MultiImageAddinHostControl_panel.cs

public class MultiImageAddinHostControl : WinFormsControlAddInBase
{
private Panel _panel;   // ADDED PANEL
private ElementHost _host;
private MultiImageView _view;
private PageableImageControlViewModel _vm;
private IImageRepository _imageRepository;

/// <summary>
/// Creates the Windows Forms control for the control add-in.
/// </summary>
/// <returns>Returns the Windows Forms control.</returns>
protected override Control CreateControl()
{
    _panel = new Panel
    {
        // ADDED BORDER
        BorderStyle = BorderStyle.FixedSingle
    };

    _host = new ElementHost
    {
        Dock = DockStyle.Fill
    };

    // PANEL HOSTS THE ELEMENTHOST
    _panel.Controls.Add(_host);

    _vm = new PageableImageControlViewModel
    {
        PageSize = 3
    };

    _view = new MultiImageView
    {
        DataContext = _vm
    };
    _view.InitializeComponent();

    _host.Child = _view;
    
    // SET THE ELEMENTHOST SIZE TO MINWIDTH/MINHEIGHT
    _host.Size = new Size((int) _view.MinWidth, (int) _view.MinHeight);
    // SET THE PANEL SIZE TO SLIGHTLY LARGER TO GIVE A BIT OF PADDING
    _panel.Size = new Size((int) _view.MinWidth + 5, (int) _view.MinHeight + 5);

    return _panel;
}