VS 2005 Subtract One Time From Another To Get The Result In Hour And Minutes?
May 6, 2009
in one textbox i have 10:00 PM and in another textbox i have 12:00 PM....i want to subtract 10:00 PM from 12:00 PM and get result ie 2 hours...how can i perform that?
DateTime.TryParse(TextBox1.Text, d1)
DateTime.TryParse(TextBox2.Text, d2)
the code is to convert the text into time.
in one textbox i have 10:00 PM and in another textbox i have 12:00 PM....i want to subtract 10:00 PM from 12:00 PM and get result ie 2 hours...how can i perform that?
Is it possible to configure the System.Timer to run say 30 minutes after every hour? I have searched google to figure this out but all it shows is how to set it where it goes off once an hour, if I launched the app at 2:45 then it would go off again at 3:45. I can forsee issues down the line with this approach where if it went off at a specified time it would not have that issue.
Normally i would use Scheduled Task for this however it doesn't give you the option for hourly just daily, perhaps i'm wrong about this.
The following code takes a timeframe in minutes since midnight and creates an array with minutes pr hour. But, it's slow. Any better suggestions out there? (no, changing language is not an option :-) )
Const clDeparture As Long = 123 Const clArrival As Long = 233 Dim lHour As Long Dim lMinute As Long Dim alHour(25) As Long
I use a masked textbox, and I would control the input, the problem is, I use 1 textbox and the control should on the first 2 digits with a maximum of 24 and the last 2 digits with a maximum of 60. Is there a possibility to program this?
So let's say I have 1400, I want to convert it into 2:00PM I tried the following:Dim convertedTime As String = DateTime.ParseExact(theTime,"HHmm", Nothing)
And it would give me this: 6/12/2012 02:00:00 PM
I do not want the date part, neither do I need the seconds. All I need is 2:00PM
can i do this in VB.NEt example i wanna subtract the difference from 8:00 AM TO 12:00 pm how can i do this what namespace do i need? how can i add time? how can i add two dates
I'm Currently working with a payroll system with daily time record.. I'm having troubles with their time records, what i did is this, i created 6 textboxes on the form the 1st textbox is for the AM IN 2nd is for the Lunch OUT the 3rd Is for the total hours worked for the half day, and the same for the 4th to 6th textboxes. I actually get the difference of 2nd and 1st textboxes and show the result at 3rd textbox and same for the 4th-6th textboxes using this code that I also get in this site
Dim TimeA As Date Dim TimeB As Date Dim hh As Integer
[Code].....
but i really didn't understand it so right now I don't know how to add the value of textbox3 and textbox6 so I could get the total hours worked of the employee..
I am encountering the following issue So i have a device that sends stuff at the serial port, i then parse it and put it into an array of bytes like that:
Dim HCI_Command_Rcvd_Byte() As Byte All good till here What i wanna do is make an array and put this result every time the serial port gives me a new result, for example:
[Code]...
Basically what i wanna do is let the port parse the messages, fill in the array with the result at an empty spot in this array and then i will have a separate thread that will look in into this array in each non empty space and after it looks into the non empty space it will use or discard the info and also mark this space as empty (after it checked)
I have 2 datetimepickers. I want one to display the current time and the other to display the time one hour ago: So far I can getb them both to display the current time:
Code: Dim TimeInterval As Integer = 60 Private Sub SustomizeGraph_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load TimeTo_dtp.CustomFormat = "HH:00"
I have a DateTimePicker,whose dateTimePicker1.Format = Time dateTimePicker1.ShowUpDown = True But now i want only the hour part from the Date Time Picker as i have to compare the hours with some logic in my Database.
I wrote a VB.NET Windows Service, which works fine. I have only one issue with it. I want the service to execute on the half hour and top of the hour marks (e.g. 9:00, 9:30, 10:00, 10:30, 11:00, etc etc etc). I am using the following code:
Protected Overrides Sub OnStart(ByVal args() As String) ' Add code here to start your service. This method should set things ' in motion so your service can do its work.
[CODE]...
This code works, however, if the service starts at, say, 10:15, then it executes at 10:15, 10:45, 11:15, 11:45. How do I make it so it always executes on the 30 minute and top of the hour marks?
i need to add a increment hour and increment min button, here is the code :my ? is this how do i make the two new buttons work like code wise ?? this is attempt like 5 everytime ive played with the code and added buttons ive crashed the program?
Public Class TimeTest Dim time As New Time() ' construct Time with zero arguments ' invoked when user clicks the Add 1 to Second button Private Sub addSecondButton_Click(ByVal sender As System.Object,
What is the best way to run a process say every 30 minutes? Or at 0900?
I have an app which does quite a few things, and want to add something that will run every 30 minutes. Don't want to use windows scheduler as i want to keep it all in the one app.
Is the only way to run a thread.sleep for 1800000? If so, can i run 2 background workers on the 1 app?
How can I extract the interval time into minutes and second. I can set the interval where 1000 is a second. I don't know how to capture and display in a textbox seconds or minutes counting down or up.
In Microsoft Access I use: Hours(time) minute(time) function to get current time hour and minute. I then use loop to add to the minutes until it ends in a 5 or 0 to round it up to the next 5 minutes. e.g. 13:43 rounded up to 13:45 I use IF statement to make sure the minute does not exceed 60 to start the hour. I want to use that time to add hours or minutes to easier e.g. add 15minutes, add 1 hour ect.
have another problem regarding with time again. After getting a user input time in "H:mm", in what way can I add like an additional 15 minutes to it? Something like this:
1 - User inputs the time in textbox 2 - Adding 15 mins(which is in an array) to the time
I am writing a program and have run into an issue. The program requires a conversion of time (e.g. hours,minutes,seconds) to a hexadecimal value of no more than 4 bytes (e.g. FFFF). I have no idea how this is done. Can anyone point me to a tutorial or give a quick explanation. Sample code would be great as well.
I have a problem in detecting the 30 minutes interval in time scheduling like for example i have a combobox(starting_time) and combobox2(endtime) and I select there 9:30-10:00 it has 30 minutes I want to show a message box that I should be 1 hour.
I am adding the timespan and displaying it in a text box...the value can be more than 24 hrs that is the reason i m using the following code..[code]Now i want to add the value of wtothrs0.Text and wtothrs1.Text....but in the form of "hrs:min".
This code will no longer work in VB.net and I cannot figure out how to do this with 2005 VS. The string originally is something like "20100310142715" and should be broken down into year, month, day, hour, minute, second.