It would be nice if the user is allowed to edit the tiles.

To reproduce:

public Form1()
{
    InitializeComponent();

    this.radPanorama1.RowsCount = 5;
    this.radPanorama1.ColumnsCount = 1;
    this.radSpinEditor1.DataBindings.Add("Value", this.radPanorama1, "RowsCount", true, DataSourceUpdateMode.OnPropertyChanged);

    for (int i = 0; i < 5; i++)
	{
        RadTileElement tile = new RadTileElement();
        tile.Text = "Tile" + (i );
        tile.Row = i ;
        this.radPanorama1.Items.Add(tile);
	}        
}


Please refer to the sample video: http://screencast.com/t/lncUvh0vIRKN 

Workaround:

 private void radPanorama1_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName=="RowsCount")
            {
                this.radPanorama1.PanoramaElement.InvalidateMeasure(true);
            }
        }

To reproduce:

1.Open Demo Hub example and maximize the form.
2.Start dragging "Maginifier" tile.
3. Try to drop it to the last group. You will notice that horizontal scrollbar does not move when the form is maximized. However, it behaves as expected if the form is not maximized.

Workaround:
public Form1()
{
    InitializeComponent();

    this.radPanorama1.PanoramaElement.DragDropService = new CustomService(this.radPanorama1.PanoramaElement);
}

public class CustomService : TileDragDropService
{
    public RadPanoramaElement OwnerElement { get; set; }

    public CustomService(RadPanoramaElement owner) : base(owner)
    {
        OwnerElement = owner;
    }

    public int ScrollStep
    { 
        get
        {
            return (int)typeof(TileDragDropService).GetField("scrollStep",
                System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance).GetValue(this);
        }
        set
        {
            typeof(TileDragDropService).GetField("scrollStep",
                System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance).SetValue(this, value);
        }
    }

    protected override void HandleMouseMove(Point mousePos)
    {
        Point clientPoint = OwnerElement.PointFromScreen(mousePos);
        Timer scrollTimer = typeof(TileDragDropService).GetField("scrollTimer",
            System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance).GetValue(this) as Timer;
        if (clientPoint.X > this.OwnerElement.Size.Width - 5)
        {
            ScrollStep = (clientPoint.X - this.OwnerElement.Size.Width) + 5;
            if (!scrollTimer.Enabled)
            {
                scrollTimer.Start();
            }
        }
        else if (clientPoint.X < 5)
        {
            ScrollStep = clientPoint.X - 5;
            if (!scrollTimer.Enabled)
            {
                scrollTimer.Start();
            }
        }
        else
        {
            base.HandleMouseMove(mousePos);
        }
    }
}

To reproduce:

1. Add a RadPanorama with several tiles at design time.
2. Open the RadItem Collection Editor and try to reorder the items by using the arrows. Press OK. As a result, the tiles in the form are not ordered as expected although the order in the Collection Editor is the desired one.

Workaround: add the tiles at run-time in the correct order.

Workaround: use the attached theme
https://docs.telerik.com/devtools/winforms/themes/using-custom-themes

Hello

I have a problem with onClick event on RadTileElement. After upgrade WinForms to version 2020.3.915.40 i stopped working. Please let me know how is going on.

Regards

Slawek

To reproduce:

Add 2 TileGroupElements to a RadPanorama. Set the rowcount of the first to 2 and to the second one to 1. Add a tile to the first group and set its rowspan to 2. Start the application drag the tile, you will see exception.

Workaround:
Create a custom TileDragDropService:

public class MyTileDragDropService : TileDragDropService
{
    private Action<TileGroupElement, RadTileElement, int> OffsetTiles;
    private RadPanoramaElement Owner;

    public MyTileDragDropService(RadPanoramaElement owner)
        : base(owner)
    {
        this.Owner = (RadPanoramaElement)typeof(TileDragDropService).GetField("owner", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(this);
        MethodInfo matchedMethod = null;

        foreach (MethodInfo method in typeof(TileDragDropService).GetMethods(BindingFlags.Instance | BindingFlags.NonPublic))
        {
            if (method.Name == "OffsetTiles" && method.GetParameters().Length == 3)
            {
                matchedMethod = method;
                break;
            }
        }

        this.OffsetTiles = (Action<TileGroupElement, RadTileElement, int>)matchedMethod.CreateDelegate(typeof(Action<TileGroupElement, RadTileElement, int>), this);
    }

    protected override void HandleGroupedDragDrop(RadDropEventArgs e)
    {
        RadTileElement target = e.HitTarget as RadTileElement;
        RadTileElement source = this.Context as RadTileElement;
        Point dropLocation = e.DropLocation;

        if (target != null)
        {
            dropLocation = target.PointToControl(dropLocation);
        }

        TileGroupElement @group = GetTargetGroup(new RectangleF(dropLocation, source.Size));
        if (source == null || @group == null)
        {
            return;
        }

        Point targetCell = GetTargetCell(@group, dropLocation);
        if (targetCell.X == -1)
        {
            return;
        }

        targetCell.X = Math.Abs(Math.Min(targetCell.X, @group.RowsCount - source.RowSpan));
        if (targetCell.X >= @group.RowsCount)
        {
            targetCell.X = @group.RowsCount - 1;
        }

        source.Row = targetCell.X;
        source.Column = targetCell.Y;

        if (!@group.Items.Contains(source))
        {
            (source.Parent.Parent as TileGroupElement).Items.Remove(source);
            @group.Items.Add(source);
        }

        int oldColSpan = source.ColSpan;
        source.ColSpan = 0;

        this.OffsetTiles(@group, source, oldColSpan);

        source.ColSpan = oldColSpan;
        source.Column -= oldColSpan;

        this.Owner.InvalidateMeasure(true);
        this.Owner.UpdateLayout();

        return;
    }
}

And set it to the panorama:
panorama.PanoramaElement.DragDropService = new MyTileDragDropService();

Adding a tile with ColSpan property set to greater than 1 raises exception

If you add 10 tiles in 2 columns of 5 tiles and run the project, you will see that the tiles are not correctly positioned. This happens only if AutoArrangeNewTiles is true.