我认为可以为此使用 ItemsControl 控件。
假设您创建了一个持有者控件,该控件持有控件的位置+您选择的更多信息。我称之为“ControlDefinition.cs”:
public class ControlDefinition : DependencyObject, INotifyPropertyChanged
{
public static readonly DependencyProperty TopProperty = DependencyProperty.Register("Top", typeof(Double), typeof(ControlDefinition), new PropertyMetadata(0d));
public static readonly DependencyProperty LeftProperty = DependencyProperty.Register("Left", typeof(Double), typeof(ControlDefinition), new PropertyMetadata(0d));
public static readonly DependencyProperty ModelProperty = DependencyProperty.Register("Model", typeof(Object), typeof(ControlDefinition), new PropertyMetadata(null));
public Double Top
{
get { return (Double)GetValue(TopProperty); }
set
{
SetValue(TopProperty, value);
NotifyPropertyChanged("Top");
}
}
public Double Left
{
get { return (Double)GetValue(LeftProperty); }
set
{
SetValue(LeftProperty, value);
NotifyPropertyChanged("Left");
}
}
public Object Model
{
get { return (Object)GetValue(ModelProperty); }
set
{
SetValue(ModelProperty, value);
NotifyPropertyChanged("Model");
}
}
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(String aPropertyName)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(aPropertyName));
}
}
然后,在我的模型(ViewModel.cs)中,我创建了这个类的 ObservableCollection:
public static readonly DependencyProperty ControlsProperty = DependencyProperty.Register("Controls", typeof(ObservableCollection<ControlDefinition>), typeof(MainWindow), new PropertyMetadata(null));
public new ObservableCollection<ControlDefinition> Controls
{
get { return (ObservableCollection<ControlDefinition>)GetValue(ControlsProperty); }
set
{
SetValue(ControlsProperty, value);
NotifyPropertyChanged("Controls");
}
}
然后,在同一个模型中,我初始化集合并添加 4 个虚拟控件:
this.Controls = new ObservableCollection<ControlDefinition>();
this.Controls.Add(new ControlDefinition() { Top = 10, Left = 10, Model = "One" });
this.Controls.Add(new ControlDefinition() { Top = 50, Left = 10, Model = "Two" });
this.Controls.Add(new ControlDefinition() { Top = 90, Left = 10, Model = "Three" });
我的 VIEW (View.xaml) 会是这样的:
<ItemsControl ItemsSource="{Binding Path=Controls}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<Canvas Background="Beige" IsItemsHost="True" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=Model, Mode=OneWay}" />
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemContainerStyle>
<Style>
<Setter Property="Canvas.Top" Value="{Binding Path=Top, Mode=OneWay}" />
<Setter Property="Canvas.Left" Value="{Binding Path=Left, Mode=OneWay}" />
</Style>
</ItemsControl.ItemContainerStyle>
</ItemsControl>
请注意,我在我的“DataTemplate”中显示了一个“TextBlock”控件,但缺乏您的控制。我在 TextBlock 的“文本”属性中显示了“模型”属性(我已将其定义为“字符串”)。您可以将“模型”属性分配给控件的“DataContext”属性,如您的示例中所示。
希望能帮助到你!