Checking Given Date Between Two Date Without Year?
Jun 24, 2009
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.
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Jun 22, 2010
when i get system date and add some day or month or year then i want next date as per requirement.
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Feb 21, 2011
I'm fairly new to ASP.NET & VB.I've been asked to take an existing textbox that is automatically filled with the current date and allow the user to either add a "+" or "-" and a number or a spcific number and convert that into a date.I underdstand the basic concept on how to do this, but I'm running into some problems using the proper commands in order for this to work.The Textbox is called txtDate.What I've tried to do is this:
If txtDate = '+' Or '-' Then
DateAdd("d", txtDate, today)
End If
Here is what the whole thing looks like:
Protected
Sub
DateEnter_Click(ByVal
sender As[code].....
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Nov 7, 2011
I 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
[code]....
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May 24, 2010
here is insert record coding
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|hvaccine.mdb")
cn.Open()
Dim str As String
[code]....
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Mar 10, 2011
I have question
1. If form is loaded then datagridview having 500 rows
2. How can I get the different Date IN YEAR only.
Public Class Form1
Dim DSd As New DataSet("DSd")
Dim DTd As New DataTable("DTd")
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.Size = New Size(1035, 680)
[Code] .....
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Apr 5, 2011
I'm pulling into a variable a datetime value. Now, I want to post this value back to my database, but I need it to be only the year digits. How do I get VB.NET to trim the month, day, and time off and just return the four character year (e.g. 2011)?
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Mar 12, 2009
Today is 3/12/2009 and based on today's date. I want to get the start date of this year and that will be 1/1/2009. Does anyone know if there is a way to do this? The reason for this is i want to get the DateDiff of today's date against the start date of today's date's year.
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Dec 27, 2011
My question title says all. Suppose the given date is 7th july 2011. So what I want to get in result is 6th July 2011. And leap years aren't to be counted. The day number always should be one less than today. I did this:Dim year As Date = "1/15/2009"''adds 1 years to current dateMessageBox.Show(year.AddYears(1))
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Mar 16, 2011
How can i change just the year part of a date? so if a user selects 3/10/2009 i want current to equal 3/10/2011
Dim current1 As Date
current1 = TextBox1.Text
current1.Year = Now.Year
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Feb 27, 2009
I hve a date selected from a calendar
I would like to break it down into its component parts i.e. Day, Month Year and assign them each to a variable
I have it in Excel
as
mydate = sOps.Range("G3")
'Convert the date in to string format
myday = Day(mydate)
[Code].....
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Sep 25, 2009
I am trying to get the current date in the following format - Year/Month/Day..Here is my code but the day bit isn't working.lblTodaysDate.Text = Year(Now).ToString() & "/" & Month(Now) & "/" & d(Now)
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Mar 3, 2012
How do I list every monday, as date, of a specific year?
I want to create this for every day of the week and put them into a datagridview. The most umportant is that I need to now how to get every weekday (e.g. monday) of the year.
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Jul 4, 2012
i have input of 1995 in the texbox.what is code to convert that string to DATE.... with format of Y
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Mar 30, 2010
i'm going to do a calendar using vb.net. and the first step i'm doing is making a button and a message box showing system's date
my code is as below but it's not working. i thought date is one of the vb function to get system date?Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
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Apr 8, 2010
Title pretty much says it all. How do I format the date of a dateandtimepicker to insert it into the SQL date datatype?
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Oct 20, 2011
I'm trying to split a date column into multiple columns by year. If I could achieve a roll-up subtotal at the end that would be awesome.
I'm thinking the best way to do it, is using a .NET datalist control, but I'm open to suggestions.
Example data:
DATE | SALES
1/1/2009 | 1234.56
2/1/2009 | 4567.89
[Code]....
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Jan 22, 2010
I m working on a site which requires me to calculate date(s) from the given week number for the year start set by the user in his setup.for ex. user set the year is from 1st April to 31st May in his setup and he selects week say 23rd then I have to find out dates for the week selected.
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Apr 2, 2009
How can I find the date of the Sunday of the first full week of a year using the DatePart function or something else? Jan 4 for 2009.
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Jan 24, 2012
my date and time picker cant get data on my SQL yog database it only get data on year 2011 .it cant show me data on year 2012...i hava a range of date.my code is :sSQL = "select * from qry_reciept where product_name LIKE '%" & txt_name.Text & "%' and b_desc = '" & cbx_brand.Text & "' and d_purchased >= '" & datetimepicker_1.Text & "' and d_purchased <= '" & datetimepicker_2.Text & "'"
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Jan 26, 2010
I want to enter Year, Month & Date in a separate TextBoxes to get a Function work as these 3 have to be given as parameters for that Function. I've been using 3 different TextBoxes to enter the Year, Month & Date. Now, I thought of using either a DateTimePicker / MonthCalendar for this. how to get it done. By clicking a Date in the DateTimePicker how can I get the Year, Month & Date separately fed into the Function? [Code]
Is there any way of getting the year, month & date separate from the DateTimePicker / MonthCalendar?
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Sep 24, 2011
anyone knows the query of selecting from monthname and year(September 2011) from mysql database DATE format(yyyy-MM-dd)
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Aug 26, 2009
I have two textboxes in my vb.net code
<tr>
<td align="right">
<b>ActivationReqDT:</b>
[Code]....
I want that when I enter date in dd/mm/yyyy in first text box (ActivationReqDTTextBox), it will automatically fill the second text box (DeactivationReqDTTextBox) by adding plus one year in above entered date.
provide your solution with javascript, jquery or vb.net
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Aug 16, 2009
I need to use .Select and filtering year on a date field,how can this be done,the next code give me error : the expression contains undefined function call year() vb.net For Each wRwTmp As DataRow In wTblC.Select("year(start_date)=" + wYear.ToString)Next
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Sep 24, 2011
I have a datetime picker which format is yyyy-MM(2011-09) and I need to choose all the records of a particular month, I use this like query but doesn't display anything
[Code]...
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Dec 13, 2009
I'm using VS in Vista. I have using a DataBase in SQL2008 which its date format is year,month,day. In my app I have the date format as Format(Now, "d") which shows 13/12/2009 but when inserted it displays as 1900-01-01 in the DataBase. How can I have the date format to dispalay year,month,day as in the database.
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Oct 25, 2011
I have an ASP.NET application that crashes when a null date value is returned.
The code line is:
excelWorksheet.Cells("A" & xlRowCounter).Value = IIf(IsDBNull(dRow("sysdate")), "", Format(dRow("sysdate"), "MM/dd/yyyy"))
Error message:
ERROR: System.ArgumentException: Argument 'Expression' is not a valid value.
How would I check for a null date, and replace it with "" in my app ?
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Feb 28, 2010
In the following code, a Date variable is declared but not set to anything:
Dim myDate As Date
What's the proper method of checking if the Date variable is "new" and not set to anything?
For example, getting the lowest date value from an array of dates:
Dim dtMostRecent As Date
For i As Intger = 0 To myDateArray.Count - 1
If myDateArray(i) < dtMostRecent Then dtMostRecent = myDateArray(i)
Next
In the code above, I need a way to check first if dtMostRecent is unassigned, in which case just give it the first value, after which it can be compared with subsequent values. How to check if a Date variable is unassigned.
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May 21, 2011
For my uni project I am designing a system that allows you to book a job into an Access database. My question is, Can you use a something like a calender or a diary to check if there is a job already booked on a certain date (like a duplicate date?), and in turn if there is, show an error message to inform the user that a job can't be booked on that date?
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Dec 1, 2011
I want to prevent a form from loading if the systems regional datetime settings format for the date is not in the form of dd/MM/yyyy.
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