private void TextBoxPrize_PreviewKeyDown(object sender, KeyEventArgs e) { if (e.Key != Key.Enter) { return; } TextBoxPrize.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next)); CheckEmpty(); }
private void TextBoxPrize_PreviewKeyDown(object sender, KeyEventArgs e) { if (e.Key != Key.Enter) { return; } TextBoxPrize.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next)); if (string.IsNullOrWhiteSpace(TextBoxPrize.Text)) { ButtonUpdate.IsEnabled = false; return; } try { decimal tempMoney = Convert.ToDecimal(TextBoxPrize.Text); CheckEmpty(); } catch (Exception) { MessageBox.Show("奖金格式不对,应为有效数字"); ButtonUpdate.IsEnabled = false; } }