TA貢獻1820條經驗 獲得超10個贊
經過與 WPF 的大量斗爭，我有一個為您工作的概念證明：
主窗口.xaml
<Window x:Class="Solutions.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<TextBox VerticalAlignment="Center" HorizontalAlignment="Center" x:Name="SuggestionBox" Width="200"
/>
</Grid>
</Window>
主窗口.xaml.cs：
using System.Linq;
using System.Windows;
using System.Windows.Controls;
namespace Solutions
{
public partial class MainWindow : Window
{
private static readonly string[] SuggestionValues = {
"England",
"USA",
"France",
"Estonia"
};
public MainWindow()
{
InitializeComponent();
SuggestionBox.TextChanged += SuggestionBoxOnTextChanged;
}
private string _currentInput = "";
private string _currentSuggestion = "";
private string _currentText = "";
private int _selectionStart;
private int _selectionLength;
private void SuggestionBoxOnTextChanged(object sender, TextChangedEventArgs e)
{
var input = SuggestionBox.Text;
if (input.Length > _currentInput.Length && input != _currentSuggestion)
{
_currentSuggestion = SuggestionValues.FirstOrDefault(x => x.StartsWith(input));
if (_currentSuggestion != null)
{
_currentText = _currentSuggestion;
_selectionStart = input.Length;
_selectionLength = _currentSuggestion.Length - input.Length;
SuggestionBox.Text = _currentText;
SuggestionBox.Select(_selectionStart, _selectionLength);
}
}
_currentInput = input;
}
}
}
下一步是將其轉換為用戶控件，以便您可以通過綁定設置您的建議，但您可以自行處理。
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