";
            }
            else if (salary < 100000)
            {
                return "Average";
            }
            else
            {
                return "High";
            }
        }

    }

}


// Data Source #2
using System;
using System.Collections.Generic;
using System.ComponentModel;

namespace Infragistics.Samples
{
    public class Employee : INotifyPropertyChanged
    {
        public string ID { get; set; }
        public string Address { get; set; }
        public double Age { get; set; }
        public string Gender { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Name { get; set; }
        public string Street { get; set; }
        public string City { get; set; }
        public string Email { get; set; }
        public string Phone { get; set; }
        public string Photo { get; set; }
        public double Salary { get; set; }
        public double Sales { get; set; }
        public string Income { get; set; }
        public int Index { get; set; }

        public DateTime Birthday { get; set; }
        public List<Productivity> Productivity { get; set; }

        private string _Country;
        public string Country
        {
            get { return _Country; }
            set { if (_Country != value) { OnCountryChanged(value); } }
        }

        public string CountryFlag { get; set; }

        protected void OnCountryChanged(string countryName)
        {
            // syncronizing country name and country flag
            _Country = countryName;
            CountryFlag = DataGenerator.GetCountryFlag(countryName);
            City = DataGenerator.GetCity(countryName);
            OnPropertyChanged("Country");
        }

        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
    }

    public class Productivity
    {
        public double Value { get; set; }
        public int Week { get; set; }
    }

    public static class EmployeeData
    {
        public static List<Employee> Create(int? count, bool? useProductivity)
        {
            if (count == null) count = 100;

            var employees = new List<Employee>();
            for (int i = 0; i < count; i++)
            {
                var age = Math.Round(DataGenerator.GetNumber(20, 40));
                var gender = DataGenerator.GetGender();
                var firstName = DataGenerator.GetNameFirst(gender);
                var lastName = DataGenerator.GetNameLast();
                var street = DataGenerator.GetStreet();
                var country = DataGenerator.GetCountry();
                var city = DataGenerator.GetCity(country);
                var email = firstName.ToLower() + "@" + DataGenerator.GetEmail();
                var photoPath = DataGenerator.GetPhoto(gender);

                var employee = new Employee
                {
                    Index = i,
                    Address = street + ", " + city,
                    Age = age,
                    Birthday = DataGenerator.GetBirthday(),
                    City = city,
                    Email = email,
                    Gender = gender,
                    ID = DataGenerator.Pad(1001 + i, 4),
                    FirstName = firstName,
                    LastName = lastName,
                    Name = firstName + " " + lastName,
                    Photo = photoPath,
                    Phone = DataGenerator.GetPhone(),
                    Street = DataGenerator.GetStreet(),
                    Salary = DataGenerator.GetNumber(40, 200) * 1000,
                    Sales = DataGenerator.GetNumber(200, 980) * 1000,
                };
                employee.Country = country;

                employee.Income = DataGenerator.GetIncomeRange(employee.Salary);

                if (useProductivity.HasValue && useProductivity.Value)
                {
                    employee.Productivity = GetProductivity(52);
                }
                employees.Add(employee);
            }

            return employees;
        }

        public static List<Productivity> GetProductivity(int weekCount)
        {
            var productivity = new List<Productivity>();

            for (var w = 1; w <= weekCount; w++)
            {
                var value = DataGenerator.GetNumber(-50, 50);
                var prod = new Productivity
                {
                    Value = value,
                    Week = w
                };
                productivity.Add(prod);
            };

            return productivity;
        }
    }
}
csCOPY CODE

@using IgniteUI.Blazor.Controls

<div class="container vertical">

    <div class="container vertical">

        @if (Data != null)
        {
            <div style="overflow: hidden">
                <IgbDataGrid Height="100%" Width="100%"
                      DataSource="Data"
                      AutoGenerateColumns="false"
                      IsGroupCollapsable="true"
                      IsGroupByAreaVisible="true">
                    <IgbTextColumn Field="Name" Width="@("*>120")" />
                    <IgbNumericColumn Field="Age" Width="@("*>110")" />
                    <IgbDateTimeColumn Field="Birthday" HorizontalAlignment="CellContentHorizontalAlignment.Center" Width="@("*>160")"/>
                    <IgbTextColumn IsEditable="false" Field="Country" HeaderText="Country" Width="@("*>160")"
                                    PaddingTop="5" PaddingBottom="5" ContentOpacity="1" HorizontalAlignment="CellContentHorizontalAlignment.Center"/>
                    <IgbTextColumn Field="Street" />
                    <IgbNumericColumn Field="Salary" HeaderText="Salary" Width="@("*>130")"
                                    PositivePrefix="$" ShowGroupingSeparator="true"/>
                    <IgbTextColumn Field="City" />
                    <IgbNumericColumn Field="Salary" PositivePrefix="$" ShowGroupingSeparator="true" MaxFractionDigits="0" MinFractionDigits="0" />
                </IgbDataGrid>
            </div>
        }
    </div>
</div>

@code {

    private List<Employee> Data;

    protected override void OnInitialized()
    {

        this.Data = EmployeeData.Create(200, false);
    }

}razorCOPY CODE

/* 
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/cssCOPY CODE

Group-By Area

Set IsGroupByAreaVisible property on the DataGrid to True, as shown in the example above, to the user interface. The group-by area allows users more options to group and sort columns without interact when interacting the DataGrid indirectly. Groups can be positioned and reordered based on the users needs. This area also populates when columns are programmatically added as GroupDescriptions on the DataGrid as well.

Using Group Descriptions Example

EXAMPLE

MODULES

DATA

RAZOR

CSS

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbDataGridModule),
                typeof(IgbGridColumnOptionsModule),
                typeof(IgbColumnGroupingModule)
);
            await builder.Build().RunAsync();
        }
    }
}csCOPY CODE

// NOTE this file contains multiple data sources:


// Data Source #1
using System;
using System.Collections.Generic;
using System.Linq;

namespace Infragistics.Samples
{
    public static class DataGenerator
    {
        readonly static string[] websites = { ".com", ".gov", ".edu", ".org" };
        readonly static string[] emails = { "gmail.com", "yahoo.com", "twitter.com" };
        readonly static string[] genders = { "male", "female" };
        readonly static string[] maleNames = { "Kyle", "Oscar", "Ralph", "Mike", "Bill", "Frank", "Howard", "Jack", "Larry", "Pete", "Steve", "Vince", "Mark", "Alex", "Max", "Brian", "Chris", "Andrew", "Martin", "Mike", "Steve", "Glenn", "Bruce" };
        readonly static string[] femaleNames = { "Gina", "Irene", "Katie", "Brenda", "Casey", "Fiona", "Holly", "Kate", "Liz", "Pamela", "Nelly", "Marisa", "Monica", "Anna", "Jessica", "Sofia", "Isabella", "Margo", "Jane", "Audrey", "Sally", "Melanie", "Greta", "Aurora", "Sally" };
        readonly static string[] lastNames = { "Adams", "Crowley", "Ellis", "Martinez", "Irvine", "Maxwell", "Clark", "Owens", "Rooney", "Lincoln", "Thomas", "Spacey", "MOrgan", "King", "Newton", "Fitzgerald", "Holmes", "Jefferson", "Landry", "Berry", "Perez", "Spencer", "Starr", "Carter", "Edwards", "Stark", "Johnson", "Fitz", "Chief", "Blanc", "Perry", "Stone", "Williams", "Lane", "Jobs", "Adams", "Power", "Tesla" };
        readonly static string[] countries = { "USA", "UK", "France", "Canada", "Poland" };
        readonly static string[] citiesUS = { "New York", "Los Angeles", "Miami", "San Francisco", "San Diego", "Las Vegas" };
        readonly static string[] citiesUK = { "London", "Liverpool", "Manchester" };
        readonly static string[] citiesFR = { "Paris", "Marseille", "Lyon" };
        readonly static string[] citiesCA = { "Toronto", "Vancouver", "Montreal" };
        readonly static string[] citiesPL = { "Krakow", "Warsaw", "Wroclaw", "Gdansk" };
        readonly static string[] citiesJP = { "Tokyo", "Osaka", "Kyoto", "Yokohama" };
        readonly static string[] citiesGR = { "Berlin", "Bonn", "Cologne", "Munich", "Hamburg" };
        readonly static string[] roadSuffixes = { "Road", "Street", "Way" };
        readonly static string[] roadNames = { "Main", "Garden", "Broad", "Oak", "Cedar", "Park", "Pine", "Elm", "Market", "Hill" };

        public static Random Rand = new Random();

        public static string GetWebsite()
        {
            return GetItem(websites);
        }

        public static string GetEmail()
        {
            return GetItem(emails);
        }

        public static double GetNumber(double min, double max)
        {
            return Math.Round(min + (Rand.NextDouble() * (max - min)));
        }

        public static int GetInteger(double min, double max)
        {
            return (int)GetNumber(min, max);
        }

        public static string GetPhone()
        {
            var phoneCode = GetNumber(100, 900);
            var phoneNum1 = GetNumber(100, 900);
            var phoneNum2 = GetNumber(1000, 9000);
            var phone = phoneCode + "-" + phoneNum1 + "-" + phoneNum2;
            return phone;
        }

        public static string GetGender()
        {
            return GetItem(genders);
        }

        public static string GetNameFirst(string gender)
        {
            if (gender == "male")
                return GetItem(maleNames);
            else
                return GetItem(femaleNames);
        }

        public static string GetNameLast()
        {
            return GetItem(lastNames);
        }

        public static string GetItem(string[] array)
        {
            var index = (int)Math.Round(GetNumber(0, array.Length - 1));
            return array[index];
        }

        public static string GetCountry()
        {
            return GetItem(countries);
        }

        public static string GetCity(string country)
        {
            if (country == "Canada")
            {
                return GetItem(citiesCA);
            }
            else if (country == "France")
            {
                return GetItem(citiesFR);
            }
            else if (country == "Poland")
            {
                return GetItem(citiesPL);
            }
            else if (country == "USA")
            {
                return GetItem(citiesUS);
            }
            else if (country == "Japan")
            {
                return GetItem(citiesJP);
            }
            else if (country == "Germany")
            {
                return GetItem(citiesGR);
            }
            else
            { // if (country === "United Kingdom") {
                return GetItem(citiesUK);
            }
        }

        public static string GetStreet()
        {
            var num = Math.Round(GetNumber(100, 300)).ToString();
            var road = GetItem(roadNames);
            var suffix = GetItem(roadSuffixes);
            return num + " " + road + " " + suffix;
        }

        public static DateTime GetBirthday()
        {
            var year = DateTime.Now.Year - GetInteger(30, 50);
            var month = GetNumber(10, 12);
            var day = GetNumber(20, 27);
            return new DateTime(year, (int)month, (int)day);
        }

        public static DateTime GetDate()
        {
            var year = DateTime.Now.Year;
            var month = GetNumber(10, 12);
            var day = GetNumber(20, 27);
            return new DateTime(year, (int)month, (int)day);
        }

        public static string Pad(int num, int size)
        {
            var s = num + "";
            while (s.Length < size)
            {
                s = "0" + s;
            }
            return s;
        }

        public static string GetPhotoMale(int id)
        {
            return "https://static.infragistics.com/xplatform/images/people/GUY" + Pad(id, 2) + ".png";
        }

        public static string GetPhotoFemale(int id)
        {
            return "https://static.infragistics.com/xplatform/images/people/GIRL" + Pad(id, 2) + ".png";
        }

        private static int maleCount = 0;
        private static int femaleCount = 0;
        public static string GetPhoto(string gender)
        {
            if (gender == "male")
            {
                maleCount++;
                if (maleCount > 24) maleCount = 1;
                return GetPhotoMale(maleCount);
            }
            else
            {
                femaleCount++;
                if (femaleCount > 24) femaleCount = 1;
                return GetPhotoFemale(femaleCount);
            }
        }

        public static string GetGenderPhoto(string gender)
        {
            return "https://static.infragistics.com/xplatform/images/genders/" + gender + ".png";
        }

        public static string GetCountryFlag(string country)
        {
            return "https://static.infragistics.com/xplatform/images/flags/" + country + ".png";
        }

        public static string GetIncomeRange(double salary)
        {
            if (salary < 50000)
            {
                return "Low";
            }
            else if (salary < 100000)
            {
                return "Average";
            }
            else
            {
                return "High";
            }
        }

    }

}


// Data Source #2
using System;
using System.Collections.Generic;
using System.ComponentModel;

namespace Infragistics.Samples
{
    public class Employee : INotifyPropertyChanged
    {
        public string ID { get; set; }
        public string Address { get; set; }
        public double Age { get; set; }
        public string Gender { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Name { get; set; }
        public string Street { get; set; }
        public string City { get; set; }
        public string Email { get; set; }
        public string Phone { get; set; }
        public string Photo { get; set; }
        public double Salary { get; set; }
        public double Sales { get; set; }
        public string Income { get; set; }
        public int Index { get; set; }

        public DateTime Birthday { get; set; }
        public List<Productivity> Productivity { get; set; }

        private string _Country;
        public string Country
        {
            get { return _Country; }
            set { if (_Country != value) { OnCountryChanged(value); } }
        }

        public string CountryFlag { get; set; }

        protected void OnCountryChanged(string countryName)
        {
            // syncronizing country name and country flag
            _Country = countryName;
            CountryFlag = DataGenerator.GetCountryFlag(countryName);
            City = DataGenerator.GetCity(countryName);
            OnPropertyChanged("Country");
        }

        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
    }

    public class Productivity
    {
        public double Value { get; set; }
        public int Week { get; set; }
    }

    public static class EmployeeData
    {
        public static List<Employee> Create(int? count, bool? useProductivity)
        {
            if (count == null) count = 100;

            var employees = new List<Employee>();
            for (int i = 0; i < count; i++)
            {
                var age = Math.Round(DataGenerator.GetNumber(20, 40));
                var gender = DataGenerator.GetGender();
                var firstName = DataGenerator.GetNameFirst(gender);
                var lastName = DataGenerator.GetNameLast();
                var street = DataGenerator.GetStreet();
                var country = DataGenerator.GetCountry();
                var city = DataGenerator.GetCity(country);
                var email = firstName.ToLower() + "@" + DataGenerator.GetEmail();
                var photoPath = DataGenerator.GetPhoto(gender);

                var employee = new Employee
                {
                    Index = i,
                    Address = street + ", " + city,
                    Age = age,
                    Birthday = DataGenerator.GetBirthday(),
                    City = city,
                    Email = email,
                    Gender = gender,
                    ID = DataGenerator.Pad(1001 + i, 4),
                    FirstName = firstName,
                    LastName = lastName,
                    Name = firstName + " " + lastName,
                    Photo = photoPath,
                    Phone = DataGenerator.GetPhone(),
                    Street = DataGenerator.GetStreet(),
                    Salary = DataGenerator.GetNumber(40, 200) * 1000,
                    Sales = DataGenerator.GetNumber(200, 980) * 1000,
                };
                employee.Country = country;

                employee.Income = DataGenerator.GetIncomeRange(employee.Salary);

                if (useProductivity.HasValue && useProductivity.Value)
                {
                    employee.Productivity = GetProductivity(52);
                }
                employees.Add(employee);
            }

            return employees;
        }

        public static List<Productivity> GetProductivity(int weekCount)
        {
            var productivity = new List<Productivity>();

            for (var w = 1; w <= weekCount; w++)
            {
                var value = DataGenerator.GetNumber(-50, 50);
                var prod = new Productivity
                {
                    Value = value,
                    Week = w
                };
                productivity.Add(prod);
            };

            return productivity;
        }
    }
}
csCOPY CODE

@using IgniteUI.Blazor.Controls

<div class="container vertical">

    <div class="container vertical">
        <div class="options horizontal">
            <span class="options-item">Group Header Display Mode: </span>
            <select class="options-item" @bind="GroupHeaderClickAction">
                <option>@GroupHeaderDisplayMode.Combined</option>
                <option>@GroupHeaderDisplayMode.Split</option>
            </select>

    </div>

        @if (Data != null)
        {
            <div style="overflow: hidden">
                <IgbDataGrid Height="100%" Width="100%"
                      @ref="@DataGridRef"
                      DataSource="Data"
                      AutoGenerateColumns="false"
                      IsGroupCollapsable="true"
                      GroupHeaderDisplayMode="@GroupHeaderClickAction">
                    <IgbTextColumn Field="Name" Width="@("*>120")" />
                    <IgbNumericColumn Field="Age" Width="@("*>110")" />
                    <IgbDateTimeColumn Field="Birthday" HorizontalAlignment="CellContentHorizontalAlignment.Center" Width="@("*>160")"/>
                    <IgbTextColumn IsEditable="false" Field="Country" HeaderText="Country" Width="@("*>160")"
                                    PaddingTop="5" PaddingBottom="5" ContentOpacity="1" HorizontalAlignment="CellContentHorizontalAlignment.Center"/>
                    <IgbTextColumn Field="Street" />
                    <IgbNumericColumn Field="Salary" HeaderText="Salary" Width="@("*>130")"
                                    PositivePrefix="$" ShowGroupingSeparator="true"/>
                    <IgbTextColumn Field="City" />
                    <IgbNumericColumn Field="Salary" PositivePrefix="$" ShowGroupingSeparator="true" MaxFractionDigits="0" MinFractionDigits="0" />
                </IgbDataGrid>
            </div>
        }

    </div>
</div>

@code {

    private List<Employee> Data;
    private IgbDataGrid grid;
    private GroupHeaderDisplayMode GroupHeaderClickAction { get; set; } = GroupHeaderDisplayMode.Combined;

    public IgbDataGrid DataGridRef
    {
        get
        {
            return grid;
        }
        set
        {
            grid = value;
            OnGridCreated();

            StateHasChanged();
        }
    }

    protected override void OnInitialized()
    {

        this.Data = EmployeeData.Create(200, false);
    }

    private void OnGridCreated()
    {
        var country = new IgbColumnGroupDescription() { Field = "Country", DisplayName = "Location" };
        var city = new IgbColumnGroupDescription() { Field = "City", DisplayName = "City" };
        var income = new IgbColumnGroupDescription() { Field = "Income", DisplayName = "Income" };

        grid.GroupDescriptions.Add(country);
        grid.GroupDescriptions.Add(city);
        grid.GroupDescriptions.Add(income);
    }

}razorCOPY CODE

/* 
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/cssCOPY CODE

Hierarchical Groups

The GroupHeaderDisplayMode property allows the groups to be hierarchical. By default, each group description that is added gets aggregated together. Setting the GroupHeaderDisplayMode to Split will create a section header for ever group defined in GroupDescriptions property of the IgbDataGrid.

<IgbDataGrid Height="100%" Width="100%"
    @ref="DataGridRef"
    DataSource="DataSource"
    GroupHeaderDisplayMode="GroupHeaderDisplayMode.Split" />
razor

Collapsable Groups

Also, the IgbDataGrid can display a toggle on each group section to allow the end user to expand or collapse the grouped data via the IsGroupCollapsable property.

<IgbDataGrid @ref="DataGridRef" Height="100%" Width="100%"
    DataSource="DataSource"
    IsGroupCollapsable="true" />
razor

Summary

For your convenience, all above code snippets are combined into one code block below that you can easily copy to your project.

<IgbDataGrid @ref="DataGridRef" Height="100%" Width="100%"
    DataSource="DataSource"
    GroupHeaderDisplayMode="GroupHeaderDisplayMode.Split"
    IsGroupCollapsable="true" />

@code {
    private IgbDataGrid grid;
    public IgbDataGrid DataGridRef
    {
        get
        {
            return grid;
        }
        set
        {
            grid = value;
            OnGridCreated();
            StateHasChanged();
        }
    }

    private void OnGridCreated()
    {
        var state = new ColumnGroupDescription { Field = "Country", DisplayName = "Location" };
        var city = new ColumnGroupDescription { Field = "City", DisplayName = "City" };
        var income = new ColumnGroupDescription { Field = "Income", DisplayName = "Income" };

        this.DataGridRef.GroupDescriptions.Add(state);
        this.DataGridRef.GroupDescriptions.Add(city);
        this.DataGridRef.GroupDescriptions.Add(income);
    }
}
razor

API References

• IgbDataGrid
• GroupDescriptions
• GroupHeaderDisplayMode
• IsGroupByAreaVisible
• IsGroupCollapsable