【发布时间】:2023-03-31 19:15:01
【问题描述】:
我可以像这样绑定 ListBox:
XAML:
<UserControl x:Class="TestDynamicForm123.Views.ViewCustomers"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<StackPanel Margin="10">
<ListBox ItemsSource="{Binding}"/>
</StackPanel>
</UserControl>
代码隐藏:
using System.Windows.Controls;
using TestDynamicForm123.ItemTypes;
namespace TestDynamicForm123.Views
{
public partial class ViewCustomers : UserControl
{
public ViewCustomers()
{
InitializeComponent();
DataContext = Customers.GetAll();
}
}
}
查看模型:
using System.Collections.ObjectModel;
namespace TestDynamicForm123.ItemTypes
{
class Customers : ItemTypes
{
protected ObservableCollection<Customer> collection;
public static ObservableCollection<Customer> GetAll()
{
ObservableCollection<Customer> customers = new ObservableCollection<Customer>();
customers.Add(new Customer() { FirstName = "Jay", LastName = "Anders", Age = 34 });
customers.Add(new Customer() { FirstName = "Jim", LastName = "Smith", Age = 23 });
customers.Add(new Customer() { FirstName = "John", LastName = "Jones", Age = 22 });
customers.Add(new Customer() { FirstName = "Sue", LastName = "Anders", Age = 21 });
customers.Add(new Customer() { FirstName = "Chet", LastName = "Rogers", Age = 35 });
customers.Add(new Customer() { FirstName = "James", LastName = "Anders", Age = 37 });
return customers;
}
}
}
但是我如何“将它提升一个级别”,以便我可以在代码中绑定到客户本身并在我的 XAML 中绑定到客户的各种方法,例如一个 ListBox 的 GetAll() 和另一个控件的 GetBest() 等等?
我在后面的代码中尝试了这种语法:
DataContext = new Customers();
这两种语法在 XAML 中都不起作用:
<ListBox ItemsSource="{Binding GetAll}"/> (returns blank ListBox)
<ListBox ItemsSource="{Binding Source={StaticResource GetAll}}"/> (returns error)
【问题讨论】:
标签: c# wpf data-binding xaml