Web Forms :: Adding And Subtracting Dates?
Aug 16, 2010
I have a situation where I need to take the current date and subtract 5 days from it for a variable. I've tried this:
[Code]....
However it does not work as expected and there is no remove days method. Is there a different way to accomplish this?
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Similar Messages:
Aug 12, 2010
Is it possible to add values in textboxes as well as subtract values? Scenario:
txtbox1 value = 3
txtbox2 value = 2
txtbox3 value = txtbox - txtbox2
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Oct 13, 2010
I have two text boxes called starttime and endtime which are datetime sqldbtypes that I want to subtract the value to show in a duration label. I know that you can do a subtraction with datediff in t-sql to find the time difference, and I'm wondering if that's the best way to approach this. Here is the code from my default.aspx.vb page:
[Code]....
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Oct 6, 2010
I saw this thread but it doesnt quite cover what I'm looking for:[URL]I have two text boxes that will have a start time and an end time and what I want to do is to calculate the "duration" of the time between them while also accounting if a time starts before midnight on one day and ends on the next day (or any other day for that matter.) Then those values will be put into a SQL server database stating just the "duration."
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Oct 13, 2010
I have two text boxes starttimeInput and endtimeInput that have regularexpression validators to only accept input of time variables (11:00 am, 12:15 pm, etc) and then a durationLabel where I want to calculate between the start time and end time and present it to the user as minutes. I first convert the text to date and so I think I did that with the following:
[code].....
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Jan 16, 2010
May i add the Dates from Database to calendar Control using the SelectedDate() method
because if iam using the SelectedDates() then if there is only one record come from database then nothing is displaying inside gridview and if there is more then one dates come from database then it is working suggest me the way to deal it .
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Aug 25, 2010
I have 3 textboxes. In the first two, times will be entered (an IN and OUT time) and the third textbox needs to subtract the two times from txtbox1 and txtbox2. Somehow I need to validate the times are entered correctly into txtbox1 and txtbox2. Right now, if the first txtbox is blank, it brings in the system time in the following format on the code behind:
[Code]....
The txtTimeOut.Text box needs to be validated somehow to the same format of hh:mm tt and then the third txtbox should be the difference of the two txtboxes.
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Nov 4, 2010
I need some pointers to start on this.We are building a time off application where three instances of a calendar control will be displayed ( prev - current and next month) now users can click on various dates accross all three instances and then a count of number of days should be diaplyed in the parent textbox.
To begin with this, i started with adding the dates clicked by the user in Calendar2_SelectionChanged method into a list<> so that i can get the all dates user clicked and then add it to calander's selected dates collection. But this throws an e" object reference not set" error.
Is there anyother way to get all the dates that user click onthe calendar( note the dates doesn't get highlighed so seleteddates doesnt work)does anyone has a good example for this.
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Jan 13, 2011
once a user select an item from dropdownlist > Dates from DB are shown on calendar in pink color.
The problem now is when i want to select new dates the selected dates(in pink) become deselected .. I want them to stay selected so i can know which dates are already used .
[Code]....
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Jan 21, 2010
i have to date say in MM/DD/YYYY format "1/1/2010" and 1/30/2010". now i want to find dates which comes on monday. so out out will be 01/04/2010, 1/11/2010, 01/18/2010, 01/25/2010
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Dec 3, 2010
I have a session variable with year stored in it and in my if condition I want to check if the current year is one less than the year in the session variable like this:
[Code]....
This isn't allowed though. It says operator '-' cannot be applied to operands of type object and int. How would I do this subtraction?
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Sep 30, 2010
How to display dynamic header for datalist control(Dates are dynamic).Also i want header in each row.I want something like this.Words in bold are headers.Header also in each
row.8/1/2010,8/8/2010,8/15/2010,8/22/2010 are dynamic dates whic change every month based on user selecting date from datecontrol.
HeadCount 8/1/2010 8/8/2010 8/15/2010 8/22/2010
Forecaster HC 447 446 441 432
Agents Scheduled 447 446 441 432
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Jan 23, 2011
I am saving to dates (fromdate) and (todate) into DB .. And then I want to view all the days (from to) and the dates in between , highlited in a calendar control ,, how can i do that ? I know how to highlight dates saved into calendar but how can i do the same to the dates inbetween ?
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Jan 29, 2011
I want a user to select (fromdate) from Calendar1 and (todate) from Calendar2, and then i want all dates in between to be saved in database .
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Dec 4, 2010
If i have three textboxes in my vb.net webform.
Textbox1.text="Sumit"
Textbox2.text="4-Dec-2010"
Textbox3.text="1-Jan-2011"
I want if dates selected are in between textbox2 dates and textbox3 dates then textbox1.text="sumit" else textbox1.text="No dates"
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Jan 12, 2010
Customers of hours buy packs of hours, these are credited and debited on their account. We have a prepayhours table and that has various columns in it, one credit and one debit. I have written a query using the Query building and SQLDS to total these columns, which is fine. What i really want to do is get that query, or if there is an easier way to add up all the debits and subtract them from the total of credits so you would end up with a + or - totalThen with that i can put it into a label or if there was a way to add a row at the end of my gridview which just said total in one column and the total of the hours in the next.
I have some SQL code which seems to work in SQL 2008 but not in the SQL designer for VWD.
CREATE VIEW dbo.prepayhrstotals
AS
SELECT COUNT(Debit) AS cntDebit, COUNT(Credit) AS cntCredit
FROM prepayhrs
GO
SELECT (cntdebit - cntcredit) AS totalhours
FROM prepayhrstotals
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Sep 22, 2010
i want to use a ajax calender extender in which when user clixcks on button caleder show only dates of current month not previous dates.i dont want to disable dates. i should not apper on current month calender. means it should start from 1 and end to 30 or 31
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Sep 17, 2010
I am generating multi-series graphs with the date along the X-Axis. The problem is that not all of the series in the graph have the same dates in the date range. Meaning that if I choose 1 Feb through 30 Apr that one series may have data that starts at 1 Feb but only goes through the end of March but another series may have data for the entire date range. This skews the charts I need to create. Go, given the date range taken at the begining of the query I'd like to generate a list of dates and populate the data to be graphed, padding those series with 0's for those dates that have no data.
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Jan 17, 2013
in my asp.net_vb code web. there are 9 textboxes whcih is used for entering numerical/dates
first is lve.text in whicj numder is entered
second one is lvefrom.text
thirdone is lveto.text
when user fills (lve.text) 5 and enter 15 Jan 2013 in lvefrom.text then lveto.text should show 19 Jan 2013. i had posted this earlier and got reply which is mentioned below. this code below gives me 20 Jan 2013 instead of 19 Jan 2013.
tw text boxes lve.text (number filled) and lve from.text (date filled). when user enter a numder in lve.text and select a date fro date picker in lvefrom.text then lveto.text should show date selected in lvefrom.text + number of days in lveto.text (eg if number of days is 5 and date selected in lvefrom.text is 15 Jan 2013 then lveto.text should display 19 jan 2013. because the starting day is also counted in my case.
Protected Sub lvefrom_TextChanged1(ByVal sender As Object, ByVal e As System.EventArgs) Handles lvefrom.TextChanged
Dim ObjLocDate As New Date
Dim IntLocDays As Integer
IntLocDays = Convert.ToInt32(lve.Text)
ObjLocDate = lvefrom.Text
ObjLocDate = ObjLocDate.AddDays(IntLocDays)
lveto.Text = ObjLocDate.Date.ToString("dd-MMM-yyyy")
End Sub
fourt tex box is pfx.text, fifth is pfx1.text, sixth is pfx2.text
when use filles pfx.text 3 then pfx1.text should display 12 Jan 2013 and pfx2.text should display 14 Jan 2013. these are the prefix for leave( as 12 to 14 Jan 2013 is prefix.seveth is sfx.text, eighth is sfx1.text and nineth is sfx2.text
when user fills sfx.text 3 then sfx1.text should display 20 Jan 2013 and sfx2.text should display.
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Dec 26, 2010
is there any way to get all dates b/w two date for example
14/10/2010
22/10/2010
so there are 9 days b/w two dates,i wanted to do it asp.net
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Jan 13, 2010
I try to substract two dates to obtain the result months.
For example
Date1 = 01/05/2009 -> May
Date2 = 01/02/2010 --> Febrary
Result: 10 month
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Jan 22, 2011
I am having trouble comparing two dates. One is captured from input, other one is predefined. Please see the code below: I enter this date in the textfield: 04-12-2001
Dim idatum As Date
If Date.TryParseExact(aankoopdatumIDclm.Text, "dd-mm-yyyy", Nothing, System.Globalization.DateTimeStyles.None, idatum) = False Then 'idatum is true at this point...
[code]....
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Mar 16, 2011
I want to send messages between 6 AM to 7 PM on the same day. how to assign two fixed time values and compare the current time.
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Mar 9, 2010
I wonder how it is possible to calculate dates.
The first thing I want to do is to save the date of TODAY.
Next thing to do is to determine if TODAYS date is >= than 7 days ago, wich is the first saved date.
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Jan 19, 2011
I m using Calender control to show holiday list. its DayRender event performing some function. When any user click on any date it w'll give error. so i want all the dates must be non-clickable.
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