I have 2 SQL tables (A & B) with dates in the format DD/MM/YYYY and time, for example 01/03/2012 00:00:00. In my VB.net application I am looking to count the number of records in table A which have a date less than the one in table B. I have no problem getting the dates from the database. I have extracted the date in table B and stored this in the program. how to compare the dates within the SQL query.
In short what I am trying to do is:
"select count(records) as totalRecords from table A where date < " & dateBvariable & ""
how can I create following thing with Visual basic?I would like my excel to check the date value in a cell and compare it to current date and if the value in the cell is older than 2 months compared to current date it would change the cell's colour.
Example For each PolicyNumber i have 5 NextPremiumDates.I want to display the 1st NextPremiumDate which is easy ...but i want to show the next NextPremiumDate only after the last NextPremiumDate has passed...How do i check if the last date has passed?I mean if i have 5 dates in the table given above...how do i check if the 1st date has passed then show 2nd date ...if 2nd has passed show 3rd and so on.
I have a txt file with a few settings that get loaded into the Program. These are put into an array. As the array holds different types (int, string, dates etc) its set to object type.
What i am trying to fingure out is how to check the date is a valid format, by returning a false value so i can have a msgbox pupup and say the date in the file is invalid. I cant use isdate() on the string from the file as even if the date format is correct its a string not a date type so i have to convert it first (which is the point it throws an error).
I would like to compare dates (not times) for 2 datetime variables. I get one of the dates from database as follows and comapre it with yesterday.How can I do it?
I am working on an application which uploads data from excel sheets into sql server database. The application will accept dates only if they are in mm/dd/yyyy format. It should reject all dates otherwise.
Now i am struggling to check its format. Here is my code.
Dim ROHSDate As String ROHSDate = Trim(filterString(holdingTank)) ...
here i need to check if it is in mm/dd/yyyy format
Is there any way to check date and hour without using two Timers?
Right now i have this for the date:
Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick Timer1.Stop()
[Code]....
PS (again): I thought about setting the Timer1 interval to 60000miliseconds, so that it would check the time everysingle step of the way (or maybe 10 minutes...), but I don't want the app to lag, so... How can i implement a Background Worker?
I need to check my field in format ddMMyyyy(ex 12/03/1990) whether in interval of two dates that user picks from two date picker controls. Two date pickers are in custom format dd/MM. It does not matter for me if its between particular years. I need just to know if given Birthday belongs to interval taken from screen. Each datepicker gives values dd/mm/yyyy. I do not know how to check it. For example: Given date 12/03/1990 . User select two values from screen: From 01/01/1950 Upto 30/04/1949(or 1990, or 2000) Result should be True.Because 12 march is between 01 Januar and 30 April.
I need to check my field in format ddMMyyyy(ex 12/03/1990) whether in interval of two dates that user picks from two date picker controls. Two date pickers are in custom format dd/MM. It does not matter for me if its between particular years. I need just to know if given Birthday belongs to interval taken from screen. Each datepicker gives
values dd/mm/yyyy. I do not know how to check it. For example:Given date 12/03/1990 . User select two values from screen: From 01/01/1950 Upto 30/04/1949(or 1990, or 2000) Result should be True.Because 12 march is between 01 Januar and 30 April.
I am working on a business related program, so I need to know if system date is correct -synced- with remote server. How do you do that in vb .NET winforms?
P.S: In addition, is there any way to raise some event when system clock changed to prevent hacks? I don't want users to change local date after logging in their account.
I am working for application register form and I would like to know when the user opens the register form I need to check if the current date is true or not and when the user tries to change the system date he should pop up message.So I would like to refresh the form for every second and find whether he has changed the date or not. How do I do that?
Here is my code:
btnRegister.Enabled = False Dim oReg As Microsoft.Win32.RegistryKey oReg = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software", True)
My application require to have Synchronized time for all userI have several PC connected to same Database in a LAN, but each PC Clock is set differently, maybe few minute before or after. I need to capture the time from the PC where the Database is located
I would need a function that would check the current date and in the end return the date of Monday this week. So say we have 02/06/10 today so I'd like that date or rather week_starting function to show 01/06/10 for the whole week. The formatting isn't important.
I'm basically trying to programmatically build each project in a list but only if they have changed. So does anyone know of a way (using EnvDTE maybe) to check if a project changed and therefore needs to compile?
I am a C# programmer but dabbling in VB.Net because everybody else in my team uses it. In the interests of professional development I would like to shrink the following If... Else... statement.
If cmd.Parameters("@whenUpdated").Equals(DBNull.Value) Then item.WhenUpdated = Nothing Else item.WhenUpdated = cmd.Parameters("@whenUpdated").Value End If
I would like to implement into my program a version query of the executable and I figured the easiest way would be having a check on the date of the executable. So how can I check the creation date of the executable that is currently running (from the program itself that is)?In short - double click on .exe and it will tell the date of its creation
How can i check the system date format? Tried with the code below, but when i change my system's date format to another date format to test the code, it's still showing the date format before changed!
I want to check Day & month of date which is in database.There is date field is in database which is mm/dd/yyyy format If I use "select" query then whole Date is access but I want only these date's which having today's day & month.Example: if today's date is 02/02/2010 then select only those date whose day is 02 & month is February.(Dont consider Year)
How to deal with a "date bug" that I have encountered in my program. Here is a scenario. 1. My system has a locale of en_US and therefore displays the date as MM/DD/YYYY 2. My program tries to import from a csv file in which it carries out tests on a field to check for a valid date before loading the rest of the data. 3. If the date in the file is in the format DD/MM/YYYY the test fails and therefore the data is not loaded. This is the bug. I would like code to test for the date string in the csv file that will recognize any date format (locale).
Is there a way to check if the date time picker has been changed? I have a date time picker set to allow a person to put in their date of birth and I have it set to no greater date than 12/1/1992, but I need to check that the user has actually selected a date before the form is submitted. Can it be checked?
I have a textbox where a user is supposed to enter a date. How can I check whether the entered date is in the correct date format?
Like this: 02/02/2008
not like this 022/22/-1 not like this 2009/02/02 not like this 02/Jun/2015 not like this 02/abc/2010
(I don't want to use DateTimePicker or MonthCalender).
EDIT 1 I tried it like this
Private Sub txtHireDate_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtHireDate.Validated Dim dateString As String = txtHireDate.Text Dim formats As String = "MM/dd/yyyy"
I am new to <acronym title="Visual Basic">vb</acronym>.net but i have been writing my first Application. The application is a customer database. I have a contacts form and in one of the fields the user puter their date of birth. Alk data is writen to a SQL database. I also have a listview on the right when the application lauches. I want this listview to show birthdays that are coming up in say the next 30days. This is so the user can send a card/ present.
Here is my SQL Update "update Contacts set contactname='" & tbName.Text & "', PostalAddress='" & tbAddress.Text & "', PhoneNumber='" & tbPhone.Text & "',MobileNumber='" & tbMobile.Text & "', Email='" & tbEmail.Text & "',DateOfBirth='" & Format(dtpDOB.Value, "dd MMM yyyy") & "' where contactID ='" & localContactID & "'"
Then my listview has the select "SELECT ContactName, DateOFBirth, ContactID FROM Contacts" I did try Dim todaysdate As DateTime todaysdate = Date.Now.AddDays(+30).ToString("dd MMM yyyy") But it is looking at the YYYY and for it to show evey year the YYYY has to be ignored.
my app has mssql database ,i want to create service by which date will be checked in database whether the product is expired or not , if the date in database is date today then automticaly user will get notification email there whould not be any need to interaction of any human to server to check and send it manually i want to make this process totaly automatic and i dont have any idea about it, can sql send mails?
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
If DateTimePicker1.Value.Year <= DateTimePicker2.Value.Year Then 'dtp2 = expiry date If DateTimePicker1.Value.Month <= DateTimePicker2.Value.Month Then MsgBox("Expiry Date Correct!") Else MsgBox("Expiry Date incorrect!") End If End If
How would I get it to check the date? Datetimepicker1 is the current date, while Datetimepicker2 is the expiry date.