How To Calculate Day Between Two Dates
May 20, 2012
I have 2 textboxes, txtStartDate.Text and txtEndDate.Text, user choose date through calendar date picker. Now I want to count the days between the two selected date and save the result in the database field totalDay(type integer), the following is my code: But when I click button and try to save it into database, I receive this error:
The version of SQL Server in use does not support datatype 'time'.
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports System.Threading
Imports System.Globalization
[Code] .....
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Dec 18, 2010
i have this function and i want it 2 calculate the difference between two dates and it is suposed to return the difference in days but it it just not working
[Code]....
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May 11, 2009
how can i calculate number of days between two dates.....for xample between 24/12/2009
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Mar 3, 2011
I have two date values.
Example:
Dim d1 As DateTime = New DateTime(2010, 6,6)
Dim d2 As DateTime = New DateTime(2011, 2,2)
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Jan 11, 2010
I try use datediff function to get month interval between 2 hijri dates but the function deals with the dates as Gregorian Dates so the result is not correct.
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May 2, 2009
i'm making a program to calculate loan using dates, the customer borrows an item on a particular day and returns it on a given day else he would have to pay a certain amount of fine per day, which starts from the date of return if the user returns the item 1 day after the Date of Return, he pays a fine of 50pence if the user returns the item 3 days after the Date of Return, he pays a fine of 25pence per day if the user returns the item 10 days after the Date of Return, he pays a fine of 10pence per day and if the user returns the item 30 days after the Date of Return, he pays a fine of 5pence per day i did something like this, but it's not producing the required answer
Dim returned As Date
Dim due As Double
Dim fine As Double
[Code]....
how do i format a datetime in a textbox?
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Nov 4, 2010
I was working on a project afew months ago and I came back to it and been trying to figure out how come I cant get this to work right.I cam across this site and did not know if this is how to show it but if anyone like to help me out I added a pic. [code]
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May 1, 2009
I need to calculate the difference between two days excluding weekends.
this code counts the difference between two days.
PHP
Public Class Form1
Dim date1 As Date
Dim date2 As Date
[Code]....
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Aug 5, 2009
I am attempting to calculate the number of months between 2 dates in vb 2008. Effectively subtracting a date in the past from the current date and then manipulating it to the number of months between the two.
I have done this in VB 6 previously, but can't seem to do it in vb2008.
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Jan 1, 2012
i want a function to calculate days number between 2 dates
for example :
start date = 2011/11/13
end date = 2012/01/02
i want months to be 30 days always .
thats mean
18 days in November
30 days in December
2 days in January
sum = 50 days
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Aug 26, 2010
Im trying to Write a code that will calculate the dates between two DateTimePickers, and display in a txt box?P
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Oct 12, 2009
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.
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Nov 20, 2011
How do I calculate the difference between two dates to display as a number in days?I have 2 text boxes (txtHStart_Date & txtHEnd_Date) I have used an Ajax Calendar Extender to enter the dates in each of these text boxes.I would like to get the difference between these two dates to show in a seperate text box (txtNoOfDays)
I've seen the timespan function but can seem to get this to work. I'm not to sure how to declare the text boxes as the dates I would the calculation to be made from
Code:
Dim D1 As Date
Dim D2 As Date
Dim ts As New TimeSpan
D1 = txtHStart_Date.Text
D2 = txtHEnd_Date.Text
ts = D2 - D1
But I know this isn't right. I also don't know how to get it to display in the 3rd TextBox.
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Aug 6, 2010
Before I build my own and after looking for quite a while (to no avai) does any one know of a function that will return the dates of a recurrence.
For instance:
- The recurrence might be the first Monday of each month.
- The second week of each month.
So what I want is to pass the recurrence information to the function and it will return in an array all the dates that are applicable.I've looked at some other topics here but none are as comprehensive as what I need.
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Jul 10, 2011
How to get difference between two dates in Year/Month/Week/Day?
How do i calculate exact difference between to date including years, days, moths, weeks. Just like windows calculator does. ?
And represent like this 1 years, 1 months, 1 week, 1 day
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Feb 20, 2010
I have two dates. [code] How to print all dates between these two dates in one listbox, for example: [code]
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Jan 12, 2011
Say the user specifies these two dates....
Start Date: 2010-12-05
End Date: 2011-01-15
If I select December 2010 I should get the folllowing
startdate = 2010-12-05
enddate = 2010-12-31
Select January 2011 then
startdate = 2011-01-01
enddate = 2011-01-15
Should I subtract dates? How can I get the start and enddate for the current month/year based on the overall start and end date.I'm coding in vb.net.
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Oct 2, 2009
I'm using two datetimepicker controls to set the start and end dates for a range of dates I'm searching for.I want to make sure that the start date selected is not greater than the end date. This code works, but it runs the messagebox prompt twice for some reason. I've tried to ignore it from doing this, but it's not working. Can someone tell me what's wrong?
Private Sub dtpStart_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dtpStart.ValueChanged
[Code]...
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Mar 30, 2009
I am trying to calculate the number of years for my calculate age event handler, however i am apparently missing a method or whatnot because im trying to calculate the age , can anyone suggest help on this. I need to subtract years to get my age but when i try the birthdate.Subtract (currentDate) method i get an error about not able to convert from LONG?
So below is what I have.
Private Sub btnCalculateAge_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculateAge.Click
Dim currentDate As Date
Dim BirthDate As Date
Dim Age As Long
[CODE]
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Dec 15, 2009
I have one more problem with MonthControl.And when I bold some dates the program doesn't show bold dates on month calendar.When I move on next or previous month and get back to currently month the program normal displays bold dates. What's the problem?
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Mar 28, 2011
Basically, I have a list of dates in a SQL table with some statistics next to each of them. I want to compare the dates in the table with a certain date I choose. However, my dates in my table are stored as Varchar(50) (and have to be). Apparently I can convert the date in the table into date type but I don't know. Does anyone know how? My current code can be seen below.
[Code]...
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Jun 10, 2011
I have a order item form with a datagrid I want to add dates to different rows i.e. if the 1st row i order a cheese sandwich in that row I am able to insert a date in the correct cell. I want to be able to insert dates in the other rows with different order items. I have this code below and I want to do a loop back for it.
[Code]
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Oct 7, 2011
We would like to compare a date from the db with current date. Here is what I have tried so far: 'Obtain current date Dim curdate As String = Now.ToString("yyyy") 'Now compare curdate with date from db called eventdate. Event date is of dateTime datatype. If drv("eventdate").ToString = "" And Year(drv("eventdate").ToString) = curdate Then
[Code]...
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May 27, 2009
I'm having some trouble. I have an sql statement to update some rows to an Access DB I enter a date like 01/08/2009 (1st Aug 2009) and it saves to my DB as 08/01/2009 (08th Aug 2009 but still 01 Aug if it were mm/dd/yyyy format)
I've got:
Dim
dp As Date = Format(Me.tdate.Text, "dd/MM/yyyy")
Dim
strsql1 As String = "INSERT INTO TANKERS (REF, TDATE, TTOTAL) VALUES ('" & ref & "', #" & tp & "#, " & ttotal.Text & ")"
How do I just get the textbox that says 01/08/2009 to save as that and not 08/01/2009 in my DB.
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Mar 31, 2012
My textbox6 represents the dateprinted of my asssessment form.. i code it like this :
TextBox6.Text = My.Computer.Clock.LocalTime.Date
then in the my SAVE Button coded like this :
Dim cn As OleDbConnection
[code].....
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Feb 28, 2012
I am trying to find the difference between two dates. The first of the two dates can be changed and when it is changed, the difference between the original dates has to be retained. This means that I have to automatically change the second date to have the same difference in days as it did before, but with a new first date. [code]I have the value of the old date1(currDate) and the new date1 value(newDate). I need to get the difference between these, and then add or minus these days from the endDate.
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Aug 15, 2011
i have two DatePickers on form and I want filter between two dates. So when i click search in lsitview display the dates between can anyone tell me how to deal with?
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Mar 1, 2011
how come when I retrieve my data from SQL my date field returns the date along with a time of 12:00:00 AM???? The Sql BD Type is Date and it is a date only in the SqlDB. I'm populating the date into a textbox.
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Jul 20, 2011
I have a sqlce database table that I am entering data every day.
Date No Meter_1 Meter_2 Meter_3
12-05-2010 1 1234 3456 4567
12-05-2010 2 3423 4567 0987
[code]....
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Nov 29, 2011
I have an SQL statement that I am trying to use to connect a vb.net program to an access database.I am using to date/time pickers to provide the dates. I have searched around and the various changes I have made to the statement have not returned any results.For what its worth this query works ok within access:
SELECT * FROM tblcallLog
WHERE startDate Between #" & dspstart.text & "# AND #" & dtpend.text & "#"
here is the entire click event, per @ajax81's request
enter code here
Private Sub btnDateUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDateUpdate.Click
grpT2DateRange.Visible = True
grpT2SingleStaff.Visible = True[code].....
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