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
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!
I have a date in string variable strOrderEndDate which looks like this 8/14/2015.
I would like to convert it to 2015-08-14.
How do I do this in vb.net?
I tried strOrderEndDate.ToString(yyyy mmmm dd) but its not working
As the comments indicate, you first need to convert the string to a date using CDate. Then you can use the .ToString method on the new date type variable to format the output as desired:
Dim strOrderEndDate As String = "8/14/2015"
Dim datOrderEndDate As Date = CDate(strOrderEndDate)
MsgBox(datOrderEndDate.ToString("yyyy-MM-dd"))
...or as Plutonix recommends, you can use DateTime.Parse to perform the conversion. He's pretty smart so if he says it's better, then it's better.
Dim datOrderEndDate As Date = DateTime.Parse(strOrderEndDate)
i have a string which has a value of "08-06-2008". I want the result to look like "08-06-08". Is there a way to do this? I've tried CDate but that only gives me 8/06/2008 which doesnt resolve the issue.
Parse it to Date and back to string:
Dim dt As Date = Date.ParseExact("08-06-2008", "MM-dd-yyyy", CultureInfo.InvariantCulture)
Dim result As String = dt.ToString("MM-dd-yy", CultureInfo.InvariantCulture)
Since that is a normal format you could also omit the format string and use Date.Parse directly:
Dim dt As Date = Date.Parse("08-06-2008", CultureInfo.InvariantCulture)
I have used CultureInfo.InvariantCulture to avoid localization issues, normally your current culture is used in Parse/ParseExact and ToString.
See: Custom Date and Time Format Strings
Firstly, avoid CDate. It is a hangover from VB6, and is almost certainly less efficient than using the .net equivalent.
The following should give you the right answer:
string value = DateTime.ParseExact("08-06-2008", "dd-MM-yyyy").ToString("dd-MM-yy")
Note that your existing date format is ambiguous, so I've been unable to tell if you're meaning the 6th of August or the 8th of June - this is why I've used ParseExact over Parse. ParseExact is also slightly more efficient, as it tells the framework which format to use, rather than it having to guess.
Try this
Dim FormatString As String = ""
Dim SampleDate As DateTime
SampleDate = Now()
FormatString = Format(SampleDate,"dd-MM-yy")
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.
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()