c# - AutoSuggestBox 显示属性名称而不是值

Question

在 AutoSuggestBox 中选择项目而不是它绑定(bind)到属性的属性值。

这是我的 xaml。

<AutoSuggestBox x:Name="txtSearchBox" ItemsSource="{Binding}"
                    PlaceholderText="Search in Distributor" Style="{StaticResource AutoSuggestBoxStyle1}" 
                    Margin="10,25,10,0" DisplayMemberPath="{Binding entityName}" TextMemberPath="{Binding entityName}"
                    BorderBrush="#000000" BorderThickness="2" TextChanged="txtSearchBox_TextChanged" 
                    SuggestionChosen="txtSearchBox_SuggestionChosen">
        <AutoSuggestBox.ItemTemplate>
            <DataTemplate>
                <TextBlock Text="{Binding entityName}"
                               Tag="{Binding entityId}"/>
            </DataTemplate>
        </AutoSuggestBox.ItemTemplate>
    </AutoSuggestBox>

这是背后的代码

     private void txtSearchBox_TextChanged(AutoSuggestBox sender, AutoSuggestBoxTextChangedEventArgs args)
    {
        if (args.Reason == AutoSuggestionBoxTextChangeReason.UserInput)
        {
            List<Master_User_Hierarchy_VM> lstUserHierarchy = new List<Master_User_Hierarchy_VM>();

            txtSearchBox.ItemsSource = null;
            foreach (Master_User_Hierarchy_VM obj in lstMaster_UserHierarchy_VM)
            {
                if (sender.Text != "")
                {
                    if (obj.entityName.Contains(sender.Text))
                    {
                        lstUserHierarchy.Add(obj);
                    } 
                }
            }

            txtSearchBox.ItemsSource = lstUserHierarchy;
        }
        else if (args.Reason == AutoSuggestionBoxTextChangeReason.SuggestionChosen)
        {
            //txtSearchBox.Text = txtSearchBox.Items[0].ToString();

        }
    }

    private void txtSearchBox_SuggestionChosen(AutoSuggestBox sender, AutoSuggestBoxSuggestionChosenEventArgs args)
    {
        txtSearchBox.Text = ((Master_User_Hierarchy_VM)args.SelectedItem).entityName;

    }

这是我输入一个字符的时候

当我点击这个列表中的一个项目时

我再次在建议框中获得所选项目。当我点击它时，我得到的是属性名称而不是值

Answer 1

使用

TextMemberPath="entityName"

代替

TextMemberPath="{Binding entityName}"