如何在 WPF 中将字典绑定到组合框

Question

当我将FoundItems字典绑定到 ComboBox 时，ComboBoxItems 项目变得像[1, FoundItem], [2, FoundItem] ... 。

但我想将RecordName绑定为显示值、 RecordID or Dictionary's Key作为选定项。 并且， SelectedItemID应该使用TwoWay绑定到 ComboBox 。

我正在努力实现这一目标 2 天。 而且还是没有结果。

public int SelectedItemID { get; set; }
public Dictionary<int, FoundItem> FoundItems { get; set; }


    FoundItems = new Dictionary<int, FoundItem>
    {
        { 1, new FoundItem() { RecordID = 1, RecordName = "Test Name 1" } },
        { 2, new FoundItem() { RecordID = 2, RecordName = "Test Name 2" } },
        { 3, new FoundItem() { RecordID = 3, RecordName = "Test Name 3" } },
        { 4, new FoundItem() { RecordID = 4, RecordName = "Test Name 4" } }
    };

FoundItem 类：

internal class FoundItem
{
    public int RecordID { get; set; }
    public string RecordName { get; set; }
}

Answer 1

尝试这个：

<ComboBox ItemsSource="{Binding FoundItems}" DisplayMemberPath="Value.RecordName"
          SelectedValuePath="Value.RecordID"
          SelectedValue="{Binding SelectedItemID}"/>