Question

我尝试使用具有预定义布局的对象填充ListBox，但我找不到一个可靠的示例。这是我目前正在做的事情。任何提示将不胜感激。

XAML：

<ListBox x:Name="listBox1">
  <ListBox.ItemTemplate>
    <DataTemplate>
      <StackPanel>
        <Image Source="{Binding Icon}"/>
        <TextBlock Text="{Binding Name}"/>
      </StackPanel>
    </DataTemplate>
  </ListBox.ItemTemplate>
</ListBox>

PopulationCode：

List<JObject> json = JsonConvert.DeserializeObject<List<JObject>>(response);
for (int i = 0; i < json.Count(); i++)
{
    JObject location = json[i];
    pages.Add(new Page(location.GetValue("name").ToString(), location.GetValue("icon").ToString()));
    Deployment.Current.Dispatcher.BeginInvoke(() =>
    {
        if (this.listBox1 == null)
        {
            Out("list==null");
        }
        else if (pages == null)
        {
            Out("pages==null");
        }
        else
            listBox1.ItemsSource = pages;
    });
}

数据对象：

public partial class Page
{
    public String Name;
    public String Icon;

    public Page(String name, String icon)
    {
        Name = name;
        Icon = icon;
    }
}

错误：

System.Windows.Data Error: BindingExpression path error: 'Icon' property not found on 'Mavie_Base.MainPage+Page' 'Mavie_Base.MainPage+Page' (HashCode=45797138). BindingExpression: Path='Icon' DataItem='Mavie_Base.MainPage+Page' (HashCode=45797138); target element is 'System.Windows.Controls.Image' (Name=''); target property is 'Source' (type 'System.Windows.Media.ImageSource')..
System.Windows.Data Error: BindingExpression path error: 'Name' property not found on 'Mavie_Base.MainPage+Page' 'Mavie_Base.MainPage+Page' (HashCode=45797138). BindingExpression: Path='Name' DataItem='Mavie_Base.MainPage+Page' (HashCode=45797138); target element is 'System.Windows.Controls.TextBlock' (Name=''); target property is 'Text' (type 'System.String')..
System.Windows.Data Error: BindingExpression path error: 'Icon' property not found on 'Mavie_Base.MainPage+Page' 'Mavie_Base.MainPage+Page' (HashCode=5425146). BindingExpression: Path='Icon' DataItem='Mavie_Base.MainPage+Page' (HashCode=5425146); target element is 'System.Windows.Controls.Image' (Name=''); target property is 'Source' (type 'System.Windows.Media.ImageSource')..
System.Windows.Data Error: BindingExpression path error: 'Name' property not found on 'Mavie_Base.MainPage+Page' 'Mavie_Base.MainPage+Page' (HashCode=5425146). BindingExpression: Path='Name' DataItem='Mavie_Base.MainPage+Page' (HashCode=5425146); target element is 'System.Windows.Controls.TextBlock' (Name=''); target property is 'Text' (type 'System.String')..
System.Windows.Data Error: BindingExpression path error: 'Icon' property not found on 'Mavie_Base.MainPage+Page' 'Mavie_Base.MainPage+Page' (HashCode=5541955). BindingExpression: Path='Icon' DataItem='Mavie_Base.MainPage+Page' (HashCode=5541955); target element is 'System.Windows.Controls.Image' (Name=''); target property is 'Source' (type 'System.Windows.Media.ImageSource')..
System.Windows.Data Error: BindingExpression path error: 'Name' property not found on 'Mavie_Base.MainPage+Page' 'Mavie_Base.MainPage+Page' (HashCode=5541955). BindingExpression: Path='Name' DataItem='Mavie_Base.MainPage+Page' (HashCode=5541955); target element is 'System.Windows.Controls.TextBlock' (Name=''); target property is 'Text' (type 'System.String')..

Answer 1

您绑定到公共字段不属性，这正是错误消息告诉您的内容。将模型的字段更改为属性：

public partial class Page
{
    public String Name { get; private set; }
    public String Icon { get; private set; }

    public Page(String name, String icon)
    {
        Name = name;
        Icon = icon;
    }
}

使用预定义布局填充ListBox

1 个答案: