使用C＃中的时间间隔填充下拉列表 [英] populate the dropdown list with time interval in C#

问题描述

我正在寻找一个以时间间隔填充下拉列表的函数。例如，当用户点击下拉列表时，应该有：

I am seeking a function to populate the dropdown list with time interval. For example, when user clicks the dropdown list, there should be like:

8:00AM

8:30AM

9:00AM

....

12:00PM

12:30PM

如何在C＃中执行此操作？

How can I do this in C#?

推荐答案

请参阅以下链接simillar问题： -

http://social.msdn.microsoft.com/Forums/en-US/ca21c56a-079e-438a-9a27-5e20a8471d82/how-to-bind- dropdown-box-with-time-interval？forum = csharpgeneral [ ^ ]

refer below link for simillar question:-
http://social.msdn.microsoft.com/Forums/en-US/ca21c56a-079e-438a-9a27-5e20a8471d82/how-to-bind-dropdown-box-with-time-interval?forum=csharpgeneral[^]

试试这个：

Try this:

private void populateDropdown(ComboBox dropdown, DateTime startTime, DateTime endTime, TimeSpan interval)
{
    dropdown.Items.Clear();

    DateTime time = startTime;

    while (time <= endTime)
    {
        dropdown.Items.Add(time.ToString("HH:mm tt"));
        time = time.Add(interval);
    }
}

然后这样打电话：

Then call it like this:

populateDropdown(comboBox1, new DateTime(2000, 1, 1, 8, 0, 0), new DateTime(2000, 1, 1, 12, 30, 0), new TimeSpan(0, 30, 0));

除了以上两个解决方案，

你也可以尝试这个..

On top of above two solutions,
you can try this too..

DateTime start = DateTime.ParseExact(txtStart.Text,"HH:mm tt", null);
       DateTime end = DateTime.ParseExact(txtEnd.Text, "HH:mm tt", null);

       int interval = 30;
       List<string> lstTimeIntervals = new List<string>();
       for (DateTime i = start; i < end; i =i.AddMinutes(interval))
           lstTimeIntervals.Add(i.ToString("HH:mm tt"));

       dropdownList.DataSource = lstTimeIntervals;
       dropdownList.DataBind();

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