radGridView1_CustomSorting event not firing

2 posts, 1 answers
  1. Dave
    Dave avatar
    5 posts
    Member since:
    Apr 2011

    Posted 11 Oct 2011 Link to this post

    Hey everyone,

    Title Correction: radGridView1_CustomGrouping event not firing

    I am trying to implement the following example I have found in the Telerik forums to get custom month sorting to work. (Link) I tried setting the CustomDataOperation on the column as the example indicates. When I did that, the Intellisense description stated that the CustomDataOperation property was deprcated and to use EnableCustomGrouping, EnableCustomSorting, etc on the GridView instead. 

    I have set all of these properties to true, yet the radGridView1_CustomSorting event does not fire. 

    Why? What else is needed? 

  2. Answer
    Emanuel Varga
    Emanuel Varga avatar
    1336 posts
    Member since:
    May 2010

    Posted 12 Oct 2011 Link to this post

    Hello Dave,

    Please take a look at the following example:

    using System;
    using System.Collections.Generic;
    using System.Windows.Forms;
    using Telerik.WinControls.UI;
    public partial class CustomEventsFiringForm : Form
        private RadGridView _radGridView;
        private RadTextBox _textBox;
        public CustomEventsFiringForm()
            _radGridView = new RadGridView();
            _radGridView.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
            _radGridView.Dock = DockStyle.Fill;
            //_radGridView.ShowFilteringRow = true;
            _radGridView.EnableFiltering = true;
            _textBox = new RadTextBox();
            _textBox.ReadOnly = true;
            _textBox.Dock = DockStyle.Bottom;
            _textBox.Multiline = true;
            _textBox.ScrollBars = ScrollBars.Vertical;
            _textBox.Height = 100;
            _radGridView.CustomSorting += new GridViewCustomSortingEventHandler(_radGridView_CustomSorting);
            _radGridView.EnableCustomSorting = true;
            _radGridView.CustomGrouping += new GridViewCustomGroupingEventHandler(_radGridView_CustomGrouping);
            _radGridView.EnableCustomGrouping = true;
            _radGridView.CustomFiltering += new GridViewCustomFilteringEventHandler(_radGridView_CustomFiltering);
            _radGridView.EnableCustomFiltering = true;
            _radGridView.DataSource = Person.GetPersonList(10);
        private void _radGridView_CustomFiltering(object sender, GridViewCustomFilteringEventArgs e)
            Write("CustomFiltering called!");
        private void _radGridView_CustomGrouping(object sender, GridViewCustomGroupingEventArgs e)
            Write("CustomGrouping called!");
        private void _radGridView_CustomSorting(object sender, GridViewCustomSortingEventArgs e)
            Write("CustomSorting called!");
        private void Write(string text)
            _textBox.Text = DateTime.Now.ToShortTimeString() + text + Environment.NewLine + _textBox.Text;
    public class Person
        public int Id { get; set; }
        public string Name { get; set; }
        public Person()
        public Person(int id, string name)
            Id = id;
            Name = name;
        public static IEnumerable<Person> GetPersonList(int noItems)
            for (int i = 0; i < 100; i++)
                yield return new Person
                    Id = i,
                    Name = "Person " + i.ToString()

    Hope this helps, if you have any other questions or comments, please let me know,

    Best Regards,
    Emanuel Varga

    Telerik WinForms MVP
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