我应该使用什么控件来显示不同的内容
本文关键字:显示 什么 控件 我应该 | 更新日期: 2023-09-27 18:01:48
我需要在我的Windows Phone应用程序中显示内容。它是文本,图像,音频,视频等。每个Item
都有作者姓名和图片,以及List<>
内容(不同计数)。我需要展示出来。我现在有一个解决方案-使用TemplateSelector
与Lisbox
或LLS
。但是内容的组合是>30和30个模板-它大约是2000代码行,我认为这是一个糟糕的解决方案。我试图使通用控制,其中包括所有的容器(控件)的内容,我填充它只有那些内容是在Item
(空容器只是最小化),但性能真的很糟糕(每个DataTemplate
有10-11个控件)。解决方案与一个控制是好的,但我需要一个良好的性能。有什么办法可以解决这个问题吗?
我在Windows Phone上显示不同的图钉时也遇到了同样的问题。我做了一个usercontrol并在code-behind中设置了一个特定的Template:
public partial class Map : UserControl
{
public Map()
{
InitializeComponent();
this.Loaded += Map_Loaded;
}
void Map_Loaded(object sender, RoutedEventArgs e)
{
(this.DataContext as MyViewModel).LoadingItemsCompleted += OnLoadingItemsCompleted;
}
private void OnLoadingItemsCompleted(object sender, EventArgs eventArgs)
{
// Don't care about thats
ObservableCollection<DependencyObject> children = Microsoft.Phone.Maps.Toolkit.MapExtensions.GetChildren(map);
MapItemsControl itemsControl = children.FirstOrDefault(x => x.GetType() == typeof(MapItemsControl)) as MapItemsControl;
// Here !
foreach (GeolocalizableModel item in (this.DataContext as MyViewModel).Items)
{
Pushpin pushpin = new Pushpin();
switch (item.PushpinTemplate)
{
case Server.PushpinTemplate.First:
pushpin.Template = this.Resources["firstPushpinTemplate"] as ControlTemplate;
break;
case Server.PushpinTemplate.Second:
pushpin.Template = this.Resources["secondPushpinTemplate"] as ControlTemplate;
break;
case Server.PushpinTemplate.Third:
pushpin.Template = this.Resources["thirdPushpinTemplate"] as ControlTemplate;
break;
default:
if (PushpinTemplate != null) pushpin.Template = PushpinTemplate;
break;
}
pushpin.Content = item.PushpinContent;
pushpin.GeoCoordinate = item.Location;
itemsControl.Items.Add(pushpin);
}
}
public ControlTemplate PushpinTemplate
{
get { return (ControlTemplate)GetValue(PushpinTemplateProperty); }
set { SetValue(PushpinTemplateProperty, value); }
}
// Using a DependencyProperty as the backing store for PushpinTemplate. This enables animation, styling, binding, etc...
public static readonly DependencyProperty PushpinTemplateProperty =
DependencyProperty.Register("PushpinTemplate", typeof(ControlTemplate), typeof(Map), new PropertyMetadata(null));
}
模板在UserControl中定义