Question

我使用.NET 3.5和WPF Toolkit进行DataGrid控件。我希望datagrid显示一个项集合，以及一个组合框列来显示集合中的一个项目。我可能在绑定方面做错了，但是当我运行它时，组合框列是空白的，但是我可以从组合框中选择一个项目然后显示它。任何帮助非常感谢，谢谢！

我的XAML：

    <tk:DataGrid Name="MyDataGrid" AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False">
        <tk:DataGrid.Columns>
            <tk:DataGridTextColumn Header="Description" Binding="{Binding Description}"/>
            <tk:DataGridComboBoxColumn x:Name="MyComboBox" Header="Member" SelectedItemBinding="{Binding MyMember}"/>
        </tk:DataGrid.Columns>
    </tk:DataGrid>

我的代码：

class Member
{
    public string Id { get; set; }
    public string Name { get; set; }

    public override string ToString()
    {
        return Id + " - " + Name;
    }
}

class Data
{
    public string Description { get; set; }
    public Member MyMember { get; set; }
}

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

        var list = new List<Member>()
        {
            new Member() { Id = "01", Name = "aaa" },
            new Member() { Id = "02", Name = "bbb" },
            new Member() { Id = "03", Name = "ccc" }
        };

        MyComboBox.ItemsSource = list;

        var datalist = new List<Data>()
        {
            new Data() { Description = "abc", MyMember = new Member() { Id = "01", Name = "aaa" } },
            new Data() { Description = "def", MyMember = new Member() { Id = "02", Name = "bbb" } },
            new Data() { Description = "ghi", MyMember = new Member() { Id = "03", Name = "ccc" } }
        };

        MyDataGrid.ItemsSource = datalist;
    }
}

Answer 1

 var list = new List<Member>()
    {
        new Member() { Id = "01", Name = "aaa" },
        new Member() { Id = "02", Name = "bbb" },
        new Member() { Id = "03", Name = "ccc" }
    };
        **Member _me = new Member() { Id = "04", Name = "ddd" };
        list.Add(_me);**
        MyComboBox.ItemsSource = list;

        var datalist = new List<Data>()
    {
        new Data() { Description = "abc", **MyMember = _me** },
        new Data() { Description = "def", MyMember = new Member() { Id = "02", Name = "bbb" } },
        new Data() { Description = "ghi", MyMember = new Member() { Id = "03", Name = "ccc" } }
    };

        MyDataGrid.ItemsSource = datalist;

在向列表中添加项目时进行了少量更改。添加的项目与分配所选项目的内容不同。

将datagrid组合框绑定到对象不起作用

1 个答案: