How to create the custom column in winforms datagrid

RatingColumn/Employee.cs

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+#region Copyright Syncfusion Inc. 2001-2018.
+// Copyright Syncfusion Inc. 2001-2018. All rights reserved.
+// Use of this code is subject to the terms of our license.
+// A copy of the current license can be obtained at any time by e-mailing
+// licensing@syncfusion.com. Any infringement will be prosecuted under
+// applicable laws. 
+#endregion
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+
+namespace GettingStarted
+{
+    public class Employee : INotifyPropertyChanged
+    {
+        #region Private members
+
+        private bool _selected;
+        private string _name;
+        private string _designation;
+        private string _mail;
+        private string _trust;
+        private string _status;
+        private int _proficiency;
+        private int _rating;
+        private int _salary;
+        private string _address;
+        private string _gender;
+
+
+        #endregion
+
+        public Employee(bool selected, string name, string designation, string mail, string location, string trust, int rating, string status, int proficiency, int salary, string address, string gender)
+        {
+            Selected = selected;
+            EmployeeName = name;
+            Designation = designation;
+            Mail = mail;
+            Location = location;
+            Trustworthiness = trust;
+            Rating = rating;
+            Status = status;
+            SoftwareProficiency = proficiency;
+            Salary = salary;
+            Address = address;
+            Gender = gender;
+        }
+
+        public bool Selected
+        {
+            get
+            {
+                return _selected;
+            }
+            set
+            {
+                _selected = value;
+                RaisePropertyChanged("Selected");
+            }
+        }
+        /// <summary>
+        /// Gets or sets the employee name.
+        /// </summary>        
+        [Display(Name = "Employee Name ")]
+        public string EmployeeName
+        {
+            get
+            {
+                return _name;
+            }
+            set
+            {
+                _name = value;
+                RaisePropertyChanged("EmployeeName");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the designation.
+        /// </summary>        
+        [Display(Name = "Designation ")]
+        public string Designation
+        {
+            get
+            {
+                return _designation;
+            }
+            set
+            {
+                _designation = value;
+                RaisePropertyChanged("Designation");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the mail ID.
+        /// </summary>        
+        [Display(Name = "Mail")]
+        public string Mail
+        {
+            get
+            {
+                return _mail;
+            }
+            set
+            {
+                _mail = value;
+                RaisePropertyChanged("Mail");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the location.
+        /// </summary>        
+        [Display(Name = "Location")]
+        public string Location { get; set; }
+
+        /// <summary>
+        /// Gets or sets the Trustworthiness.
+        /// </summary>        
+        [Display(Name = "Trustworthiness")]
+        public string Trustworthiness
+        {
+            get
+            {
+                return _trust;
+            }
+            set
+            {
+                _trust = value;
+                RaisePropertyChanged("Trustworthiness");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the rating.
+        /// </summary>        
+        [Display(Name = "Rating")]
+        public int Rating
+        {
+            get
+            {
+                return _rating;
+            }
+            set
+            {
+                _rating = value;
+                RaisePropertyChanged("Rating");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the status.
+        /// </summary>        
+        [Display(Name = "Status")]
+        public string Status
+        {
+            get
+            {
+                return _status;
+            }
+            set
+            {
+                _status = value;
+                RaisePropertyChanged("Status");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the software proficiency .
+        /// </summary>        
+        [Display(Name = "Software Proficiency")]
+        public int SoftwareProficiency
+        {
+            get
+            {
+                return _proficiency;
+            }
+            set
+            {
+                _proficiency = value;
+                RaisePropertyChanged("SoftwareProficiency");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the salary.
+        /// </summary>        
+        [Display(Name = "Salary")]
+        public int Salary
+        {
+            get
+            {
+                return _salary;
+            }
+            set
+            {
+                _salary = value;
+                RaisePropertyChanged("Salary");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the address.
+        /// </summary>        
+        [Display(Name = "Address")]
+        public string Address
+        {
+            get
+            {
+                return _address;
+            }
+            set
+            {
+                _address = value;
+                RaisePropertyChanged("Address");
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the Gender.
+        /// </summary>        
+        [Display(Name = "Gender")]
+        public string Gender
+        {
+            get
+            {
+                return _gender;
+            }
+            set
+            {
+                _gender = value;
+                RaisePropertyChanged("Gender");
+            }
+        }
+
+
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        public void RaisePropertyChanged(string propertyName)
+        {
+            if (this.PropertyChanged != null)
+                this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}

RatingColumn/EmployeeCollection.cs

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+#region Copyright Syncfusion Inc. 2001-2018.
+// Copyright Syncfusion Inc. 2001-2018. All rights reserved.
+// Use of this code is subject to the terms of our license.
+// A copy of the current license can be obtained at any time by e-mailing
+// licensing@syncfusion.com. Any infringement will be prosecuted under
+// applicable laws. 
+#endregion
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+
+namespace GettingStarted
+{
+    public class EmployeeCollection
+    {
+        public EmployeeCollection()
+        {
+            EmployeeDetails = new EmployeeRepository().GetEmployeeDetails(100);
+        }
+
+        private ObservableCollection<Employee> _EmployeeDetails;
+
+        /// <summary>
+        /// Gets or sets the orders details.
+        /// </summary>
+        /// <value>The orders details.</value>
+        public ObservableCollection<Employee> EmployeeDetails
+        {
+            get { return _EmployeeDetails; }
+            set { _EmployeeDetails = value; }
+        }
+    }
+
+    public class EmployeeRepository
+    {
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EmployeeRepository"/> class.
+        /// </summary>
+        public EmployeeRepository()
+        {
+        }
+
+        /// <summary>
+        /// Gets the Employee details.
+        /// </summary>
+        /// <param name="count">The count.</param>
+        /// <returns></returns>
+        public ObservableCollection<Employee> GetEmployeeDetails(int count)
+        {
+            string[] employees = { "Michael", "Kathryn", "Tamer", "Martin", "Davolio", "Nancy", "Fuller", "Leverling", "Therasa",
+        "Margaret", "Buchanan", "Janet", "Andrew", "Callahan", "Laura", "Dodsworth", "Anne",
+        "Bergs", "Vinet", "Anto", "Fleet", "Zachery", "Van", "Edward", "Jack", "Rose"};
+            string[] genders = { "1", "2", "1", "1", "2", "2", "1", "2", "2", "2", "1", "2", "1", "1", "2", "1", "2", "1", "1", "1", "1", "1", "1", "1", "1", "2" };
+
+            string[] designation = { "Manager", "CFO", "Designer", "Developer", "Program Directory", "System Analyst", "Project Lead" };
+
+            string[] mail = { "gmail.com", "yahoo.com", "hotmail.com" };
+            string[] trust = { "Sufficient", "Perfect", "Insufficient" };
+            string[] status = { "Active", "Inactive" };
+            string[] location = { "UK", "USA", "Sweden", "France", "Canada", "Argentina", "Austria", "Germany", "Mexico" };
+
+            string[] address = { "59 rue de lAbbaye", "Luisenstr. 48"," Rua do Paço 67", "2 rue du Commerce", "Boulevard Tirou 255",
+        "Rua do mailPaço 67", "Hauptstr. 31", "Starenweg 5", "Rua do Mercado, 12",
+        "Carrera 22 con Ave."," Carlos Soublette #8-35", "Kirchgasse 6",
+        "Sierras de Granada 9993", "Mehrheimerstr. 369", "Rua da Panificadora 12", "2817 Milton Dr.", "Kirchgasse 6",
+        "Åkergatan 24", "24, place Kléber", "Torikatu 38", "Berliner Platz 43", "5ª Ave. Los Palos Grandes", "1029 - 12th Ave. S.",
+        "Torikatu 38", "P.O. Box 555", "2817 Milton Dr.", "Taucherstraße 10", "59 rue de lAbbaye", "Via Ludovico il Moro 22",
+        "Avda. Azteca 123", "Heerstr. 22", "Berguvsvägen  8", "Magazinweg 7", "Berguvsvägen  8", "Gran Vía, 1", "Gran Vía, 1",
+        "Carrera 52 con Ave. Bolívar #65-98 Llano Largo", "Magazinweg 7", "Taucherstraße 10", "Taucherstraße 10"};
+
+
+            Random random = new Random();
+            ObservableCollection<Employee> ordersDetails = new ObservableCollection<Employee>();
+
+            for (int i = 10000; i < count + 10000; i++)
+            {
+                var name = employees[random.Next(25)];
+                int index = Array.IndexOf(employees, name);
+                string gender = genders[index];
+                ordersDetails.Add(new Employee(i % 2 == -1, name, designation[random.Next(6)], name.ToLower() + "@" + mail[random.Next(3)], location[random.Next(8)], trust[random.Next(3)],random.Next(1,5), status[random.Next(2)], random.Next(1, 100), random.Next(100000, 400000), address[random.Next(1, 25)], gender));
+            }
+
+            return ordersDetails;
+        }
+    }
+}