How to add buttons to a grid WP8.1 MVVM Light? - mvvm

Question

I'm having trouble building a dashboard in WP8.1.
I'm using the MVVM Light toolkit.
I'm looking after this outcome:
screenshot of dashboard
I can currently build a dashboard but only with one object per row.
I've searched a lot but haven't found anything to get the desired effect.
Here's the code of the dashboard done programatically:
int i = 0;
Grid grid = new Grid();
grid.RowDefinitions.Add(new RowDefinition());
for (int ct = 0; ct < 3; ct++)
grid.ColumnDefinitions.Add(new ColumnDefinition());
StackPanel stackPanel = new StackPanel();
stackPanel.Name = "stackPanel";
stackPanel.Background = new SolidColorBrush(new Windows.UI.Color());
foreach (var flow in dashboard.DashboardFlows)
{
if (flow.Flow.IsInstalled)
{
//if next object should change line
if (i == 3)
{
stackPanel.Children.Add(grid);
grid = new Grid();
grid.RowDefinitions.Add(new RowDefinition());
for (int ct = 0; ct < 3; ct++)
grid.ColumnDefinitions.Add(new ColumnDefinition());
i = 0;
}
Button button = new Button();
if (flow.Flow.Type.Equals("COMPNEWS"))
{
button.Click += delegate { Frame.Navigate(typeof(NewsPage), flow); };
}
//button stackpanel
StackPanel stack = new StackPanel();
//Button image
Image buttonImage = new Image();
if (!String.IsNullOrEmpty(flow.Flow.IconUrl) || !String.IsNullOrWhiteSpace(flow.Flow.IconUrl))
buttonImage.Source = new BitmapImage(new Uri(flow.Flow.IconUrl));
buttonImage.Height = 45;
buttonImage.VerticalAlignment = VerticalAlignment.Top;
stack.Children.Add(buttonImage);
//Button name
TextBlock buttonName = new TextBlock();
buttonName.Text = flow.Flow.Name;
buttonName.FontSize = 12;
buttonName.TextWrapping = TextWrapping.Wrap;
stack.Children.Add(buttonName);
button.Content = stack;
button.Margin = new Thickness(5, 0, 5, 0);
button.SetValue(Grid.ColumnProperty, i);
button.SetValue(Grid.RowProperty, 0);
button.HorizontalAlignment = HorizontalAlignment.Stretch;
button.VerticalAlignment = VerticalAlignment.Stretch;
button.Background = new SolidColorBrush(Color.FromArgb(130, 30, 30, 30));
grid.Children.Add(button);
i++;
}
}
scroll.Content = stackPanel;
Thank you in advance.