Checks whether a date time is between two date times. - CSharp System

CSharp examples for System:DateTime Calculate

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Description

Checks whether a date time is between two date times.

Demo Code

//     Copyright (c) Rico Suter. All rights reserved.
using System;/*from   w w  w  . j a  va  2s  .co m*/

public class Main{
        /// <summary>Checks whether a date time is between two date times. </summary>
        /// <param name="dt">The date time to work with. </param>
        /// <param name="start">The starting date time. Null means undefinitely in the past. </param>
        /// <param name="end">The ending start time. Null means undefinitely in the future. </param>
        /// <returns>True when the date time is between. </returns>
        public static bool IsBetween(this DateTime? dt, DateTime? start, DateTime? end)
        {
            return dt.HasValue && dt.Value.IsBetween(start, end);
        }
        /// <summary>
        /// Checks whether a date time is between two date times. 
        /// </summary>
        /// <param name="dt">The date time to work with. </param>
        /// <param name="start">The starting date time. Null means undefinitely in the past. </param>
        /// <param name="end">The ending start time. Null means undefinitely in the future. </param>
        /// <returns>True when the date time is between. </returns>
        public static bool IsBetween(this DateTime dt, DateTime? start, DateTime? end)
        {
            return (start == null || start.Value <= dt) && (end == null || dt < end.Value);
        }
        /// <summary>Checks whether a date time is between two date times. </summary>
        /// <param name="dt">The date time to work with. </param>
        /// <param name="start">The starting date time. </param>
        /// <param name="end">The ending start time. Null means undefinitely in the future. </param>
        /// <returns>True when the date time is between. </returns>
        public static bool IsBetween(this DateTime? dt, DateTime start, DateTime? end)
        {
            return dt.HasValue && dt.Value.IsBetween(start, end);
        }
        /// <summary>Checks whether a date time is between two date times. </summary>
        /// <param name="dt">The date time to work with. </param>
        /// <param name="start">The starting date time. </param>
        /// <param name="end">The ending start time. Null means undefinitely in the future. </param>
        /// <returns>True when the date time is between. </returns>
        public static bool IsBetween(this DateTime dt, DateTime start, DateTime? end)
        {
            return start <= dt && (end == null || dt < end.Value);
        }
        /// <summary>Checks whether a date time is between two date times. </summary>
        /// <param name="dt">The date time to work with. </param>
        /// <param name="start">The starting date time. </param>
        /// <param name="end">The ending start time. </param>
        /// <returns>True when the date time is between. </returns>
        public static bool IsBetween(this DateTime? dt, DateTime start, DateTime end)
        {
            return dt.HasValue && dt.Value.IsBetween(start, end);
        }
        /// <summary>Checks whether a date time is between two date times. </summary>
        /// <param name="dt">The date time to work with. </param>
        /// <param name="start">The starting date time. </param>
        /// <param name="end">The ending start time. </param>
        /// <returns>True when the date time is between. </returns>
        public static bool IsBetween(this DateTime dt, DateTime start, DateTime end)
        {
            return start <= dt && dt < end;
        }
}

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