private void Button_操作记录查询_Click(object sender, RoutedEventArgs e) { if (string.IsNullOrEmpty(DatePicker_操作记录.Text) || string.IsNullOrEmpty(DatePicker_操作记录End.Text)) { MessageBoxCommon.Show("请选择查询时间的范围!"); return; } string dateStart = Convert.ToDateTime(DatePicker_操作记录.Text).ToString("yyyy-MM-dd HH:mm:ss"); string dateEnd = Convert.ToDateTime(DatePicker_操作记录End.Text).AddDays(1).ToString("yyyy-MM-dd HH:mm:ss"); ViewModel_操作日志 v = new ViewModel_操作日志(); this.DataGrid_操作记录.ItemsSource = v.GetData(dateStart, dateEnd); }