DateDiff Not Working while trying to extract hour difference [duplicate] - vba

I've got this code
If IsDate(EndTime) = True Then
Worksheets("Control_File2").Range("D" & lrow2).Value = EndTime
Else
Worksheets("Control_File2").Range("D" & lrow2).Value = "Not Provided"
End If
and currently End Time = "25/08/2021 07:35:47.546" but the code always goes to the "Else" condition.
why is it not recognizing it as a date?

As GSerg pointed out, the milliseconds are not being handled by IsDate().
Function IsDate2(Value As Variant) As Boolean
Rem I added this line to escape empty strings
If Len(Value) = 0 Then Exit Function
IsDate2 = IsDate(Split(Value, ".")(0))
End Function

Related

IsDate Function not recognizing date

I've got this code
If IsDate(EndTime) = True Then
Worksheets("Control_File2").Range("D" & lrow2).Value = EndTime
Else
Worksheets("Control_File2").Range("D" & lrow2).Value = "Not Provided"
End If
and currently End Time = "25/08/2021 07:35:47.546" but the code always goes to the "Else" condition.
why is it not recognizing it as a date?
As GSerg pointed out, the milliseconds are not being handled by IsDate().
Function IsDate2(Value As Variant) As Boolean
Rem I added this line to escape empty strings
If Len(Value) = 0 Then Exit Function
IsDate2 = IsDate(Split(Value, ".")(0))
End Function

Format interval as "YMD" format with the format being a parameter in the function

The following is my code:
Option Explicit
Public Function StudyDuration(ByVal Start As Date, Format As String, Optional ByVal Graduation As Date, Optional ByVal Expected As Date) As String
Dim TillGraduation As Integer
StudyDuration = Graduation Or Expected - Start
TillGraduation = DateDiff("ymd", Date, Expected)
If Graduation = 0 And Expected = 0 Then Graduation = Date
Range("B1").Value = Start
Range("B2").Value = Graduation
Range("B3").Value = Expected
Range("B4").Value = StudyDuration
Range("B5").Value = TillGraduation
If Graduation = 0 And Expected > Start Then
StudyDuration = Expected - Start And TillGraduation = DateDiff("ymd", Date, Expected)
MsgBox ("Study Length" & " is" & Range("B4").Value & vbNewLine & Range("B5") & "till Graduate")
End If
End Function
However, the cell B1 keeps showing the date 1/7/1900. Can anyone tell me how should I correct it?
Thanks a lot!
I believe that functions are not allowed to modify cell values. A function is only supposed to return a value that will set the value for the cell that is called from.
If you want to modify cell values, then you should look at using a Sub instead.
BTW, your function makes no use of the Format parameter.

Teleform VBA recieving error remove preceding zeros then fill blank fields with one zero 20170412

This is my VBA in a form for a program called Teleform. My tech support is only for the program and they are unable to assist with scripting to remove preceding zeros from collected data of 2 specific fields. The fields are numeric Month and day fields that are stored as text.
I need another script that will put a zero in all empty or blank data fields.
We found a script online that I have tried to accommodate to the preceding zero deletion. It runs but I receive the error "A runtime error occurred in the 'Form_Export' event of the 'Form_Script' project. Unspecified error (v11.0 11038)".
I am way over my head and in need of ur knowledge.
TIA for ur assistance! and Happy Happy Easter everyone!
Private Sub Form_Evaluate()
Sub Form_Export()
Function RemoveLeadingZeroes(ByVal MONTH) THIS PORTION SAMES IN RED TEXT, IF TRIED REMOVING BUT IT AND RECEIVE SAME ERROR MESSAGE.
Dim tempmonth
tempmonth = MONTH
While Left(tempmonth, 1) = "0" And tempmonth <> ""
tempmonth = Right(tempmonth, Len(tempmonth) - 1)
Wend
RemoveLeadingZeroes = tempmonth
End Sub
Function RemoveLeadingZeroes(ByVal DAY) THIS PORTION SAMES IN RED TEXT, IF TRIED REMOVING BUT IT AND RECEIVE SAME ERROR MESSAGE.
Dim tempday
tempday = DAY
While Left(tempday, 1) = "0" And tempday <> ""
tempday = Right(tempday, Len(tempday) - 1)
Wend
RemoveLeadingZeroes = tempday
Your function definitions are nested within a subroutine (actually 2) and that's not how it works... here, I will clean it up for you, but I did not test it to see if it does what you want, as integers do not have leading zeros.
Function RemoveLeadingZeroes(ByVal MONTH As String) As Integer
Dim tempmonth
tempmonth = MONTH
While Left(tempmonth, 1) = "0" And tempmonth <> ""
tempmonth = Right(tempmonth, Len(tempmonth) - 1)
Wend
RemoveLeadingZeroes = tempmonth
End Function
Function RemoveLeadingZeroes(ByVal DAY As String) As Integer
Dim tempday
tempday = DAY
While Left(tempday, 1) = "0" And tempday <> ""
tempday = Right(tempday, Len(tempday) - 1)
Wend
RemoveLeadingZeroes = tempday
End Function
Alternatively, you could just use the val() function to turn a string into an integer.

Date Validation not working correctly

I am trying to validate a date that is entered into a textbox on a user form. When I enter for example 23/7/15 the code works fine and gives me a value as the date entered is valid, when I enter 32/7/2015 I get a message that I program telling the user that they have entered a wrong date but if I enter 32/7/15 it sets the date in the code to some date in 1932 and as this is a valid date it does not throw the error. Below is the code that I am using. Is there anyway to validate 32/7/15?
Private Function errorCheckingDate(box1, message) As Boolean '<============= Returns a True or a False
If Not IsDate(box1) Then '<============================================= Checks to see if entered value is date or not
MsgBox message, vbExclamation, "Invalid Selection" '<=============== Displays a messgae box if not date
box1.SetFocus '<==================================================== Puts cursor back to the offending box
errorCheckingDate = True '<========================================= Sets function to True
End If
End Function
box1 is just the value of the textbox once it has been converted to a date. Below is the conversion
secondSelectedStr = Format(DateTextBox.value, "dd-mm-yy") '<===== Convert to correct format
Any help would be great.
In addition to the ordering issue, VBA will also try to adapt invalid date ranges to a proper date. For example, this has always been a neat technique to get the X day of the year:
d = DateSerial(2015, 1, X)
X can be really any number here (up to the limits of the data type, of course). If X is 500, it will produce the date 2016-5-14. So the mm/dd vs dd/mm vs yy/mm/dd issue plus the fact that VBA accepts numbers outside valid ranges are both troublesome.
Without range-checking each date component (where you have to consider leap years and whatnot), I think the best solution is to just have VBA create your date and then test it to ensure it's what you're expecting. For example:
' Get the date components (assuming d/m/yy)...
Dim a As Variant
a = Split(strDate, "/")
' Need 3 components...
If UBound(a) <> 2 Then MsgBox "Invalid date": Exit Sub
' Create the date. This will hardly ever fail.
' VBA will create some kind of date using whatever numbers you throw at it.
Dim d As Date
d = DateSerial(a(2), a(1), a(0))
' Make sure the date VBA created matches what we expected...
If Day(d) <> CInt(a(0)) Then MsgBox "Invalid day": Exit Sub
If Month(d) <> CInt(a(1)) Then MsgBox "Invalid month": Exit Sub
If Right$(Year(d), 2) <> a(2) Then MsgBox "Invalid year": Exit Sub
You could throw that into a subroutine (you may have noticed the Exit Sub statements) to validate the date that gets entered. The TextBox_Exit event would work well. That way, you could set Cancel = True to prevent the user from leaving the textbox with an invalid date.
Thanks for the answers guys but I need to accommodate for leap years and other things. As the isdate function works if the date is entered in the form 1/1/2015 I have just used the len() function to make sure that the date entered is of a certain length. Below is the code that I used. Thanks for you help once again. :)
Private Function errorCheckingDate(box1, message) As Boolean '<============= Returns a True or a False
If Not IsDate(box1) Or Len(box1) < 8 Or Len(box1) > 10 Then '<============================================= Checks to see if entered value is date or not
MsgBox message, vbExclamation, "Invalid Selection" '<=============== Displays a messgae box if not date
box1.SetFocus '<==================================================== Puts cursor back to the offending box
errorCheckingDate = True '<========================================= Sets function to True
End If
End Function
Maybe instead of using IsDate you could use your own custom function likened to it.
Function isValidDate(d as String) as Boolean
Dim parts as Variant
Dim months29 as variant
Dim months30 as variant
Dim months31 as variant
months29 = Array(2)
months30 = Array(4, 6, 9, 11)
months31 = Array(1, 3, 5, 7, 8, 10, 12)
parts = Split(d, "-")
if parts(2) mod 4 = 0 then
daysLeapYear = 28
else:
daysLeapYear = 29
end if
if ((IsInArray(parts(0), months29) and parts(1) <= daysLeapYear) or _
(IsInArray(parts(0), months30) and parts(1) < 31) or _
(IsInArray(parts(0), months31) and parts(1) < 32)) and _
parts(2) < 16 then
isValidDate = True
else:
isValidDate = False
end if
end function
Function IsInArray(stringToBeFound As String, arr As Variant) As Boolean
IsInArray = (UBound(Filter(arr, stringToBeFound)) > -1)
End Function
This should cover most cases. Not sure how detailed you feel you need to be. IsInArray courtesy of #JimmyPena.

Run-time error "13": in my VBA excel code

I'm writing a script that will count a numbers of days between few separate dates. I have a data in cell like:
1-In Progress#02-ASSIGNED TO TEAM#22/01/2013 14:54:23,4-On
Hold#02-ASSIGNED TO TEAM#18/01/2013 16:02:03,1-In Progress#02-ASSIGNED
TO TEAM#18/01/2013 16:02:03
That's the info about my transaction status. I want to count the numbers of days that this transaction was in "4-On Hold". So in this example it will be between 18/01/2013 and 22/01/2013.
I wrote something like this(sorry for ma native language words in text)
Sub Aktywnywiersz()
Dim wiersz, i, licz As Integer
Dim tekstwsadowy As String
Dim koniectekstu As String
Dim pozostalytekst As String
Dim dataztekstu As Date
Dim status4jest As Boolean
Dim status4byl As Boolean
Dim datarozpoczecia4 As Date
Dim datazakonczenia4 As Date
Dim dniw4 As Long
wiersz = 2 'I start my scrypt from second row of excel
Do Until IsEmpty(Cells(wiersz, "A")) 'this should work until there is any text in a row
status4jest = False 'is status 4-On Hold is now in a Loop
status4byl = False 'is status 4-On Hold was in las loop
dniw4 = 0 ' numbers od days in 4-On Hold status
tekstwsadowy = Cells(wiersz, "H").Value2 'grabing text
tekstwsadowy = dodanieprzecinka(tekstwsadowy) 'in some examples I had to add a coma at the end of text
For i = 1 To Len(tekstwsadowy)
If Right(Left(tekstwsadowy, i), 1) = "," Then licz = licz + 1 'count the number of comas in text that separates the changes in status
Next
For j = 1 To licz
koniectekstu = funkcjaliczeniadni(tekstwsadowy) 'take last record after coma
Cells(wiersz, "k") = koniectekstu
dataztekstu = funkcjadataztekstu(koniectekstu) 'take the date from this record
Cells(wiersz, "m") = dataztekstu
status4jest = funkcjaokreslenia4(koniectekstu) 'check if there is 4-On Hold in record
Cells(wiersz, "n") = status4jest
If (status4byl = False And staus4jest = True) Then
datarozpoczecia4 = dataztekstu
status4byl = True
ElseIf (status4byl = True And staus4jest = False) Then
datazakonczenia4 = dataztekstu
status4byl = False 'if elseif funkcion to check information about 4-On Hold
dniw4 = funkcjaobliczeniadniw4(dniw4, datazakonczenia4, datarozpoczecia4) 'count days in 4-On Hold
Else
'Else not needed...
End If
tekstwsadowy = resztatekstu(tekstwsadowy, koniectekstu) 'remove last record from main text
Next
Cells(wiersz, "L") = dniw4 ' show number of days in 4-On Hold status
wiersz = wiersz + 1
Loop
End Sub
Function funkcjaliczeniadni(tekstwsadowy As String)
Dim a, dl As Integer
dl = Len(tekstwsadowy)
a = 0
On Error GoTo errhandler:
Do Until a > dl
a = Application.WorksheetFunction.Find(",", tekstwsadowy, a + 1)
Loop
funkcjaliczeniadni = tekstwsadowy
Exit Function
errhandler:
funkcjaliczeniadni = Right(tekstwsadowy, dl - a)
End Function
Function dodanieprzecinka(tekstwsadowy As String)
If Right(tekstwsadowy, 1) = "," Then
dodanieprzecinka = Left(tekstwsadowy, Len(tekstwsadowy) - 1)
Else
dodanieprzecinka = tekstwsadowy
End If
End Function
Function resztatekstu(tekstwsadowy, koniectekstu As String)
resztatekstu = Left(tekstwsadowy, Len(tekstwsadowy) - Len(koniectekstu))
End Function
Function funkcjadataztekstu(koniectekstu As String)
funkcjadataztekstu = Right(koniectekstu, 19)
funkcjadataztekstu = Left(funkcjadataztekstu, 10)
End Function
Function funkcjaobliczeniadniw4(dniw4 As Long, datazakonczenia4 As Date, datarozpoczecia4 As Date)
Dim liczbadni As Integer
liczbadni = DateDiff(d, datarozpoczecia4, datazakonczenia4)
funkcjaobliczaniadniw4 = dniw4 + liczbadni
End Function
Function funkcjaokreslenia4(koniectekstu As String)
Dim pierwszyznak As String
pierwszyznak = "4"
If pierszyznak Like Left(koniectekstu, 1) Then
funkcjaokreslenia4 = True
Else
funkcjaokreslenia4 = False
End If
End Function
And for now I get
Run-time error "13"
in
dataztekstu = funkcjadataztekstu(koniectekstu) 'take the date from this record
I would be very grateful for any help.
You are getting that error because of Type Mismatch. dataztekstu is declared as a date and most probably the expression which is being returned by the function funkcjadataztekstu is not a date. You will have to step through it to find what value you are getting in return.
Here is a simple example to replicate that problem
This will give you that error
Option Explicit
Sub Sample()
Dim dt As String
Dim D As Date
dt = "Blah Blah"
D = getdate(dt)
Debug.Print D
End Sub
Function getdate(dd As String)
getdate = dd
End Function
This won't
Option Explicit
Sub Sample()
Dim dt As String
Dim D As Date
dt = "12/12/2014"
D = getdate(dt)
Debug.Print D
End Sub
Function getdate(dd As String)
getdate = dd
End Function
If you change your function to this
Function funkcjadataztekstu(koniectekstu As String)
Dim temp As String
temp = Right(koniectekstu, 19)
temp = Left(temp, 10)
MsgBox temp '<~~ This will tell you if you are getting a valid date in return
funkcjadataztekstu = temp
End Function
Then you can see what that function is returning.
I tried running your code, but it is a little difficult to understand just what it is that you want to do. Part of it is the code in your language, but the code is also hard to read beacuse of the lack of indentation etc. :)
Also, I do not understand how the data in the worksheet looks. I did get it running by guessing, though, and when I did I got the same error you are describing on the second run of the For loop - that was because the koniectekstu string was empty. Not sure if this is your problem, so my solution is a very general.
In order to solve this type of problem:
Use Option Explicit at the top of your code module. This will make you have to declare all variables used in the module, and you will remove many of the problems you have before you run the code. Eg you are declaring a variable status4jest but using a different variable called staus4jest and Excel will not complain unless you use Option Explicit.
Declare return types for your functions.
Format your code so it will be easier to read. Use space before and after statements. Comment everything! You have done some, but make sure a beginner can understand. I will edit you code as an example of indentation.
Debug! Step through your code using F8 and make sure all variables contain what you think they do. You will most likely solve your problem by debugging the code this way.
Ask for help here on specific problems you run into or how to solve specific problems, do not send all the code and ask why it is not working. If you break down your problems into parts and ask separately, you will learn VBA yourself a lot faster.
A specific tip regarding your code: look up the Split function. It can take a string and make an array based on a delimiter - Example: Split(tekstwsadowy, ",") will give you an array of strings, with the text between the commas.
Did I mention Option Explicit? ;)
Anyway, I hope this helps, even if I did not solve the exact error you are getting.