我有一个动态加载的用户控件库。从那个库中,我将一个 Tabitem 插入到 TabControl 中。我可以加载标签并显示它而不会出错。但是,我似乎无法使控件上的绑定起作用。
这是我用来加载它并将其添加到 TabControl 的代码:
Assembly moduleAssembly = Assembly.Load("ControlLib");
UserControl uc = (UserControl)Application.LoadComponent(new System.Uri("/ControlLib;component/UserControl1.xaml", UriKind.RelativeOrAbsolute));
TabControl itemsTab = (TabControl)this.FindName("mainTabControl");
TabItem newTab = new TabItem();
newTab.Content = uc;
newTab.Header = "Test";
itemsTab.Items.Add(newTab);
itemsTab.SelectedItem = newTab;
这是控件的 C# 代码:
public partial class UserControl1 : UserControl
{
public static readonly DependencyProperty TestStringProperty =
DependencyProperty.Register("TestString", typeof(string), typeof(UserControl1));
public string TestString { get; set; }
public UserControl1()
{
InitializeComponent();
TestString = "Hello World";
}
}
这是控件的 XAML 代码:
<UserControl x:Class="ControlLib.UserControl1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<Grid>
<TextBox Height="30" Width="100" HorizontalAlignment="Left" VerticalAlignment="Bottom" Text="{Binding Path=TestString, Mode=TwoWay}" />
</Grid>
</UserControl>
当标签显示所有内容时,我看到文本框中的空白而不是“ Hello World”
我错过了什么?