Question

我已经将这个List分配给我的xaml中的itemscontrol，我想显示列表中每个项目的编号：

    public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        string[] assignments = new string[] { "https://cdn2.iconfinder.com/data/icons/animals/48/Turtle.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Butterfly.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Dolphin.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Elephant.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Hippopotamus.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Panda.png" };
        Random rnd = new Random();

        string[] randomingArray = assignments.OrderBy(x => rnd.Next()).ToArray();

        string repeatNumber = "";

        List<string> animals = new List<string>(); 

        for (int i = 1; i < 100; i++)
        {
            if (i == 9)
            {
                repeatNumber = randomingArray[i % randomingArray.Length];
                animals.Add(repeatNumber);
            }
            else if ((i % 9) == 0)
            {
                animals.Add(repeatNumber);
            }
            else
            {
                animals.Add(randomingArray[i % randomingArray.Length]);
            }
            ItemsControl1.ItemsSource = animals;
        }
    }
}

xaml的代码：

<ListBox x:Name="ItemsControl1" >
        <ListBox.ItemTemplate>
            <DataTemplate>
                <Border BorderBrush="Black" BorderThickness="2" Width="Auto" Height="Auto">
                    <Image Source="{Binding}" Margin="0,0,5,0"/>
                </Border>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

基本上，应该有包含图片的方框，编号为1 - 99

我已尝试过List.count方法以及涉及xaml的其他内容，但是我无法让它工作。

Answer 1

创建一个使用Number和Image源作为属性的类，并更新ItemTemplate。见下面的代码。

<ListBox x:Name="ItemsControl1" >
        <ListBox.ItemTemplate>
            <DataTemplate>
                <Border BorderBrush="Black" BorderThickness="2" Width="Auto" Height="Auto">
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding Number}"/>
                        <Image Source="{Binding Source}" Margin="0,0,5,0"/>
                    </StackPanel>

                </Border>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        string[] assignments = new string[] { "https://cdn2.iconfinder.com/data/icons/animals/48/Turtle.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Butterfly.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Dolphin.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Elephant.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Hippopotamus.png", "https://cdn2.iconfinder.com/data/icons/animals/48/Panda.png" };
        Random rnd = new Random();

        string[] randomingArray = assignments.OrderBy(x => rnd.Next()).ToArray();

        string repeatNumber = "";

        List<ImageSource> animals = new List<ImageSource>();

        for (int i = 1; i < 100; i++)
        {
            if (i == 9)
            {
                repeatNumber = randomingArray[i % randomingArray.Length];
                animals.Add(new ImageSource(){ Source = repeatNumber, Number=i });
            }
            else if ((i % 9) == 0)
            {
                animals.Add(new ImageSource() { Source = repeatNumber, Number = i });
            }
            else
            {
                animals.Add(new ImageSource() { Source = randomingArray[i % randomingArray.Length], Number = i });
            }
            ItemsControl1.ItemsSource = animals;
        }
    }
}

class ImageSource
{
    public int Number { get; set; }
    public string Source { get; set; }
}

如何在ItemsControl中显示每个项目的编号？

1 个答案: