Try to navigate by pressing the first letter in list items. You will be able do it only for items that are currently visible.

When AutoSizeItems and TextWrap are enabled, the text of the items that are larger than the visible area of the control is truncated and items size is limited to the size of the visible area.

To reproduce:
- Add data items which have category, and set the SelectionMode to MultiExtended
- Then use the following code and select items from different category:
private void RadListControl1_SelectedItemsChanged(object sender, NotifyCollectionChangedEventArgs e)
{
    if (e.NewItems == null)
    {
        return;
    }

    var newCategory = (((RadListDataItem) e.NewItems[0]).DataBoundItem as MyData).Category;
    var prevCategory = (radListControl1.SelectedItem.DataBoundItem as MyData).Category;
    if (newCategory != prevCategory && radListControl1.SelectedItems.Count > 1)
    {
        radListControl1.SuspendSelectionEvents = true;
        //exception
        var items = radListControl1.SelectedItems.ToList();
        for (int i = 0; i < items.Count - 1; i++)
        {
            items[i].Selected = false;
        }
        //after this the selection is broken and the user cannot select an item
        //radListControl1.SelectedItem = null;

        radListControl1.SuspendSelectionEvents = false;
    }
}

RadListControl's layout remains suspended after adding items with custom visual style

RadListControl SelectionMode.MultiExtended does not work with Ctrl+Space

FIX. RadListControl - adding items and changing their text in design time is not affected in design time.

When I click on the scrollbar of a radlistcontrol to go down. The doubleclick event is fired but I don't think it should be fired.

To reproduce:
 protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            AddListControl();
            radListControl1.AutoSizeItems = true;
            radListControl1.Font = new Font("Arial", 22);
        }

Workaround: After the font is set, set the AutoSizeItems to false and then back to true

To reproduce:

1. Create a new WinForms project
2. Drag a RadListControl on the form
3.Start the application/project
3. Focus the Control and press Pos 1 / Home or End. >> The Application crashes due to a Telerik Control internal NullReference Exception

Workaround: 

public class CustomListControl : RadListControl
{
    public override string ThemeClassName
    {
        get
        {
            return typeof(RadListControl).FullName;  
        }
    }

    protected override void OnKeyDown(KeyEventArgs e)
    {
        if ((e.KeyCode == Keys.Home || e.KeyCode == Keys.End) && this.Items.Count == 0)
        {
            return;
        }
        base.OnKeyDown(e);
    }
}

How to reproduce: 
var descriptionItem = new DescriptionTextListDataItem()
{
    Text = "Chicken wings",
    DescriptionFont = new Font("Arial", 20, FontStyle.Bold),
    DescriptionText = "some description",

};

this.radListControl1.Items.Add(descriptionItem);

Workaround: handle the VisualItemFormatting event and set the font to the DescriptionContent element
https://docs.telerik.com/devtools/winforms/dropdown-listcontrol-and-checkeddropdownlist/listcontrol/customizing-appearance/formatting-items

Workaround:  this.radListControl1.ItemHeight = 40;

Workaround:
this.radListControl1.VisualItemFormatting += RadListControl1_VisualItemFormatting;

 private void RadListControl1_VisualItemFormatting(object sender, Telerik.WinControls.UI.VisualItemFormattingEventArgs args)
 {
     DescriptionTextListVisualItem item = args.VisualItem as DescriptionTextListVisualItem;
     if (item == null)
     {
         return;
     }

     item.MainContent.EnableBorderHighlight = false;
     item.MainContent.EnableHighlight = false;
     item.DescriptionContent.EnableBorderHighlight = false;
     item.DescriptionContent.EnableHighlight = false;

     foreach (var c in item.Children)
     {
         this.SetNMouseProperties(c);
     }           
 }

 private void SetNMouseProperties(RadElement element)
 {
     element.ShouldHandleMouseInput = false;
     foreach (var item in element.Children)
     {
         this.SetNMouseProperties(item);
     }
 }

To reproduce: run the atatched project, you will notice that the last item is not visible.

Workaround: add the items in the form's constructor.

How to reproduce: check the attached file

Workaround: create a custom drag-drop service 
public class CustomListControlDragDropService : ListControlDragDropService
{
    private RadListDataItem draggedItem;

    public CustomListControlDragDropService(RadListElement owner) 
        : base(owner)
    {
    }

    protected override void PerformStart()
    {
        base.PerformStart();

        RadListVisualItem draggedVisualItem = this.Context as RadListVisualItem;
        if (draggedVisualItem != null)
        {
            this.draggedItem = draggedVisualItem.Data;
        }
    }

    protected override void PerformStop()
    {
        base.PerformStop();

        this.DisposeHint();
        this.draggedItem = null;
    }

    protected override void OnPreviewDragDropCore(RadListElement targetList, RadListVisualItem targetElement)
    {
        int index = targetList.Items.Count - 1;
        if (targetElement != null)
        {
            index = targetList.Items.IndexOf(targetElement.Data);
        }
        
        if (this.draggedItem.Owner != targetList)
        {
            index++;
        }
        RadListElement dragedListView = this.draggedItem.Owner;

        IList<RadListDataItem> itemsToMove = new List<RadListDataItem>(dragedListView.SelectedItems.Count);

        foreach (RadListDataItem item in dragedListView.SelectedItems)
        {
            itemsToMove.Add(item);
        }

        dragedListView.BeginUpdate();
        foreach (RadListDataItem item in itemsToMove)
        {
            item.Selected =
                item.Active = false;
            dragedListView.Items.Remove(item);
        }

        dragedListView.EndUpdate();
        targetList.BeginUpdate();
        foreach (RadListDataItem item in itemsToMove)
        {
            if (index > targetList.Items.Count)
            {
                targetList.Items.Add(item);
            }
            else
            {
                targetList.Items.Insert(index, item);
            }

            item.Selected = item.Active = true;

            index++;
        }

        targetList.EndUpdate();
    }
}

To reproduce:
- Add some items.
- Select an item and then  select it again 
- The SelectedItemsChanged is fired 3 times and it should fire only when the item is selected for the first time. 

Workaround:
Use SelectedIndexChanged instead.

If the end-users tries to navigate through the items of a RadListControl or RadDropDownList by using the arrow keys, he/she should skip the disabled items.

DECLINED: The Rebind method works as expected. This case was logged because ScrollToItem is not working after Rebind and this is due to the fact that our layout system is not synchronous. In order to be able to ScrollToItem, you need to call UpdateLayout first:
            RadListControl1.SelectedItem = itemToSelect
            Me.RadListControl1.ListElement.UpdateLayout()
            RadListControl1.ScrollToItem(itemToSelect)

The VisualItem argument of CreatingVisualListItem event is always null.

RadListControl issue with SelectedItems, SelectedIndex synchronization in bound mode when external object is added to DataSource object

Resolution: When the List contains items and user remove the last string from the underlying data source with index = 2 and this item is selected then the List automatically move the selection to the previous item with index 1 because in this moment there is no item with index 2. 

To reproduce:
- add 10 items to the control named "Listitem 1" .... "Listitem 10"
- press "L" to navigate between the items => the first is selected, then the third, the fifth, so on, while they should be selected in the order they appear and once the end is reached it should start over.