我相信您可以弄清楚如何做您所要求的,但是让我们考虑一下手头的工具?你有一个布尔数组,看起来。正如建议的那样,ItemsControl 可以很好地处理它们。首先,让我们做一些代码隐藏来将我们的布尔值转换为画笔来设置我们项目的背景。
using System;
using System.Windows.Media;
using System.Windows.Data;
using System.Globalization;
namespace MyNamespace
{
public class BoolToBrushConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
// return a Pink SolidColorBrush if true, a Maroon if false
return (bool)value ? Brushes.Pink : Brushes.Maroon;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return (SolidColorBrush)value == Brushes.Pink;
}
}
}
这将允许您bool[] bitArray
在绑定到ItemsControl
. 现在对于一些 Xaml :
首先,确保在 xmlns 属性以及系统核心库(参见 xmlns 属性)中声明了本地命名空间(其中包含我们刚刚定义的转换器)。
<Window x:Class="MyNamespace.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
<!-- our local namespace -->
xmlns:my="clr-namespace:MyNamespace"
<!-- system core library -->
xmlns:sys="clr-namespace:System;assembly=mscorlib"
Title="MainWindow" Height="600" Width="900">
<Grid>
<ItemsControl Name="LEDPanel"> <!-- Need to Name this Control in order to set the ItemsSource Property at startup -->
<ItemsControl.Resources>
<my:BoolToBrushConverter x:Key="LEDConverter" /> <!-- Here we define our converter for use, note the preceding my: namespace declaration -->
</ItemsControl.Resources>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" /> <!-- this will make the items defined in the ItemTemplate appear in a row -->
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate DataType="{x:Type sys:Boolean}"> <-- We will be binding our ItemsControl to a bool[] so each Item will be bound to a bool -->
<Border Margin="3" CornerRadius="10" Height="20" Width="20" BorderThickness="2" BorderBrush="Silver" Background="{Binding Converter={StaticResource LEDConverter}}" />
<!-- This is where we describe our item. I'm drawing a round silver border and then binding the Background to the item's DataContext (implicit) and converting the value using our defined BoolToBrushConverter -->
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</Grid>
</Window>
编辑:我忘记了数据绑定。在窗口的构造函数中:
public MainWindow()
{
InitializeComponent();
LEDPanel.ItemsSource = bitArray;
}