I 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.
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I've been given two dates that takes their values from two respective dtpickers.I've got to calculate the exact amount of days, months and years between them.[code]The problem is that this function gives me ALL the amount of respective days, months and years passed, but I need to split them up in the correct way. Ex, between 28/2/98 and 13/1/2007 the result should be 15 days, 10 months and 8 years. And above all, the result is that the function indicates one month more (or one year more) with only one day (or month) passed between the two dates!
View 10 RepliesI have made a new form on vb 2010. I need a small box which updates itself automatically to show the amount of years,months,days,hours,minutes and seconds from the 25/6/09. How would i do this in visual basic 2010?
View 3 Repliesconvert days to months and days?
Normal 0
false
false
falseEN-US
[Code]...
Consider the following 2 scenarios: Scenario 1). Today is May 1st 2012, and Scenario 2). Today is September 1st 2012.Now, consider that we write on our webpage the following about a comment someone has left: "This comment was written 3 months and 12 days ago". The amount of days in both these scenarios will ALWAYS be different even though the statement is exactly the same. In Scenario 1, "3 months and 12 days" would equal 102 days. However, in Scenario 2, "3 months and 12 days" would be 104 days!Now, to corner in on my point, lets use a different example and say that someone left a comment on our site on Jan 30th 2013, and today is March 10th 2013. Our real TimeSpan object needs to know this relative date, and can figure out the following:
That there is 10 days in March,That there is 1 day in Jan (counting from 30th to 31st).That the month Feb is one month regardless of how many days there are in it (even though it's 28 days).So, it would mean 10 days + 1 day + 1 month total, translating to This comment was posted 1 Month and 11 Days ago.Now, if you used the MS style TimeSpan object (or any TimeSpan object in any language), it would give you the number of days from 30th Jan to 10 March (39 days), and because the TimeSpan object doesn't store relative date (the base/initial date we subtracted to get the TimeSpan), if you asked it how many months and days it has been, it will assume there is 30 days in one month, or even worst, the average which is greater than 30 days, and return the rest in days, so to get to 39 days, it will tell you it's been 1 Month and 9 Days and you will get the This comment was posted 1 Month and 9 Days ago message. Remember, both these scenarios have the same start date and same current/end date, yes the Microsoft TimeSpan object, by not allowing us to tell it the month of Feb 2013 should be be considered, has given us a completely different TimeSpan, off why a whole 2 days. It has, in effect, lied to us.
The problem is, people will believe this, and who knows what perceptions they may have, how their perceptions of the past may change and the decisions & life choices they may make when trying to reconstruct events within the past inside their own minds, while never noticing or understanding the drawback and inherent failure of representing time that is so pervasive everywhere today. They will not understand that programming languages don't realize (or care) that last month had 31 days in it, as oppposed to 30, 29 or 28 - or visa versa, and that this adds up when you increase the TimeSpan.
This is the problem at the heart of this post. I understand that most people will not care about this difference (but be sure that some of us do, and cannot have this on our backs), and if this doesn't bother you, thats ok. I wish it didn't bother me, I would have saved myself some time, stress and disappointment. If this is not a bother, you can use the function for the efficient textual display of relative time (customizable to 1 to 6 nodes from seconds to years), instead of using it for the usually negligible accuracy it provides.
To my disappointment I noticed that there is no real timespan object, if you get a timespan, and do a .years or .months you'll get nothing, you'll only get .days and lower because a timeSpan object doesn't carry anything to tell it which month or year the timeSpan was created on. Therefore it'll never really know how many months it's been since days in each month vary over a year and even further over a leap year.I figured there'd be a ...
timeSpan.GetActualNumberOf[Months/Days/Hours/etc] (base date must be provided of course)
... type method on this datatype, but there wasn't.All you'd really have to do is create another property on the timeSpan object to give it a base date on which the difference was calculated, then the above lovely string would be calculable pretty easily, and a .year & .month would exist!
I want to get the total years and months in a number eg. 25 should give me 2 years 1 month. and 11 should give me 0 years 11 months and maybe 12 should be 1 year 0 months,i have this code but it does work for me as i want it seems the loop i am using goes only once.
Dim Month As Double = 25
Dim LeftMonth As Double
Dim Count As Integer = 0
[Code].....
I have two dates, a creation date and an expiry date. I want to find out how many years and months (not days unless it is only days) between them.
I've got two dates:
Dim start_time = "12.5.2011"
Dim end_time = "15.11.2014"
I want it to say (3 Years, 6 Months) etc
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
I have the following beast of an SQL (DB2) statement...
[Code]...
Taking the input date of Wednesday, 2012-03-28, this would return Wednesday, 2006-03-29. Notice that it matched the Thursdays. It matches the corresponding calendar day of previous years. Is there a more elegant way of accomplishing the same goal in C# or VB.NET? I've tried translating this query into VB.NET, but haven't been able to do so perfectly and it just looks horrible and unmaintainable.
I have the following VB.NET Code:
Dim Date1 As New DateTime(2010,5,6)
Dim Date2 As New DateTime(2009,10,12)
Dim NumOfMonths = 0 ' This is where I am stumped
What I am trying to do is find out how many months are between the 2 dates.
Let'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 Repliesis it possible to change language for days and months in datatimepicker? if no, then is it possible to display only numbers instead of names of the month?
View 13 RepliesI 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 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 need this for 2 different changes.ON one form i got a week calendar, the other a month calendar.Was hoping to add 2 buttons previous & next.To scroll back in time x days, or x days forward.And similar for the months, but instead of days months.Can anybody give me a exaple or a method how to get this to work?Figured it could be done with a loop, but not sure anymore.
View 2 RepliesI 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 now want to retrieve only year from my table(summary),field name(dates). So i am facing the problem on how to display the year in combo Box. my sql statement as below.
[code]...
Is there anyway to get the exact time. I know 'Now' Commands get the system time but the system time is not exact to real time, is there way of returning a value from a webpage, even using a webbrowser.
View 5 Repliesi have a piece of code that i wanna know that in how many miliseconds it would be run.
Public Sub TurnLeft(ByVal speed As Single)
Dim timer As Single
If Not IsNothing(Me._DriveActor) Then
[code].....
I am developing an application that is very very time critical. I want to put a log writer in the code so that i can track the events and find out where the application is wasting the time.But the problem is that vb.net tells the time only at a interval of 15.25 milliseconds what to do. although msdn documentation says that we can get the time in millisecond.
To understand my problem better pls go through the following code. this code is written on a click event of a button and it writes down the time in a log file. The problem is that it writes time like 16,16,16 and after some time when the dx value reaches to say 5000 it jumps to 31 and then to 46 and so on.
dx = 1
While dx <= 100000
dx = dx + 1
SRLog1.WriteLine("dx vALUE > " & CStr(dx) & " Ticks -> " + CStr(Now.Millisecond))
End While
Suppose $800 is deposited into a savings account earning 4% interest compounded annually, and $100 is added to the account at the end of each year. Calculate the amount of money in the account at the end of 10 years. Determine a formula for computing the balance at the end of one year based on the balance at the beginning of the year.Allow the user to input the beginning balance and the amount to be contributed at the end of each year. You must a loop in this program. [code] I cannot figure out how to make the previous years balance become the next years and so forth.
View 6 RepliesI have a data bound DataGridView. The final column of this is for the last change date to see how new the data is. I also have a hidden label on my form that has the current system time and date. I am wondering how do I take the date that is on the label and insert it into the column for the last change date on the datagridview when ever a new row is added. This way it automates the process of putting the exact time that row was added.
View 15 RepliesIn my vb.net code is there a way to convert it from hh:mm:ss to days format. Like if input is "05:06:07" then output should be "0.212581018518519". Basically it converts the total seconds to days.
if .net provides me with a build-in method to achieve the same.
I have one text box that contains a value for the "Start Time" and another text box that contains a value for the "End Time."Both of the values are expressed in a format for military time (i.e. 1200, 1300, 1430, etc.).When the "End Time" text box loses focus, I would like the "Elasped Time" (expressed in minutes) to appear in a third text box.Seems easy enough...right?Well the problem I'm having is since the first two numbers in military time are base 24 and the last two numbers are base 60, a standard calculation subtracting the "End Time" from the "Start Time" does not yield an accurate result.
View 3 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.????
I have a button which on click will save the data into the database and after successful entry of data a messagebox will be displayed.Now,all i want to do is I want to calculate the time of how long does it take between clicking the button and displaying the messagebox.
View 19 RepliesWith Vb.Net, How to get dates older than 3 months and less than 6 months ?
View 3 RepliesI created a software which download files from the web. I also added a progress bar which shows the download progress. Every thing works fine.
Now:
- How can I add a label that will calculate the time left for the file to be downloaded and another label that will tell the speed of the download?
- Would it also be possible to add a label which calculates the size of the file that is begin downloaded?
Here is what I declared:
Imports System.Net
Public Class Form1
Dim WithEvents Download As New WebClient
Dim WithEvents Download1 As New WebClient
Friend WithEvents Label1 As System.Windows.Forms.Label
Here is what I have under the download button:
Download.DownloadFileAsync(New Uri("URL" & ComboBox1.Text & ".rar"), Textbox1.Text & "" & ComboBox1.Text & ".rar")
And here is what I have under Download_DownloadProgressChanged:
ProgressBar1.Value = e.ProgressPercentage
Label1.Text = e.ProgressPercentage & "%"
If ProgressBar1.Value = 100 Then
MsgBox("Download Completed!", vbInformation, "Info")
Label1.Text = "0%"
I have a oracle database. I use the OracleDataAdapter(Oracle.DataAccess.dll) for select, update, insert, delete operations. I don't set any (table) locks on my own(I only start a transaction). I have a oracle table named "test" with the entry "test1".
Now my question: Can Person A read the entry "test1" while Person B is updating/deleting the entry at the exact same time? What happens in the worst case? An old match/empty match or can it cause any kind of exception/error(e.g. "TableLocked-Exception")?
