PDFOffice_Windows_exe/PDF Office/CustomControl/WritableComboBox.xaml.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace PDF_Office.CustomControl
{
    /// <summary>
    /// WritableComboBox.xaml 的交互逻辑
    /// </summary>
    public partial class WritableComboBox : UserControl
    {
        public WritableComboBox()
        {
            InitializeComponent();
        }
        private void writableComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (this.writableComboBox.SelectedIndex == this.writableComboBox.Items.Count - 1)
            {
                this.writableTextBox.Width = this.writableComboBox.ActualWidth - 18;
                Trace.WriteLine(this.writableComboBox.ActualWidth);
                this.writableTextBox.Visibility = Visibility.Visible;
            }
            else
            { 
                this.writableTextBox.Visibility = Visibility.Collapsed;
            }
        }


    }
}