带有包含的 WPF 组合框文本搜索

Question

如何使用 contains 实现我的 Combobox TextSearch而不是 StartsWith

<rf:ComboBox Grid.Row="1"
                         Grid.Column="5"
                         Width="200"
                         ItemsSource="{Binding Source={StaticResource AccountProvider}}"
                         DisplayMemberPath="Description"
                         SelectedValuePath="IndRekId"
                         IsEmptyItemVisible="True"
                         SelectedValue="{Binding Id, UpdateSourceTrigger=PropertyChanged}"
                         IsTextSearchEnabled="True"
                         TextSearch.TextPath="Description"
                         IsEditable="True"/>

搜索功能有效，但我需要匹配子字符串

Answer 1

试试这个:

 <ComboBox Padding="3,5" MinWidth="150" SelectedItem="{Binding NewBoxRequest}"
 ItemsSource="{Binding Requests}" DisplayMemberPath="SN" IsEditable="True"
 StaysOpenOnEdit="True"
 Text="{Binding SnFilter,UpdateSourceTrigger=PropertyChanged}">
 </ComboBox>

查看模型:

    private string snFilter;

    public string SnFilter
    {
        get { return snFilter; }
        set
        {
            snFilter = value;
            RaisePropertyChanged();
            RaisePropertyChanged(nameof(Requests));
        }
    }
    private List<Request> requests;

    public List<Request> Requests
    {
        get => string.IsNullOrEmpty(SnFilter) || requests.Any(r => r.SN == SnFilter)
            ? requests
            : requests.Where(r => r.SN.Contains(SnFilter)).ToList();
        set
        {
            requests = value;
            RaisePropertyChanged();
        }
    }