/// <summary>
/// 之前没有任何预览控件,创建新的预览的控件
/// </summary>
private async Task CreateNewPrevisualControl(StorageEntry entry)
{
this.InitialPrevisualModel(entry);
await PrevisualEntry.PreparePreviewAsync();
this.UpdatePrevisual(false);
}
/// <summary>
/// 创建一个新的预览控件取代已有的预览控件
/// </summary>
private async Task UpdateNewPrevisualControl(StorageEntry entry)
{
// 文件类型与上一个不同
PrevisualEntry = null;
this.PrevisualPopup.IsOpen = false;
this.PrevisualContainer.Children.Remove(PrevisualControl);
this.InitialPrevisualModel(entry);
await PrevisualEntry.PreparePreviewAsync();
this.UpdatePrevisual(false);
}
