I need to calculate the end date given the number of business days (excluding weekend and holidays). All the examples I've seen so far return the number of business days between a start date and an end date.
View 1 RepliesI read that .Net has no function equivalent to Excel's "Workdays" function, which adds a specified number of workdays to a startdate, including an array of holidays. I managed to find a function that adds the number of workdays to the startdate, but I am having no luck telling the function to add a day to the start date for each holiday within the date range. I've pasted a self-contained function below. Every time I compare the result against the Excel result, it's not adding up.
Private Function CalcEndWD_5wkd(StartDate As Date, WD As Integer) As Date
Dim Holidays(23) As Date
Holidays(0) = #10/5/2012#
Holidays(1) = #11/12/2012#
Holidays(2) = #11/21/2012#
[Code] .....
I have a date in the future e.g. 13/10/2008 I need to subtract the current date (today is the 28/09/2010) minus 7 days, so thats 21/09/2010 minus 13/10/2008, which would equal erm, 720 something ? But the current date won't always be 28/09/2010, obviously. I need the code for this. EDIT: When i said future I mean past :)
View 3 RepliesI am writing a program that takes a shipdate and generates a timeline of deadlines for a manufacturing job by working backwards from the shipdate. I hav no problem handling weekends. However, some holidays are giving me problems. For holidays that don't have a set date (Thanksgiving, Labor Day, Memorial Day...) what is the best way to determine the date they fall on? Most of the examples I have seen use an array of dates (either from a file or hard coded) for these holidays. Is there a way to do this tha won't require someon to generate a list every year for these holidays?
View 3 RepliesAnyone knows how to generate a list of all dates of all working days of a specific year?
View 3 Repliesbelow i have a piece of code, i have to calculate the next working day +5 from today but this calculation has to calculate days from monday to friday and exclude weekends(saturday & sunday) and also excluse public holidays.i have tried but what i got is that it calculates 5days without excluding anything.example if a record is taken out monday, the return date must be the next monday but with this code calculates weekends as well it says return date is saturday.
Public Function AddWorkingDays(ByVal DateIn As DateTime, _
ByVal ShiftDate As Integer) As DateTime
' Adds the [ShiftDate] number of working days to DateIn
[code]....
I know the datediff function can give the count of the number of days between two different dates, but how can I get the count of the number of business days - i.e. Monday - Friday - between two dates?
View 2 RepliesHTML
I got 2 dtpDateTimePicker1 and dtpDateTimePicker2 with txtStart.Text and txtend.text there showing the ("en-US") "MM . dd. yyyy" and i get the date difference , works fine but i want to use the German ("de-DE") When i chance the format to dtpDateTimePicker2.CustomFormat = "dd / MM / yyyy". its not calculating the days right
Here's the code i am using
Private Sub Vaction_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' Creates a CultureInfo for German in Germany.
Dim ci As New CultureInfo("de-DE")
Dim dt As DateTime = DateTime.Now
[CODE]...
I have a problem how DateTimePicker to calculate if how many days of an employees work and the DateTimePicker1 will get the Days from another Table time in and time out and will display it in a listview the Day Time IN and TIme out.
View 3 RepliesCurrently I was making a program that will store staff holidays, with a form they can fill out when they take some.The form has Holiday Start and Holiday Finish as 2 Date Fields.Also 7 Check boxes(Monday to Sunday) so they can tick which days they would normally work.The problem i have is then we need to know how many days are being taken, for example.[code]But they have ticked they only work Tuesdays and Thursdays this means they would have only took 2 days holiday.How could i calculate this say if an employee took 1 month?
View 2 RepliesI am trying to calculate the exact amount of time in Years, Months and Days between 2 date values. I'm getting stuck on the day calculation. I've returned the # of months and it's value is 8.77. The .77 needs to be rounded to 8 which should give me the days. I'm not exactly sure what MATH function to use to do this.
View 39 RepliesLets say i had a label with 9/6/2010 11:59:99 that was selected from the month calendar control, is there anyway to determine how many days are from the present days date to the selected end date?
so 9/4 to 9/6 = 2 days
The "2" days is the value im seeking
In VB2005 I am trying to calculate the number of business days between two dates. I must also account for U.S. holidays (New Year's Day, Martin Luther King Day, Memorial Day, Independence Day, Labor Day, Veterans Day, Thanksgiving Day/Friday after, Christmas Day). If a holiday falls on a Saturday, then the prior day (Friday) is assumed to be a holiday. Likewise, if the holiday falls on a Sunday then the following day (Monday) is assumed to be a holiday.
View 4 RepliesI am traying to use the DateTimePicker to extract days diff from a date selected on DateTimePicker1 to a date selected on DateTimePicker2. I have no problem substracting the daydiff in numbers of days. The problem I have is that I need the DateTimePicker to tell me how many of those days are weekends (friday, saturday) and how many are weekdays.
View 2 RepliesThe date is actually a string being read in from a text file in the format
MM/dd/yyyy
how can i add 7 days onto the date?
using an object-binding I have a an object representing "Employee". The employee has an ID-property. The ID of the employee must be unique.
My validation of the entered data is handled in the property set part of the object. In general, I validate criteria belonging to the object to validate only (eg numeric range of the ID, if it's value is not empy, ...). But in this case I need to know all ID's from the other employees. My tried this:
''' <summary>
''' Set EmployeeID
''' </summary>
[Code].....
I am writing an application for my class, wherein I have a mortgage that will give the customer a discount of 1% on their interest if they pay early in the month, or penalize them by 1% if they are after the due date. Right now, I have it working with a checkbox that the user selects. However, I would like to have VB see the current date on the calendar I placed in the application already, and calculate the appropriate amount of interest based on that information. I am using Microsoft 2008 Visual Basic Express Edition on a PC.
View 8 RepliesLet's say I have two date values, date1 and date2. date1 stores the date today, and date2 is the result when I subtract 7 days from the date today. Is there any function in VB that makes me get the exact date of the day after I subtract 7 days from it? (ex: if today is 1/22, the output once I subtract 7 days from the date today would be 1/15)
View 2 RepliesIf I know that today is 236th day of the year, how can I get what date is for 236 + 10 = 246th day of the year?
View 3 RepliesI have a DateTimePicker (dtBBDate) and a textbox(txtDBBDate) object in my form....but what i want when user change the date of dtBBDate my text box should show show the date 10 days minus from that selected date i.e. if user select 10 may text box should show me 1st may?
View 2 RepliesI know about DateDiff and TimeSpan. I am doing a project. I save a date in the registry. Now, I have to test this date against today's date and calculate the differences in minutes, hours, days, months, weeks and years.
I save the date in the registry like this:
Application.UserAppDataRegistry.SetValue("Date", [Date])
I then made a sub to calculate the differences:
Private Sub Calculate()
Try
Dim DateGen As Date
DateGen = CType([Date], Date)
Select Case TimePeriod
[Code] .....
As you can see, based on the difference between these dates ( today's date and the registry date ), a sub gets called and the program continues. Unfortunately, the minutes and hours never calls the RandomAlpha sub. How can I calculate the difference in minutes, hours etc.????
In my project, i need to add days to a given date. but when adding the days it should not have saturdays and sundays.
View 3 RepliesI just wanna know what is the way of tracking the record of employee when i save theyre info in payroll. Like if the employee got paid in these date lets just say he will get paid every 15 days of his work not including sat and sunday. If i save the info the error will say."You have been paid on this day / week" .All i got is save the info but when it comes to checking i cant do it
View 5 RepliesIs there a method or function that I can use to get the number of days between a start date and end date? I tried using Timespan, but I was noyt able to convert the value to a string. What I am doing is I have 3 text boxes. 1 with start date value user will set using a calendar. And another with end date set using a calendar.And the 3rd text box is being used to display that difference between the two dates.
View 3 RepliesI am trying to flag rows in a grid in the following order based on a date column
When 2 or more days old from today
then RED
When 1 day old then YELLOW
When 0 days old then GREEN
When the date is in the future then
BLUE
I have the following which is working fine except for the future dates which are GREEN instead of BLUE.
Dim myDate As DateTime = CType(grdSummaryView.GetRowCellValue(e.RowHandle, "myDate"), DateTime)
Select Case Now.Subtract(myDate).Days
'2 or more days old then RED FLAG
Case Is >= 2
[code]....
I am teaching myself VB while creating a basic application I can use at work. Is there something in VB that will calculate a past and future date from a specific date. For instance, an Election Date falls on November 2, 2011. Once this election date is entered I want the program to calculate the reporting dates. The first report due is due exactly 32 days prior to the election. The 30 day post is due 30 days after the election.
View 2 RepliesI am developing c#.net solution where i have to calculate Start Date based on provided End date and Duration (back days) without weekends.
i.e. End Date: 05/5/2011
Back days: 5
Start Date = (05/5/2011) - 5 days (Excludes weekends)
Start Date = 29/04/2011
I have a datatable that stores information on employees. What i'm trying to do is use it to run a seniority list looping through the table using the current system date. The looping part i have no problem with, and the system date calculation also i know how to do. The problem call the date from the startDate column to do the calculation.
i have tried
dim sDate As date = "startdate"
but i get an error that it cannot be converted to date.
I have to display all days base on a date range. For example my date range is "January 1, 2011" to "February 28, 2011". Now what i want is to display all the dates base on that range, what i meant about "display the dates" is like this.
January 1,2011
January 2,2011
January 3,2011
[Code]....
on my design i have a listbox, datetimePicker and a button. how do i pick a date like for example 14 feb 2010 from the datetimePicker and click the button, then the listbox showing how many days from 1st jan 2010? should be 45days.
View 19 Replies