以编程方式绑定ItemsSource

Question

c＃代码中的等价物是什么？

<ListView
    x:Name="taskItemListView"
    DataContext="{Binding SelectedItem, ElementName=itemListView}"
    ItemsSource="{Binding taskItems}">
...
</ListView>

我已经尝试了以下代码，但它似乎无法正常工作......

Binding b = new Binding();
b.Path = new PropertyPath("taskItems");

DependencyProperty dp = DependencyProperty.Register("itemsSource", typeof(object), typeof(object), null);
BindingOperations.SetBinding(taskItemListView, dp, b);

修改：

根据@ sa_ddam213的回答，这有效：

Binding dataContextBinding = new Binding();
dataContextBinding.Path = new PropertyPath("SelectedItem");
dataContextBinding.Source = itemListView;
BindingOperations.SetBinding(taskItemListView, ListView.DataContextProperty, dataContextBinding );

Binding sourceBinding = new Binding();
sourceBinding.Path = new PropertyPath("taskItems");
BindingOperations.SetBinding(taskItemListView, ListView.ItemsSourceProperty, sourceBinding );

Answer 1

这样的事情应该有效：

BindingOperations.SetBinding(taskItemListView, ListView.DataContextProperty, new Binding("SelectedItem") { Source = itemListView});
BindingOperations.SetBinding(taskItemListView, ListView.ItemsSourceProperty, new Binding("taskItems") { Source = this });

注意：“来源=此”this等于持有taskItems，SelectedItem

的班级

Answer 2

一种简单的方法是通过SetValue：

taskItemListView.SetValue(ListView.ItemsSourceProperty, this.Source);

更多信息，请点击此处：DependencyObject.SetValue method