Calculate Differences From One Date To Another With Datetimepicker?
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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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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Oct 6, 2009
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:
Code:
Application.UserAppDataRegistry.SetValue("Date", [Date])
I then made a sub to calculate the differences:
[code].....
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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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Oct 6, 2009
I 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.????
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Aug 2, 2011
I have a vendor application which is precompiled. I want to add a template column into the aspx page, however I'm having some difficulty.This works for me fine as "Available" is a column bound to the asp DataGrid:
<asp:TemplateColumn HeaderText="test">
<ItemTemplate>
<asp:Label ID="Label2" Text='<% #DataBinder.Eval(Container.DataItem, "Available") %>'
[code].....
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Jun 25, 2009
there, im doing a leave management system with vb 2005..and here's my problem -how do i 'find' the expiry date?? eg: from the datetimepicker in my form, if the date i select is 1st january 2009.....how do i type the code to find the expiry date 1 year later (which is 1st january 2010) and display the date in a textbox in my form???
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Mar 4, 2009
I 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.
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Aug 28, 2011
Is there a query that can use to sum up data from date until another date? how to do it in VB.NET.
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Jul 1, 2010
I have the following
[Code]...
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Apr 17, 2012
I was wondering what was the proper way to create a If statement for if the datetimepicker date is greater than 2 weeks from the current date.
I was thinking something along the lines of
If (datetimepicker.value > DateTimeInterval.Day(14))
but I am not sure the correct way.
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Aug 9, 2011
I want to get the date value from datetime.now till the selected value from datetimepicker. Ex.
date Today is 08/09/2011
selected date from datetimepicker is 02/08/2012
I want to show the dates between the 2 dates mentioned. For example I want to show the value of
09/09/2011-Firstmonth
10/09/2011-SecondMonth
11/09/2011-thirdMonth
12/09/2011-FourthMonth
01/09/2012-FifthMonth
Until it reached the selected value from datetimpicker.
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Apr 18, 2010
I have a date time picker where the dates available to be selected on it is affected by the choice made in a combo box above it. If the user selects "Express Air" in the combo box for example, the minimum date in the date time picker must be either Today or Tomorrow. Nothing before, nothing after. How do I go about this? I tried:
Private Sub DateTimeExpressAir()
If cmbShipmentMethod.Text = "Express Air" Then
DateTimePicker1.MinDate = DateTime.Today
End If
End Sub
If also possible how do I set the MAX date to like, tomorrow, or 6 days after today, etc? DateTimePicker1.MaxDate = ??
But no success. I am using Visual Basic 2008.
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Aug 18, 2010
I am trying to take a date from a DateTimePicker, add so many days to it, then display the new date.
So far i have got:
Private Sub CalculateDateDue()
Dim RaisedDate As DateTime
Dim terms As Double
[code]....
But it doesn't seem to perform the .AddDays function, but passes over it without any problems.
terms does convert to the right number, so i know thats not an issue.
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Aug 4, 2010
i want to add datatable to each date of a datetimepicker is this possible?
so when i select a date on datetimepicker a datatable get displayed
i've tried For Each but i don't know the code
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Jun 21, 2010
My problem is when i select the end day of the month it gives me a negative days[code]...
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Jun 6, 2011
The problem I'm facing now is when I set my DateTimePicker format yyyy-MM-dd, when I put a date in that column, they will auto generate the time now.For example, i entered 2011-03-30 but they will save in database 2011-03-30 10:56:54 AM.Question here is:How can I do where i want it to be "2011-03-30 00:00:00" ?
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Jul 30, 2009
My app uses about 14 date as the user progresses through and the dates are used to make a number of calculations. In the process of debug I set the dates in Properties so I would not have to enter them each time with all the other inputs to test the math and out put values.
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Oct 7, 2011
i want to check the value date of the date time picker and add 5 days to the current date it is displaying
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Feb 15, 2010
Actually, I want to be able to select a date (example, 2/10/2010-) and it add it to the textbox, then select another date(example,3/28/2010) from the same datetimepicker and it appends it to the textbox.(It will be like this on the final click, 2/10/2010-3/28/2010 and save it to the Access database).
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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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Jun 21, 2010
I need to convert date format used from datetimepicker as(dd/mm/yyyy) to (yyyy-mm-dd)
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Feb 27, 2009
When a user selects the datetimepicker, or types in the date in the text box, the calendar then highlights that date (for instance 02/02/2009) and puts the date in the text box.
If the user deletes the date from the textbox and then selects the drop down arrow again to show the calendar, the 02/02/2009 date is still highlighted. The user can select a different date or type in a date (including the highlighted one) - no problem. But if they wanted to select the same date they deleted, they cannot. No error message, it just leaves the text box blank.
Yes, it's very rare that that happens and they can highlight a different date, then go back in and highlight the 02/02/2009 date in a matter of two clicks but they want it fixed .
Not sure how I go about getting the calendar to clear the highlighted date once it has been deleted from the textbox?
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Mar 25, 2011
My datetimepicker hangs up at midnight and does not roll over to a new date.
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Jun 6, 2011
How to insert record date in my access db. I am using hdate as my field and his data type is short date
Here is my code
cmd.CommandText = "INSERT INTO hold ([hdate], des) VALUES (#" & myDate & "#, '" & TextBox1.Text & "')" cmd.CommandText = "INSERT INTO hold ([hdate], des) VALUES (#" & datetimepicker1.text & "#, '" & TextBox1.Text & "')" cmd.CommandText = "INSERT INTO hold ([hdate], des) VALUES (#" & DateTimePicker1.Value.Date.ToShortDateString & "#, '" & TextBox1.Text & "')"
But none of them insert on the table. The record will view on the datagrid but not on the physical table.
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Aug 15, 2011
get the previous date in datetimepicker.text?9/1/2011 i want to get the previous date 8/31/2011.
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Aug 26, 2010
I Want To Insert Date Into Sql 2005 But Without Using Datetimepicker In Vb Net 2005 forms every time i do it by using textbox got an erro converting iwant to use textbox like we use it in access with input mask is that avilable
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Aug 17, 2011
How to use a DateTimePicker to query a database table. Basically, when a day is chosen on the DateTimePicker, I want all the database entries for that day to be populated on Datagridview. My Datetimepicker name is datetimepicker1. The datagridview name is dgv. The database table is called QCAuditing and the row in the database, that has timedate, which I want to use for query is called date. I was wondering if someone can point me to the right direction here.
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Mar 18, 2010
I am querying a date from my Access 2007 database in the format: MM/DD/YYYY It's then saved as a string
Depending on the month and day, it might be 1 or 2 characters. To set the DateTimePicker, it takes it as this format: DateTimePicker.Value = New DateTime(YYYY, MM, DD)
How can I switch around the characters in my string so that it can satisfy the format the DateTimePicker wants? I was thinking about some kind of reader that "consumes" characters until it reaches a delimiter ("/") and then does something with it. I remember doing that in JAVA but not in VB.NET
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