Snap to grid when dropping new item

[Gijs]

Hi,

I have a toolbox with custom shapes. I have a grid with snapping to grid enabled.
Once shapes are on the grid, they snap fine when I drag them.
But they don't snap the first time, when I drag shapes from the toolbox.

I would like to achieve this. Is there some setting I'm missing? Or would I have to implement a custom Snapping Service maybe?

Thanks for any input.

[Zarko]

Hi Gijs,
By default we don't snap the drop position but you can change this using the ItemsChanged event:

private void OnDiagramItemsChanged(object sender, DiagramItemsChangedEventArgs e)
{
    if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
    {
        var shapService = this.diagram.ServiceLocator.GetService<ISnappingService>();
        foreach (var item in e.NewItems)
        {
            var container = this.diagram.ContainerGenerator.ContainerFromItem(item) as IShape;
            if (container != null)
            {
                var newPosition = shapService.SnapPoint(container.Position);
                container.Position = newPosition;
            }
        }
    }
}

I hope I was able to help you and if you have more questions feel free to ask.

Regards,
Zarko
Telerik