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VB.NET DateTimePIcker Time ONLY

Posted on 2014-07-24
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Last Modified: 2014-07-24
I am trying to use only the time portion of a DateTimePicker.
I want to populate multiple DateTimePickers with different times

From what I've seen, I have to set a date as well as a time, even though I have the format set to Time.

DateTimePicker0.Value = "7/24/2014 9:01 AM"

Is there a way to set only the time?
something like:
DateTimePicker0.Value = "9:01 AM"

thanks,
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Question by:Adam_930
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LVL 15

Expert Comment

by:Ess Kay
ID: 40216967
A snippet out of the mdsn

'The following code sample shows how to create a DateTimePicker that enables users to choose a time only.'

timePicker = new DateTimePicker();
timePicker.Format = DateTimePickerFormat.Time;
timePicker.ShowUpDown = true;

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http://msdn.microsoft.com/en-us/library/ms229631.aspx
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LVL 64

Expert Comment

by:Fernando Soto
ID: 40216999
Please see the following Microsoft documentation for using a DateTimePicker for Time only, How to: Display Time with the DateTimePicker Control.
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LVL 15

Expert Comment

by:Ess Kay
ID: 40217003
If you want to set the time, avoid null values by using todays date

DateTimePicker1.Value = new DateTime( DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 5, 30, 0 )

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If you want to preserve the date but only change the time use this
Dim Hour = 1
Dim Minute = 30
Dim Second = 5
DateTimePicker1.Value = new DateTime(DateTimePicker1.Value.Year, DateTimePicker1.Value.Month, DateTimePicker1.Value.Day, Hour, Minute, Second )

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Author Comment

by:Adam_930
ID: 40217006
esskayb2b:
I have done what you have suggested, but I want to populate the value of the time only from within code

DateTimePicker0.Value = "7/24/2014 7:01 AM"

Do I have to put in a date (even if fictitious) and then strip it back out when I execute my application?

What I was hoping to do is something like:  DateTimePicker0.Value = "7:01 AM" because I am only dealing with time
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Author Comment

by:Adam_930
ID: 40217031
I am trying to understand how the .NET DateTimePIcker functions,, eventually the information for the DateTimePIcker will get it's information from a file that read when the user brings up the screen
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LVL 64

Assisted Solution

by:Fernando Soto
Fernando Soto earned 400 total points
ID: 40217033
The backing store for DateTimePicker0.Value is a DateTime object and therefore can not be set with just a Time element.
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Author Comment

by:Adam_930
ID: 40217040
Is there a better control to use than DateTimePIcker if I am dealing with just time?
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LVL 15

Expert Comment

by:Ess Kay
ID: 40217046
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LVL 15

Accepted Solution

by:
Ess Kay earned 600 total points
ID: 40217061
A workaround would be to have the datestring somewhere, and just add that plus time

IE
dim foobar = "7/24/2014 "
DateTimePicker0.Value = foobar & "7:01 AM"
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LVL 64

Expert Comment

by:Fernando Soto
ID: 40217086
Or you could roll your own by inheriting from DateTimePicker and adding code to behave the way you need it to.
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