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C# 未选择具有数据模板值的组合框_C#_Wpf_Combobox_Datatemplate - Fatal编程技术网

C# 未选择具有数据模板值的组合框

C# 未选择具有数据模板值的组合框,c#,wpf,combobox,datatemplate,C#,Wpf,Combobox,Datatemplate,当我选择一个元素时,我有一个带有DataTemplate的组合框,所选元素的名称显示为Selected。我该怎么做才能使所选元素的名称显示在Selection中,如打开的组合框所示 组合框的XAML: <ComboBox ItemsSource="{Binding}" Margin="51,146,238,146" BorderThickness="0" HorizontalAlignme

当我选择一个元素时,我有一个带有DataTemplate的组合框,所选元素的名称显示为Selected。我该怎么做才能使所选元素的名称显示在Selection中,如打开的组合框所示

组合框的XAML:

<ComboBox  
            ItemsSource="{Binding}"

            Margin="51,146,238,146"
            BorderThickness="0"
            HorizontalAlignment="Stretch" 
            HorizontalContentAlignment="Stretch"                                                   
            Padding="3" Height="20" IsEditable="True"

            SelectedValuePath="Name"

            x:Name="testCombobox" SelectionChanged="testCombobox_SelectionChanged">
            <ComboBox.ItemTemplate>
                <DataTemplate>
                    <TextBox
                        Text="{Binding Path=Name}"

                        Padding="1,1,1,1"
                        AcceptsReturn="True"
                        Background="Yellow">
                    </TextBox>
                </DataTemplate>
            </ComboBox.ItemTemplate>

你可能会遇到两个问题;First ItemsSource=“{Binding}”无法获取所需的数据源。另一个错误是,冰顶路应该是公共财产,所以 ObservableCollection personen=新的ObservableCollection() 应更改为如下属性:

public ObservableCollection<Person> Person
{
get
{
 return person;
}
set
{
  person=value;
  OnPropertyChange("Personen")
}
}
private  ObservableCollection<Person> personen = new ObservableCollection<Person>()
公众可观察收集人
{
得到
{
返回人;
}
设置
{
人=价值;
关于财产变更(“个人”)
}
}
私有ObservableCollection personen=新ObservableCollection()

您应该查看DisplayMemberPath和SelectedValuePath之间的差异。
public class Person : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(PropertyChangedEventArgs e)
        {
            if (PropertyChanged != null)
                PropertyChanged(this, e);
        }




        private string _Name;
        private int _Alter;
        public Person(string name, int alter)
        {
            Name = name;
            Alter = alter;
        }

        public int Alter
        {
            get { return _Alter; }
            set
            {
                _Alter = value;
                OnPropertyChanged(new PropertyChangedEventArgs("Alter"));
            }
        }
        public string Name
        {
            get { return _Name; }
            set
            {
                _Name = value;
                OnPropertyChanged(new PropertyChangedEventArgs("Name"));
            }
        }

    }
public ObservableCollection<Person> Person
{
get
{
 return person;
}
set
{
  person=value;
  OnPropertyChange("Personen")
}
}
private  ObservableCollection<Person> personen = new ObservableCollection<Person>()