using System.Windows.Controls; using System.Windows.Media; namespace MECF.Framework.UI.Client.TrayThickness { /// /// WinTrayThicknessDataView.xaml 的交互逻辑 /// public partial class WinTrayThicknessDataView : UserControl { public WinTrayThicknessDataView() { InitializeComponent(); } private void TextBox_TextChanged(object sender, TextChangedEventArgs e) { TextBox textBox = sender as TextBox; double input; if (!double.TryParse(textBox.Text, out input)) textBox.Foreground= Brushes.Red; else if (input < 0 || input > 9999999) textBox.Foreground = Brushes.Red; else textBox.Foreground = Brushes.Black; } } }