How to: Implement Drag-and-Drop Between GridControls

  • 7 min to read

This example demonstrates how to implement drag-and-drop between GridControls. See the following topic to learn more: Drag-and-Drop Between GridControls.

The image below shows the result:

DragDropBetweenGrids

using System.Windows;
using System.Collections.ObjectModel;
using DevExpress.Xpf.Core;

namespace How_to_Drag_and_Drop_Between_GridControls {
    public partial class MainWindow : Window {
        public class Employee {
            public int ID { get; set; }
            public int ParentID { get; set; }
            public string Name { get; set; }
            public string Position { get; set; }
            public string Department { get; set; }
            public override string ToString() {
                return Name;
            }
        }

        public static class Stuff {
            public static ObservableCollection<Employee> GetStuff1() {
                ObservableCollection<Employee> stuff = new ObservableCollection<Employee>();
                stuff.Add(new Employee() { ID = 1, ParentID = 0, Name = "Gregory S. Price", Department = "", Position = "President" });
                stuff.Add(new Employee() { ID = 2, ParentID = 1, Name = "Irma R. Marshall", Department = "Marketing", Position = "Vice President" });
                stuff.Add(new Employee() { ID = 3, ParentID = 1, Name = "John C. Powell", Department = "Operations", Position = "Vice President" });
                stuff.Add(new Employee() { ID = 4, ParentID = 1, Name = "Christian P. Laclair", Department = "Production", Position = "Vice President" });
                stuff.Add(new Employee() { ID = 5, ParentID = 1, Name = "Karen J. Kelly", Department = "Finance", Position = "Vice President" });

                stuff.Add(new Employee() { ID = 6, ParentID = 2, Name = "Brian C. Cowling", Department = "Marketing", Position = "Manager" });
                stuff.Add(new Employee() { ID = 7, ParentID = 2, Name = "Thomas C. Dawson", Department = "Marketing", Position = "Manager" });
                stuff.Add(new Employee() { ID = 8, ParentID = 2, Name = "Angel M. Wilson", Department = "Marketing", Position = "Manager" });
                stuff.Add(new Employee() { ID = 9, ParentID = 2, Name = "Bryan R. Henderson", Department = "Marketing", Position = "Manager" });

                stuff.Add(new Employee() { ID = 10, ParentID = 3, Name = "Harold S. Brandes", Department = "Operations", Position = "Manager" });
                stuff.Add(new Employee() { ID = 11, ParentID = 3, Name = "Michael S. Blevins", Department = "Operations", Position = "Manager" });
                stuff.Add(new Employee() { ID = 12, ParentID = 3, Name = "Jan K. Sisk", Department = "Operations", Position = "Manager" });
                stuff.Add(new Employee() { ID = 13, ParentID = 3, Name = "Sidney L. Holder", Department = "Operations", Position = "Manager" });
                return stuff;
            }

            public static ObservableCollection<Employee> GetStuff2() {
                ObservableCollection<Employee> stuff = new ObservableCollection<Employee>();
                stuff.Add(new Employee() { ID = 14, ParentID = 4, Name = "James L. Kelsey", Department = "Production", Position = "Manager" });
                stuff.Add(new Employee() { ID = 15, ParentID = 4, Name = "Howard M. Carpenter", Department = "Production", Position = "Manager" });
                stuff.Add(new Employee() { ID = 16, ParentID = 4, Name = "Jennifer T. Tapia", Department = "Production", Position = "Manager" });

                stuff.Add(new Employee() { ID = 17, ParentID = 5, Name = "Judith P. Underhill", Department = "Finance", Position = "Manager" });
                stuff.Add(new Employee() { ID = 18, ParentID = 5, Name = "Russell E. Belton", Department = "Finance", Position = "Manager" });
                return stuff;
            }
        }

        public MainWindow() {
            InitializeComponent();
            gridControl1.ItemsSource = Stuff.GetStuff1();
            gridControl2.ItemsSource = Stuff.GetStuff2();
        }

        void OnDragRecordOver(object sender, DragRecordOverEventArgs e) {
            if(e.IsFromOutside && typeof(Employee).IsAssignableFrom(e.GetRecordType())) {
                e.Effects = DragDropEffects.Move;
                e.Handled = true;
            }
        }
    }
}