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)?
Date.Today.Year is what you're looking for, or for an existing date, just someDateVariable.Year
i know this is a bit late to answer
but, it wont hurt telling, try "year(now) " and load it to a variable
Example:
Dim Year_in_Digits = Year(Now)
Dim myDate As DateTime = #1/1/2011#
Dim myYear As Int32 = myDate.Year
There is a property on the DateTime structure called 'Year'. This returns an integer representing just the year.
If you need to convert this to a string, just use the ToString() function.
So..
MyDT.Year.ToString()
That's a c# example, I'm sure VB.Net is going to be very similar.
I just had to do this for my VB program.
Dim Year As Integer
Year = Convert.ToInt32(Now.ToString("yyyy"))
Use just "yy" if you want two digit year. Then, when you need to display it somewhere:
year.tostring
I hope this will help because I tested it
Dim nowYear As Integer = Date.Now.Year
I know it's late,but am sure i will help someone
To get exact year in vb:
Dim date As String=Now.Year.ToString()
Related
I want to filter SQL-table between start date and end date, I used before string variable then I use string.format to make the format mm/dd/yyyy, I tried now in VB.net 2015 the following code:
Dim S as String
s=inputbox("Enter Start date")
S=string.format(S,"mm/dd/yyyy")
But it doesn't work, can somebody give me a solution?
You could try this for handling the input value, assuming you only need the date value as a formatted string, since your question is about formatting a date:
Dim S As String
S = InputBox("Enter Start date")
If IsDate(S) = True Then
Dim d As Date = Date.Parse(S)
S = d.ToString("mm/dd/yyyy")
Else
'Handle the non date input here
End If
But I think you should consider #Plutonix comment, since we don't know exactly how you are sending the date to perform the filtering, or how your table fields are defined.
Regards!
Hi I'm new to coding and am looking for some help! I've been trying to add 1 month to a date that I've already stored in my database and displayed on a gridview.
Dim dueDate As DateTime = lblDateA.Text.AddMonth(1)
I know the way that I've done it is wrong but i hope you get the idea i'm going for! Thanks in advance!
First convert the date to a DateTime and add Month to it.
Dim dueDate As DateTime = Convert.ToDateTime(lblDateA.Text).AddMonths(1)
Firstly, the Text of a Label is a String, so you can't add a month to it. Whatever you're displaying in that Label should already be being stored in a DateTime variable somewhere. You would then add one month to that and then display the new value, e.g.
Me.dateA = Me.dateA.AddMonths(1)
lblDateA.Text = Me.dateA.ToShortDateString()
You convert the text to a Date and then add the month.
Private Function ConvertDGVDateAndAddMonth(dateAsString As String) As Date
Dim dt As Date
If Date.TryParse(dateAsString, dt) Then
'parsed correctly so we can use the dt variable as a date
Return dt.AddMonth(1)
End If
'if it does not convert return Nothing
Return Nothing
End Function
USage:
Dim dt As Date = ConvertDGVDate(dgv.CurrentCell.Value.ToString)
'if this does not convert dt = Nothing
'be sure to check
Im a complete NOOB in VB so please excuse the newbie question
Im running the following code which produces the current system date, as you can see in image below.
Dim cyear As Date
cyear = Date.Now
MsgBox(cyear)
My Question
I'm looking for a way to remove all the characters in the textbox above so that only the highlighted yellow numbers will remain. Which represents the last 2 digits of the current year.
You'll have to use a date format string, e.g.:
Dim value = String.Format("{0:yy}", DateTime.Now)
or
Dim value = DateTime.Now.ToString("yy")
Have a look at Custom Date and Time Format Strings.
Format the date before you output it:
Dim cyear As Date
cyear = Date.Now
Dim yearShort as string = cyear.ToString("yy")
MsgBox(yearShort)
For more formats, read here: http://msdn.microsoft.com/library/8kb3ddd4%28v=vs.110%29.aspx
It's best to simply pass a format to the tostring method.
DateTime.Now.toString("yy")
If that doesn't work...
DateTime.Now.toString("yyyy").Substring(2,2)
http://msdn.microsoft.com/en-us/library/zdtaw1bw(v=vs.110).aspx
I am trying to format a date to a specific string and the code is returning incorect outcome.
CDate(RDate).ToString("ddMMy")
is returning the year as 2 digits is there a way to make it return the correct just last digit ? I know that I could substring to get the result but I would like to use a format string to allow customer to create their own.
Just glue them together with String.Format():
Dim dt = CDate(RDate)
Dim s = String.Format("{0}{1}", dt.ToString("ddMM"), dt.Year Mod 10)
The 'y' just indicates that the leading 0 is to be removed if the year is between 0 and 9. There is no format for just getting the last digit of the year.
See the MSDN documentation for the available custom formats.
The Custom Format year formats are limited to returning a minimum of a 2 digit year except in the situation that Compentent_tech mentions where you are using y and the year is ending with a 00 to 09. you can check out the MSDN Documentation. You will need to use string manipulation to achieve what you want.
Using that fact you can try something like this.
Dim RDate As Date = Now.Date
Dim NDate As Date = New Date((RDate.Year Mod 10), RDate.Month, RDate.Day)
CDate(NDate).ToString("ddMMy")
try this code :
Dim dt As DateTime = DateTime.Now
CDate(dt).ToString("ddMMyy").Remove(4, 1)
this code removes first of 2 digit year value.
txtDate = 3/7/1994
Basically I want my button to calculate the 'month' digit (in this case 7) and display it into txtMonth.
What is the simplest way to do this?
Note the date will come from a user's input.
By the way, it's for Visual Basic! If you could actually explain it instead of telling me what to do, that would be great!
Found the code:
Dim theDate As Date
Dim theMonth As Integer
theDate = txtDateOfBirth.Text
theMonth = Month(theDate)
txtMonth.Text = theMonth
Cheers!
Split 3/7/1994 it on slashes, pick the second value from the splits and then assign it to txtMonth. This should be doable in whatever your programming language is :)
In C#
string[] splits = dateValue.Split("/".ToCharArray());
txtMonth = splits[1];
Supposing dateValue = "3/7/1994"
But do specify your programming language.
Split the string into an array (on "/"), the second item (1), will be your month.
convert your date variable to a datetime then use the format of datetime (C# code):
DateTime dt;
bool isValid = DateTime.TryParse(txtDate, out dt);
if (isValid)
dt.ToString("MM");