WPF ComboBox Selected Item 引用一个对象

Question

我正在尝试在组合框中定义选定的项目。如果我只是使用字符串来声明所选项目但如果使用对象则不行。

<ComboBox HorizontalAlignment="Left"
  VerticalAlignment="Top" Width="81" materialDesign:HintAssist.Hint="Woche" Margin="10" 
  ItemsSource="{Binding weekSelection}" 
  DisplayMemberPath="name" 
  SelectedItem="{Binding nodeWeek, Mode=TwoWay}"  
SelectedValue="name" />

-

private week _nodeWeek;
public week nodeWeek
{
    get
    {
       return _nodeWeek;
    }
    set
    {
        _nodeWeek = value;
        RaisePropertyChanged("nodeWeek");
    }
}

-

 public class week
 {
    public int val { get; set; }

    public String name { get; set; }
 }

- 设置所选项目

this.nodeWeek = new week() { val = times.GetIso8601WeekOfYear(DateTime.Now), name = "KW " + times.GetIso8601WeekOfYear(DateTime.Now).ToString() };

有办法解决这个问题吗？

Answer 1

所选项目必须始终是您的项目来源列表之一。您不能创建新对象并将它们分配给 SelectedItem。 Combobox 只是比较对象引用而不是内容。

WPF ComboBox Selected Item 引用一个对象

WPF ComboBox Selected Item with reference to an object

c#

wpf

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