/// <summary>
/// This method visualizes the placeholder state of the data item. When
/// showing a placehlder, we set the opacity of other elements to zero
/// so that stale data is not visible to the end user. Note that we use
/// Grid's background color as the placeholder background.
/// </summary>
/// <param name="item"></param>
public void ShowPlaceholder(Item item)
{
_item = item;
titleTextBlock.Opacity = 0;
categoryTextBlock.Opacity = 0;
image.Opacity = 0;
}
/// <summary>
/// This method shows the Title of the data item as well as a placholder
/// for the image. We set the opacity of other UIElements to zero
/// so that stale data is not visible to the end user. Note that we use
/// Border's background color as the image placeholder.
/// </summary>
/// <param name="item"></param>
public void ShowTitle(Item item)
{
_item = item;
subtitleTextBlock.Opacity = 0;
image.Opacity = 0;
titleTextBlock.Text = _item.Title;
titleTextBlock.Opacity = 1;
}