Question

我有以下XAML代码：

  <TabControl x:Name="MainTabControl" ItemsSource="{Binding Projects}" Grid.Row="1">
        <TabControl.ItemTemplate>
            <DataTemplate>
                <TabItem x:Name="ProjectTabItem" Header="{Binding ProjectName}">
                    <TextBox>This text doesn't get displayed.</TextBox>
                </TabItem>
            </DataTemplate>
        </TabControl.ItemTemplate>
    </TabControl>

我绑定的C＃代码：

public IList<SharedProject> GetDummyData()
{
    IList<SharedProject> projects = new List<SharedProject>();

    SharedProject project1 = new SharedProject();
    project1.Id = 1;
    project1.ProjectName = "ProjectOne";
    project1.ProjectDescription = "DescriptionOne";
    project1.ProjectStartDate = DateTime.Now;
    project1.ProjectEndDate = DateTime.Now.AddDays(30);
    projects.Add(project1);

    SharedProject project2 = new SharedProject();
    project2.Id = 2;
    project2.ProjectName = "ProjectTwo";
    project2.ProjectDescription = "DesciptionTwo";
    project2.ProjectStartDate = DateTime.Now;
    project2.ProjectEndDate = DateTime.Now.AddDays(30);
    projects.Add(project2);

    return projects;
}

绑定项目和ProjectName有效，数据显示。问题是，无论我有什么内容（在这个例子中只是一个TextBox），TabItem的内容都不会显示。我注意到这个问题只有在我进行Binding时仍然存在。如果我从TabContem和TabItem的硬编码标题中删除绑定，一切正常。

Answer 1

定义标题和内容的模板：

<强>更新

<TabControl Name="TabControl">
        <TabControl.ItemTemplate>
            <DataTemplate>
                <TextBlock Text="{Binding Name}" />
            </DataTemplate>
        </TabControl.ItemTemplate>
        <TabControl.ContentTemplate>
            <DataTemplate>
                <TextBox Text="{Binding Content}"></TextBox>
            </DataTemplate>
        </TabControl.ContentTemplate>
    </TabControl>

public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            Projects = new List<Test>();
            Projects.Add(new Test("Tab1", "Content1"));
            Projects.Add(new Test("Tab2", "Content2"));
            Projects.Add(new Test("Tab3", "Content3"));
            TabControl.ItemsSource = Projects;
        }

        public List<Test> Projects
        {
            get;
            set;
        }
    }

    public class Test
    {
        public Test(string name, string content)
        {
            this.Name = name;
            this.Content = content;
        }

        public string Name { get; set; }
        public string Content { get; set; }
    }

XAML：绑定TabControl时，不显示TabItem的内容

1 个答案: