从后面的代码将自定义列表对象属性绑定到文本框

Question

学生班

public class Student
{
    string name;        

    List<SubjectInfo> subjectInfoList;        

    ....
}

List<SubjectInfo>列表可以为不同的学生提供不同数量的SubjectInfo个对象。

SubjectInfo类

public class SubjectInfo
{
    string subjectCode;

    int marks;

    ...
}

我想在窗口上显示学生对象的详细信息。由于列表具有不同数量的对象计数，因此我从后面的代码中生成了这些对象。

int i = 10;

        foreach (SubjectInfo info in student.SubjectInfoList)
        {
            TextBox tb = new TextBox();
            tb.Width = 200;
            tb.Height = 20;
            tb.Margin = new Thickness(10, i, 0, 0);
            StudentDataGrid.Children.Add(tb);
            i += 60;
        }

我想从后面的代码绑定此列表列表。但我不知道这样做。
我想绑定student.SubjectInfoList

的标记属性

请帮我从代码隐藏中获取绑定列表对象属性。

修改
这是示例学生对象;

Student student = new Student("Joe", new List<SubjectInfo>() { new SubjectInfo("Subject1", 50), new SubjectInfo("Subject2", 70)});  

我的窗口应该是这样的;

注意如果学生共完成4个科目TextBox次计数为5。

Answer 1

最好在XAML中完成。 但如果您真的想在代码隐藏中执行此操作，请尝试此操作。 SubjectInfo的字段必须是公共的。

foreach (SubjectInfo info in student.SubjectInfoList)
{
   TextBox tb = new TextBox();
   ///...
   tb.DataContext = info;
   Binding binding = new Binding("marks");
   tb.SetBinding(TextBox.TextProperty, binding);
   ///...
}

Answer 2

Pure XAML解决方案：

<Window  (... your window attributes) >

    ....

    <Grid x:Name="StudentDataGrid">
        <ListView ItemsSource="{Binding SubjectInfoList}">
            <ListView.ItemTemplate>
                <DataTemplate DataType="{x:Type local:SubjectInfo}">
                    <TextBox Text="{Binding Marks}"/>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
    </Grid>
</Window>

但要让它工作，你必须将你的字段转换为公共属性：

public class Student
{
    string name;        

    public List<SubjectInfo> SubjectInfoList { get; set; }

    ....
}

和

public class SubjectInfo
{
    string subjectCode;

    public int Marks { get; set; }

    ...
}

更新

XAML：

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApplication1"
        Title="MainWindow" Height="350" Width="525">


    <Grid x:Name="StudentGrid">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

        <TextBlock Text="Student name :" Grid.Row="0" Grid.Column="0"/>
        <TextBlock Text="Student marks :" Grid.Row="1" Grid.Column="0"/>

        <TextBox Text="{Binding Name}" Grid.Row="0" Grid.Column="1" />

        <ListView Grid.Row="1" Grid.Column="1" ItemsSource="{Binding SubjectInfoList}" BorderThickness="0">
            <ListView.ItemTemplate>
                <DataTemplate DataType="{x:Type local:SubjectInfo}">
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="100"/>
                            <ColumnDefinition Width="50"/>
                        </Grid.ColumnDefinitions>

                        <TextBlock Grid.Column="0" Text="{Binding SubjectCode}"/>
                        <TextBox Grid.Column="1" Text="{Binding Marks}"/>
                    </Grid>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
    </Grid>
</Window>

代码：

using System.Collections.Generic;
using System.Windows;

namespace WpfApplication1
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            Student student = new Student("Joe", new List<SubjectInfo>() { new SubjectInfo("Subject1", 50), new SubjectInfo("Subject2", 70) });
            StudentGrid.DataContext = student;
        }
    }

    public class Student
    {
        public string Name { get; set; }
        public List<SubjectInfo> SubjectInfoList { get; set; }

        public Student(string name, List<SubjectInfo> list)
        {
            Name = name;
            SubjectInfoList = list;
        }
    }

    public class SubjectInfo
    {
        public string SubjectCode { get; set; }
        public int Marks { get; set; }

        public SubjectInfo(string subjectCode, int marks)
        {
            SubjectCode = subjectCode;
            Marks = marks;
        }
    }
}