/// <summary>
 /// <para>将字符串日期转换为datetime</para>
 /// <para>Return BaseDateTimeExtensions.GetCurrentDateTime() on error</para>
 /// </summary>
 /// <param name="strValue">string to convert</param>
 /// <returns>datetime</returns>
 public static DateTime TryParseDate(this string strValue)
 {
     return(strValue.TryParseDate(BaseDateTimeExtensions.GetCurrentDateTime(),
                                  BaseDateTimeExtensions.GetCurrentCulture(),
                                  BaseDateTimeExtensions.GetDefaultToDateDateTimeStyles()));
 }
 /// <summary>
 /// 测试字符串值是否是有效的日期值
 /// </summary>
 /// <param name="strValue">string value</param>
 /// <returns>true/false</returns>
 public static bool IsValidDate(this string strValue)
 {
     return(strValue.IsValidDate(
                BaseDateTimeExtensions.GetCurrentCulture(),
                BaseDateTimeExtensions.GetDefaultToDateDateTimeStyles()));
 }