I need to figure out whether a certain date falls within a range of dates. For example the date 11/07/97 (MM/DD/YYYY) falls within the following range of dates formatted as shown below:
01-Apr and 31-May
01-Jun and 31-Oct
01-Nov and 31-Mar
I am having trouble with a table adapter i am working on. In the table adaptor query i am having adaptor take a sum of the data that falls within a date range in a few columns. then i have some text boxes on my program refencing the columns that are being summed together. The program then gives me an error when i go to run the function.
View 16 RepliesI am trying to get a list of dates from a provided StartDate and EndDate in my database, and use these dates to link to dates in a database (to display another variable on the y-axis of the chart) and to populate the x-axis of a chart (with the list of dates). Is it possible to get a list of dates in VB and pass them into a chart this way?
View 2 Repliesam using sql 2005 and vb 2008.i need to compare dates and select matching records betweem a selected date range.say records between 11/13/2010 and 11/20/2010.e.thing is working ok except when it comes to selecting dates between 11/1/2010 and 11/9/2010.this is happening because when am retrieving the dates from database,its being retrieved in the format 11/01/2010 instead of 11/1/2010 and so it reports no records found,and knowing the limits of sql 2005 this is the only way i can retrieve the date. [code]
View 7 RepliesDim myDate1 As DateTime = datetimepicker1.value
Dim myDate2 As DateTime = datetimepicker2.value
Dim myDateToCheck As DateTime = datetimepicker3.value
[Code]....
this is for a single date..but i have list of date ....and i want to check how many days fall from march 20 to apr 10 between jan 4 to apr5..
I am calculating a date for employees to resume work.Now if the date for instance falls on friday, that means the employee has to reutrn to work the next day which will be saturday.This is rigth but what i want is even though the return date falls on weekend, i want to be able to shift the date to the next working day ..Monday for example.so that it will not show that the employee has to return on any weekend day if there falls one.But rather a working day Monday Date.[code]....
View 2 RepliesI want to verify if the current system time falls within the specified time range between 7:30pm - 9:00pm. If it falls within the specified time range then display a message.
View 7 Repliesin a form I need to set the text of labels while looping through a range of dates set by a start date and an end date. Right now I have come up with this code,
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I have been asked to create a program to create schedules for the Hospital where my wife works. Right now they do it in excel with a few macros. One question before I start, can multiple dates be selected from a DTP. Say for the month of July, my wife has to work the 3,4,5, the 10,11,12, the 17,18,19 and the 24,25,26. Can I select multiple dates for the month?
View 2 RepliesIs it just me or is it so that a DateTimePicker can only be used for entering dates or times but not both?
View 9 RepliesI am developing one desktop application using vb.net 2008 and Microsoft SQL Server 2005. fetching the data from database between a given range.
the date field in my table is of type VARCHAR(25) and the date format stored is dd-mm-yyyy. when I using the between clause in the SQL query then it is not giving all the data every time i.e. the date criteria in where clause is not working fine.
while my clients requirement is to keep the date format as dd-mm-yyyy and fetch the data according to the given range.
I search on the forum and found many queries to fetch the data by converting or type casting the date field within sql query but nothing worked.
The table structure that I am using is as follows
USE [Firm_master]
GO
/****** Object: Table [dbo].[tblTransaction] Script Date: 05/17/2011 21:49:11 ******/
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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
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How can I determine if a varable called "date1" is within the range of variables "date2" and "date3"?
For example, if date1 is 12/31/1999, and dates 2 and 3 are 12/31/2001 and 12/31/1997 (or the other way around), then first date is between the 2nd and 3rd dates.[code]...
how can I determine if a varable called "date1" is within the range of variables "date2" and "date3"?For example, if date1 is 12/31/1999, and dates 2 and 3 are 12/31/2001 and 12/31/1997 (or the other way around), then first date is between the 2nd and 3rd dates.
View 18 RepliesTrying to work out if there's a nice way of doing this, preferably in Linq rather than loops, which is what I've done for now.
I want the number of days my Product is active between two dates.
Product has many ProductHistories, ProductHistory has values for DateActive and DateInactive. DateInactive can be null, and often will be, to show that this history is ongoing. Histories won't overlap.
I want to sum the maximum of my startDate or the ProductHistory's DateActive, and subtract that total from the sum of the minimum of endDate or ProductHistory's DateInactive (endDate by default if DateInactive has no value).
Worked example:
Get active number of active days between 2011-01-01 (1st Jan) and 2011-02-01 (1st Feb)
Histories:
Active 2010-12-25 : Inactive 2011-01-05
Active 2011-01-15 : Inactive 2011-01-20
Active 2011-01-25 : Inactive null
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I am trying to get my calendar to render with all the dates in my database, using ranges. Only problem is, I got it working fine, but it has shifted everything one day to the future.
Protected Sub CalDayRender(ByVal sender As Object, ByVal e As DayRenderEventArgs) Handles Calendar1.DayRender
Dim strConn As String = ConfigurationManager.ConnectionStrings("SiteDataConnString").ConnectionString
Dim strQuery As String = "SELECT [EDATESTART], [EDATEEND], [ENAME] FROM [EVENTS_FORM] WHERE [EACTIVE] = 'Yes'" '"SELECT * FROM [even
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this is for a single date..but i have list of date ....and i want to check how many days fall from march 20 to apr 10 between jan 4 to apr5..
im doing an employee attendance monitoring system, and i need to have a search feature which shows an employee attendance record in a given range of dates
example[code...]
I have two tables: a schedule table that contains information about how an employee is scheduled and a numbers table in which each number corresponds to a date.
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I can do this on the SQL side or the code side. I have Linq at my disposal if I need it. The table doesn't need to be compiled by SQL. This will happen dynamically on a website and should be as efficient as possible.I don't want to have to iterate through each and look for breaks in contiguous days if I don't have to.
Would it be possible to search a table, confining to a specific date range based on a date-time column, and get a count of the 10 most used words in a particular var-char column excluding a list of words?All in SQL?Currently I am pulling out the records that match and sorting through the contents outside of SQL, I would think where I can do it directly on the server it would be more efficient.(SQL 2008)
View 4 RepliesI have several records in a database that have Start and End Dates
09/15/2011 - 09/30/2011
10/15/2011 - 10/22/2011
11/01/2011 - 11/15/2011
When user stores a record, I need to make sure dates don't overlap.My simple code checks date ranges within a specific record (e.g. user enters 9/16/2011 or 10/21/2011, I throw an exception.)But, on the slim chance a user gets creative (e.g. 10/14/2011 - 10/23/2011 or even 10/14/2011 to 11/16/2011), now they have circumvented my check.BTW, the user could enter 10/14/2011 to 10/23/2011 if they were editing the record that contained values 10/15/2011 - 10/22/2011.So, I'm trying to solve this riddle with a linq query. However, what I have isn't working exactly right.
UPDATE Nevermind about code not working. While trying to provide an example to expand on Miika's repsonse, I found my answer. So, giving credit to Miika for pointing me in the right direction and posting my working code below:
Here's my code:
Private Sub CheckForOverlap(myMonth As Messages.MyMonth)
Dim am As New MyMonth()
Dim amCollection As Messages.MyMonthCollection
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with a system of regional date configuration as dd/MM/yy
isdate("13/08/10 10:00") ' returns true, but with a system of regional date configuration as MM/dd/yy
isdate("13/08/10 10:00") ' returns false
how to handle this situation, all i need is i want to check a string for convert able to valid date format & then convert the same.
I need to get all dates between a start and end date and then add them to a list or collection.
View 2 Repliesi just want to ask how can i populate a listview n vb.net that has a is limited by a date from and date to.i have a datetimepicker for start date and datetimepicker for end date and i want do list all the entry of my database in listview that is within the range of the start date and end date.
View 5 RepliesThought I'd see if Stack overflow is quicker than me testing something while I get a thousand interruptions from other work :)
I'm updating an old VB net application and trying to refactor some of the logic as I go. The app looks for data from a single date across a few tables and writes that view to a file.
Writing the query in SQL I'd get the equivalent of
SELECT * FROM table
WHERE CAST(FLOOR(CAST(table.date AS float))AS datetime) = '15-Jul-2010'
Ideally I'd use
SELECT * FROM table WHERE date=@input
and add a date object as a parameter to a System.Data.SqlClient.SqlCommand instance
Are those two comparable? Will I get the results I expect?
I have an data base (.mdb) and it has a column with dates (dd/mm/yy) , some one give me a code to get all the dates in database between 2 dates , the code was :Select * from table where date between 'StartDate' and 'EndDate'but after I use the code , an error occurs told me that the types of data is not the same
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I have a table which has the following Columns
TransDate(varchar20) , Name(varchar20), Address(varchar20), Amount(int), Balance(int)
Now i need to get "Recent Balance" which i am getting using the following Query Select Balance from myTable where TransDate = (Select Max(TransDate) from myTable) This query is giving me proper result if there is only one entry per day like below
10/12/2010 SomeName SomeAddress 1000 1000
10/13/2010 SomeName SomeAddress 1000 2000
10/14/2010 SomeName SomeAddress 1000 3000
But what if i have more than 1 entries per day as shown below?
10/12/2010 SomeName SomeAddress 1000 1000
10/12/2010 SomeName SomeAddress 1000 2000
10/12/2010 SomeName SomeAddress 1000 3000
How to get the "most recent balance" using the above date format?
I have a table which has the following ColumnsTransDate(varchar20) , Name(varchar20), Address(varchar20), Amount(int), Balance(int)Now i need to get "Recent Balance" which i am getting using the following QuerySelect Balance from myTable where TransDate = (Select Max(TransDate) from myTable)This query is giving me proper result if there is only one entry per day like below
View 7 RepliesI have following code and I can filter data on grid but when I pick same date in 2 datepicker it shows nothing.
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i want to check whether the dates in a file are consecutive.that is if the dates are 7.10,2011 ,7.11.2011,7.12.2011 it should return true and if they are 7.10.2011,7.12.2011 it should return false.
View 8 Replies