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 { /// /// WritableComboBox.xaml 的交互逻辑 /// 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; } } } }