rmo*_*ore 10
这是使用UniformGrid的一个例子,正如Matt Hamilton建议的那样.
首先,让我们创建我们将要使用的类和数据.每张卡都将由Card对象表示,并具有Face属性:
public class Card
{
public string Face { get; set; }
public Card() { }
}
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接下来,我们需要一个包含我们的卡片集合的类,以及一个允许我们设置卡片数量的属性.对于CardCollection,我们可以使用ObservableCollection,因为当添加或删除卡时,它会自动通知UI.该NumberOfCards属性将需要它自己的方式来通知用户界面,为此,我们可以实现的INotifyPropertyChanged的接口.我们还需要一个表示要使用的行数/列数的属性,这只是NumberOfCards的平方根:
public class Cards : INotifyPropertyChanged
{
private int myNumberOfCards;
public int NumberOfCards
{
get { return this.myNumberOfCards; }
set
{
this.myNumberOfCards = value;
NotifyPropertyChanged("NumberOfCards");
// Logic is going in here since this is just an example,
// Though I would not recomend hevily modifying the setters in a finalized app.
while (this.myNumberOfCards > CardCollection.Count)
{
CardCollection.Add(new Card { Face = (CardCollection.Count + 1).ToString() });
}
while (this.myNumberOfCards < CardCollection.Count)
{
CardCollection.RemoveAt(CardCollection.Count - 1);
}
NotifyPropertyChanged("CardColumns");
}
}
public int CardColumns
{
get
{
return (int)Math.Ceiling((Math.Sqrt((double)CardCollection.Count)));
}
}
private ObservableCollection<Card> myCardCollection;
public ObservableCollection<Card> CardCollection
{
get
{
if (this.myCardCollection == null)
{ this.myCardCollection = new ObservableCollection<Card>(); }
return this.myCardCollection;
}
}
public Cards(int initalCards)
{
NumberOfCards = initalCards;
}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(String info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}
#endregion
}
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最后,我们可以将它设置为Window中的DataContext,并绑定到XAML中的Cards类.对于XAML我用一个简单的ItemsControl的,所以它是不可选的,我设置的DataTemplate是一个按钮,这样每张卡可以点击,这是所有需要!
public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();
this.DataContext = new Cards(25);
}
}
<Window x:Class="Sample_BoolAnimation.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1"
Height="300"
Width="300">
<Grid>
<DockPanel>
<DockPanel DockPanel.Dock="Top">
<TextBlock Text="Number of Cards:" />
<TextBox Text="{Binding NumberOfCards, UpdateSourceTrigger=PropertyChanged}" />
</DockPanel>
<ItemsControl ItemsSource="{Binding CardCollection}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="{Binding CardColumns}" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Content="{Binding Face}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</DockPanel>
</Grid>
</Window>
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我要推荐的另一件事是Josh Smith的ContentControl3D实现.因为这可以为你提供你想要在Card类中实现的"翻转"行为.
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