创建树视图绑定 wpf
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Creating treeview binding wpf
提问by GodsCrimeScene
I have been trying to make a treeview that looks something like
我一直在尝试制作一个看起来像的树视图
2001(root)
-Student1(node)
-Student2(node)
2001（根）
-Student1（节点）
-Student2（节点）
I've tried to use hierarchicaldatatemplates but I'm still not grasping what I need to. This is my code that i'm looking to bind my treeview to. Any help with the Xaml would be appriciated.
我试过使用分层数据模板，但我仍然不明白我需要什么。这是我希望将我的树视图绑定到的代码。任何有关 Xaml 的帮助都会得到帮助。
I thought it would look something like
我以为它看起来像
<TreeView ItemsSource="{Binding CurrentClass}">
<TreeView.Resources>
<HierarchicalDataTemplate DataType="{x:Type local:Student}" ItemsSource="{Binding CurrentClass.Students}">
<TextBlock Text="{Binding CurrentClass.Students/FirstName}" />
</HierarchicalDataTemplate>
</TreeView.Resources>
</TreeView>
public class ViewModel
{
public FreshmenClass currentClass = new FreshmenClass();
public ViewModel()
{
currentClass.Year = "2001";
currentClass.Students.Add(new Student("Student1", "LastName1"));
currentClass.Students.Add(new Student("Student2", "LastName2"));
}
public FreshmenClass CurrentClass
{
get { return currentClass; }
}
}
public class FreshmenClass
{
public string Year { get; set; }
public List<Student> students = new List<Student>();
public List<Student> Students
{
get { return students; }
set { students = value; }
}
}
public class Student
{
public string FirstName { get; set; }
public string LastName { get; set; }
public Student(string firstName, string lastName)
{
FirstName = firstName;
LastName = lastName;
}
}
回答by michele
Take a look to the documentation about Treeview and HierarchicalDataTemplate. Anyway I edit your example like this (XAML):
查看有关 Treeview 和 HierarchicalDataTemplate 的文档。无论如何，我像这样编辑您的示例（XAML）：
<TreeView ItemsSource="{Binding CurrentClass}" >
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Students}">
<TextBlock Text="{Binding Year}" />
<HierarchicalDataTemplate.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding FirstName}"> </TextBlock>
</DataTemplate>
</HierarchicalDataTemplate.ItemTemplate>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
and c#:
和 C#：
public class ViewModel
{
private List<FreshmenClass> currentClass;
public ViewModel()
{
CurrentClass = new List<FreshmenClass>();
FreshmenClass temp = new FreshmenClass();
temp.Year = "2001";
temp.Students.Add(new Student("Student1", "LastName1"));
temp.Students.Add(new Student("Student2", "LastName2"));
CurrentClass.Add(temp);
}
public List<FreshmenClass> CurrentClass
{
get { return currentClass; }
set { currentClass = value; }
}
}
the ItemsSource property is an IEnumerable.
ItemsSource 属性是一个 IEnumerable。
