Calculating Past And Future Dates From A Static Date?
Aug 10, 2010
I am teaching myself VB while creating a basic application I can use at work. Is there something in VB that will calculate a past and future date from a specific date. For instance, an Election Date falls on November 2, 2011. Once this election date is entered I want the program to calculate the reporting dates. The first report due is due exactly 32 days prior to the election. The 30 day post is due 30 days after the election.
I have a form where a user can choose an election date. One of the most frequent errors users make is entering the incorrect due dates of reports. Therefore, I am attempting to generate the report due dates in the application using the report guidelines. For instance, reports are due 32 and 15 days prior to the election and 30 and 60 days after an election.
I know the following won't work but you get the jest of what I am attempting to do. I am assuming I will need to break down the month, day and year somehow before I subtract or add the days to the date to get the actual report date.
I am trying to flag rows in a grid in the following order based on a date column
When 2 or more days old from today then RED When 1 day old then YELLOW When 0 days old then GREEN When the date is in the future then BLUE
I have the following which is working fine except for the future dates which are GREEN instead of BLUE.
Dim myDate As DateTime = CType(grdSummaryView.GetRowCellValue(e.RowHandle, "myDate"), DateTime) Select Case Now.Subtract(myDate).Days '2 or more days old then RED FLAG Case Is >= 2
how to disable the datetimepicker dates in the future and also all the weekend dates but i am unable to find any! Only thing i can find is ASP.net code.
I'm trying to make this program which compares the difference between any date in the past and the system date, showing how many days have elapsed since that date. This is the layout I've created so far, the two date boxes currently show the system date so even if I change the system date, both those boxes will adjust to show it as well. I want to try and make the system date a box without a drop down arrow and so you cannot edit the box at all. The box below is fine how it is as the user can enter any date they desire. And the text box at the bottom needs to show the difference between the system date and the inputted date.
I'm trying to write a program which compares the difference between any date in the past and the system date, showing how many days have elapsed since that date.This is what I've got so far:
Code: Public Class Form1 Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) End Sub
[code]....
That's what it looks like so far. I was wondering how you can automate the top label so it automatically comes up with the date when the program is run.Plus, I need to know how to display the dates difference (how many days have elapsed between the system date and the user's chosen date) in the bottom label.
I'm using the ASP.Net Membership system but I'm having an issue with the LastActivityDate for the users in the database. For some users, their last activity date is in the future...
I need to have the Calendar Control start 36 hours after the current date. How would I do that?
I have a form that requires that the future date has to be at least 36 hours from the current date in the order for the workers involved to be able to complete the task.
check values and keep the form from processing:
Protected Sub calPickupDate_SelectionChanged(sender As Object, e As System.EventArgs) Handles calPickupDate.SelectionChanged If calPickupDate.SelectedDate < Today.AddHours(36) Then
I tried to accomplish this via a MailMessage.Headers.Set call, in VB.net. See below:
Dim objMail As MailMessage Dim objSMTPClient As SmtpClient objMail = New MailMessage() objSMTPClient = New SmtpClient()
[Code]...
To be clear: I am not doing this with malicious intent. I am working on an e-mail integration component that utilizes both UIDs and a "Last processed" date to locate the first new e-mail to integrate. I want to test cases where multiple e-mails have the exact same date/time - as the e-mail integration module should handle those situations flawlessly. If I could simply fake the date this way, I could send as many e-mails as I wanted that matches a certain date/time, rather than trying to send them with an automated script - hoping they will all be received within the same second.
I made a programme through which I get a feed back clicking a button for a future warning date. I am giving the code below so that you can givthe problem is, I have to take 12 DateTimePicker to do that job in a single form which is creating a saving problem means when I click save button it takes long time to save. Now, I thought If I can do it by using TextBoxn a date format would easeup my save problem. Or it can be MaskedTextBox as well. Below is my code if any one can give me the solution.
Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If DateTime.Now > DateTimePicker1.Value.AddYears(1).AddDays(1) Then
I have a text box on a form. It is a masked text box that shows in the format XX/XX.It is used for the expiry date of a credit card.What I need to do is how to take a value like 08/11 which means August, 2011 and check that it is in the future.For example something like 08/09 would be last year and hence would be invalid.Is there any way to take this string and check?
I want to check at client end whether the entered date in text box is future date. I mean this textbox should allow future date only. code the above problem using jquery or vb.net
I am using VB.net as well as Jquery Datepicker for getting dates.
In my VB.net code <tr><td> DateOfReceiving: </td><td colspan="3"> <asp:TextBox ID="DateOfReceivingTextBox" runat="server" CssClass="pastdatepicker" Text="DateOfReceiving" /> </td></tr>
I want to allow enter user only todays date or past date with format dd/mm/yyyy. I want vb.net custom validation for that. How to write vb.net regular expression.
If i double click on the dataset. i am not sure which statement to write to restrict the user so that he/she cannot enter the date in the past. i have droped the data set on the form and my data entry is through datagrid view.
how can i make it like IF (todays date is passed a specific date) then basically what i need is to see if the date is passed a static date i set in the vb 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.
[Code]...
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.
I 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?
I have an excel sheet developed by a vendor that I'm stuck with the current functionality as a short term solution. The users workflow have them pull 4 separate sets of data which they are copying and pasting into a different spreadsheet where they append the data to previous days' pricing for trend analysis. That macro is built looking for the first blank row in column A, simple enough.
However, they then add the current day's date to this other spreadsheet as an additional column to do that trending. I found a nice link to a site that mentioned I could do this logic by adding code by right clicking the sheet name and selecting 'View Code'. I then entered the following logic that states if column A is populated, populate Column T with today's date statically (Today and Now don't work because I need it to stay at that date when it is refreshed). My issue is that this works great if I enter test data into cell A and hit enter. However it is not populating the date if a copy and paste is executed into the column A. Is there something I'm missing or a recommendation to have this work with copy/paste?
Private Sub Worksheet_Change(ByVal Target As Range) If Target.Cells.Count > 1 Then Exit Sub If Not Intersect(Target, Range("A2:A15000")) Is Nothing Then
I 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.
I am writing an application for my class, wherein I have a mortgage that will give the customer a discount of 1% on their interest if they pay early in the month, or penalize them by 1% if they are after the due date. Right now, I have it working with a checkbox that the user selects. However, I would like to have VB see the current date on the calendar I placed in the application already, and calculate the appropriate amount of interest based on that information. I am using Microsoft 2008 Visual Basic Express Edition on a PC.
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)
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.????
Thought 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
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
