Calculate Time When Using DateTimePicker?
Apr 8, 2011
I'm new to VB and I'm so confused when using DateTimePicker. To be more specific, I have 2 inputs and two of them are Booking Start Time (BST) & Booking End Time (BET) (using DateTimePicker and set them as Time ). I should allow users to choose any time (including Minutes and Seconds)for BST (just need before than now) and BET. BET must be greater than BST at least ONE minute, but still also ensure it less than now (else it should appear a message box to tell specific problem). Then,system will calculate how long it is. [code]....
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Feb 27, 2012
Im a beginner at visual basic. I did some codes refering to a form in which I need to calculate the differences between my my date of birth to another date. I did a statement which gives me the difference between those in the format of years, but I need to know how I can put the months and days example if my birthdate is 11/26/1991 and I want to calculte how many years, month and days has transcurred until today it would be like 20 years 3 months and 11 days.
[Code]...
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Jun 11, 2011
need simple code vb.net code tht uses issue date and return date to calculate fine but doesnt use datetimepicker tool..
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May 12, 2010
I have a form with the DateTimePicker control on it. When I select a date it gives a value like "date time" (Eg.: 5/12/2010 12:20:35 PM). But here the time returned is current time. What I need is for the date chosen from the picker automatically set the time to 00:00:00 instead of the time when the date was picked.
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May 12, 2010
i have a form with the DateTimePicker control on it. When I select a date it gives a value like "date time" (Eg.: 5/12/2010 12:20:35 PM). But here the time returned is current time. What I need is for the date chosen from the picker automatically set the time to 00:00:00 instead of the time when the date was picked.
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Jun 18, 2012
I am trying to calculate the time difference between two points in time. I am using: Environment.TickCount.I set a long variable to the Environment.TickCount and then a second long variable to Environment.TickCount at a later point in time. I then subtract the second long variable from the first long variable, yet an incorrect difference is returned.
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Feb 27, 2011
I have a Date Time Picker control and need to get it to display as H:mm in a text box as a declaration so that I can transfer to a database, I do not want the seconds. I have tried using :ToString("H:mm") but it just zero's off the seconds ie..."13:45:00".
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Jan 27, 2012
I'm having a little problem trying to figure out how to get only the time from a datetimepicker.I've set up a datetimepicker to only allow user selection of time by setting Format to Time and ShowUpDown to True.However, when I store the value of the datetimepicker to a variable, it returns a date as well.[code]However, this seems like a really inelegant solution and I can't figure out how to get an AM/PM behind that.I feel like I'm missing some really simple solution that I'm just not seeing! There HAS to be a way to get just the time!
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Jun 21, 2010
I have 2 datetimepickers on my form, and I use them to pass parameters to my sql queries for reporting purposes. You would use them to pick a date range and display clock in times for employees. Anyway, I need an option so users can see information from a single day(24 hour timespan) My first Idea was to let the user change the date on the first datetimepicker then changing the time to 12:00 AM then the second datetimepicker to 11:59 PM. I want to be able to do this programmatically, but I couldnt figure out how to change the time.
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Aug 7, 2011
im trying to compare time value of to two datetimepickers, i tried to use dt_Start.Value.TimeOfDay > dt_End.Value.TimeOfDay but it doesn't work. btw, i trying to make a scheduler. here are some of my codes:
Dim strUpdate As String
If dt_Start.Value.Date > dt_End.Value.Date Then
MsgBox("End date is earlier than Start Date. Please check.", vbExclamation, "Error!")
ElseIf dt_Start.Value.Date < Today.Date Then
[Code]...
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Jan 6, 2010
I sure this has been asked more then once... New to vb.net and I have been experimenting with a datetimepicker and how it looks at and deals with time. What I am trying to do is to add up my time (not worried about the date at all). I have it figured out and can get it to work so long as I do not go over 24 hours... and that is where my issue comes into play.
How do I display my total time in hours once it has gotten over 24 hours ( I do not want days.. just hours) for instance, a 40 hour work week, not 1 day and 16 hours.
[Code]...
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Oct 9, 2011
How do i set only date will be inserted into the database using Datetimepicker??
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Feb 11, 2011
I have a DateTimePicker. Its Custom Format "hh:mm tt". Now if someone changed the value in DateTimePicker e.g 12:33 AM, I need move the date to 12:35 AM.On event LostFocus I'm able to retrieve all the information:
DateTimePicker.Value().Hour
DateTimePicker.Value().Min
and manipulate the values, whether to increase or decrease.Now, how do I assinged back the modified values to DateTimePicker
DateTimePicker.Value() = ??????
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Jun 5, 2011
i wish to concatenate date and time from 2 different datetimepicker after concatenated I want it to be save in sql database format which is yyyy-MM-dd HH:mm:ss
I'm doing half way and my query is like below.
Dim insertCmd As New SqlCommand(Sqlstr, connection)
insertCmd.Parameters.Add("@School_Subject", Data.SqlDbType.NVarChar).Value = txtSchoolSubject.Text
[Code].....
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May 10, 2010
Can anyone help me with the control to enter time as in the system's format .
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Jun 23, 2010
I have a datetimepicker on a form. It is not bound to a table field. When I open the form, I click on the arrow on the right of this control, the calender picker appears, I click on a date, and then I have to hit enter for the picker to close and the date to transfer to the control.After that, I can click on the arrow, click on another date, and the picker closes immediately and the date value goes into the control. Why do I have to hit enter the first time? I would like to be able to transfer the selected date to the screen the first time with just 1 click and without hitting enter.
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Dec 27, 2011
I want to display ONLY the time from the datetimepicker control in a textbox. It needs to stay in time format to be used in a timespan for arithmetic reasons.
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Oct 9, 2011
how can i remove the time when i inserted into the database using datetimepicker??.
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May 12, 2012
I have a DateTimePicker to display time (for example) as 05:00:00 AM or something like 07:00:00 PM. When I save my form's data, I'd like to save the time as 05:00:00 or 07:00:00, dropping the AM/PM extensions.
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Jul 9, 2011
I make a project car rentals but I have trouble counting time, to take the penalty when you return the car late,[code]but the results do not correspond..I want the result = 2 hours 10 minutes.
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Apr 15, 2012
I have a datetimepicker but the custom format is set to HH:mm tt so that I can get eg 11:20 AM
this value I have stored in database with the help of Label4.Text = DateTimePicker3.Value.ToShortTimeString.
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Dec 31, 2011
Can someone please help me make this work? I want to do in vb.net calculate time between to date like this:
startdate: 2011/12/30
enddate: 2011/12/31
Calculate: ? hour ? minute ? secends
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Aug 12, 2010
example
textbox1.text has a value of 08:00
textbox2.text has a value of 16:00
[code].....
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Nov 24, 2011
I want to do 2 things with date & time calculation : First : I have a LastSave (dateTime Format). I have two controls (NumericUpDown / Format Decimal), one for Hours, the other for Minutes.I want to start another save at a specific time this day at : Today's date + Hours + Minutes.What i've done isn't work, cause i can't convert to DateTime my setting
DateDernireSauvegarde, which has a STRING FORMAT.
Private Sub TimerSauvegarde_Tick(sender As System.Object, _
e As System.EventArgs) Handles TimerSauvegarde.Tick
[code].....
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May 4, 2009
I have a value which is milliseconds, I did some experimenting, and with my very limited math skill I came up with this:
Dim val = _Memory.ReadValueFromAddress(hProcess, timer_addr, 4)
Dim seconds = val / 60 Mod 60
Dim minutes = val / 60 / 60
I don't even know what will happen when the hour counts down,
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Jan 6, 2012
I have many time result in my hand... like
10.10.23 (hours,minute,seconds)
01.14.15
How can i calculate total time?
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Jun 10, 2010
write a code that can calculate the difference between the datetime a article has been published and datetime of now.like this example :this article has been published 4 minutes ago...this article has been published about 2 days ago...
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Jun 12, 2011
I want to save datetimepicker value of date and time in two separate text files. Currently, when I select a date from datetimepicker and save it in a text file it saves both date and time as below:
5/11/2011 8:25:06 PM What I would like to happen is as below: Datefile.txt saves 5/11/2011 Timefile.txt saves 8:25:06 PM Alternative solution that can work for me would be, if the time (only the TIME) can be modified after saving as below: saved datetime into text file is 5/11/2011 8:25:06 PM
How can I modify the time only to say 12:00:00 PM. By doing so I would like to keep time as 12:00:00 but date can be changed by the user using the datetime picker.
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Jan 31, 2011
I want to calculate the time taken by a method to execute.[code]...
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May 27, 2010
I am trying to calculate a total cost from an elapsed time. Dependant on how long the time is, this will calculate the total cost. It has to be 3 to every hour. The elapsed time is displayed in label6 in "hh:MM:ss" format and the total cost needs to be displayed in label8.
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