Selecting a date form the datTimePicker

Here is a code snippet where in I have to select a proper date to book an appointment, it should do a simple validation that the date 开发者_StackOverflow社区selected for the appointment is a date which is either the current date or later than that.

if (dateTimePicker1.Value < DateTime.Now)
            toolStripStatusLabel1.Text = "Date Selected is not Proper";
else (dateTimePicker1.Value >= DateTime.Now)
            toolStripStatusLabel1.Text = "Date Selected is " + dateTimePicker.Value;

However, here when I select the Current date it always goes in the if block.When ever I select a date later than the current date it works fine.

Thank you

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You are forgetting about the time portion of the DateTime. You should use this instead:

if (dateTimePicker1.Value < DateTime.Today)
        toolStripStatusLabel1.Text = "Date Selected is not Proper";
else (dateTimePicker1.Value >= DateTime.Today)
        toolStripStatusLabel1.Text = "Date Selected is " + dateTimePicker.Value;

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Because DateTime.Now includes the time of the day, try DateTime.Today this only gets the date.

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because of the DateTime.Now not only returning the data, it also returns the time. so to fix that:

use DateTime.Now.Date instead of DateTime.Now

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DateTime.Now includes both the date and the time, and
'2011-07-29' is always less than '2011-07-29 13:50:00'

Use DateTime.Now.Date, or DateTime.Today for this kind of comparisons.

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The DateTimePicker has a MinimumDate property that will do this checking for you -- have you tried that? Here is the documentation:

http://msdn.microsoft.com/en-us/library/system.windows.forms.datetimepicker.mindate(v=vs.80).aspx

Also, keep in mind that DateTime.Now has hours/minutes/seconds - it's not clear from your example if you want to compare just the date portion of the DateTime...?

Hope this helps,

John

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that is due to the milisecond difference.. you need to check only the date part not the time part... try using a TimeSpan with only date in it this should solve your problem.