I'm trying to format a string to represent a date in a specific format using the Format function but it's return odd results.
Here's an example:
Dim s as String = "01/01/2000"
Dim result as String = ""
result = Format(s, "dd-mmm-yyyy")
result equals "dd-mmm-yyyy" (the format string) very strange.
how I can ensure that conversion of a date to a string and a string to a date will give me the same date format.
For example:
Code:
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim d As Date = Date.Now
[code].....
I'm actually only interested in the date part as the label text shows so f is more than I want.But also, the day and month are reversed.
I need to take a string formatted like '010711' (DDMMYY) and put it into format '01-Jul-11'. Ive thought about doing something like string.toArray and then having some conditionals that format from there but am looking for an easier way.
View 5 RepliesI would like to easily validate dates in this format, e.g., 31-JUL-2010 and only this format. Any other format should be considered invalid.
View 3 RepliesIs there a way to do so? Say sometimes I see March 2nd, 1921
Latter I see 2 March 2010.Is there a function GetDate(SomeString as string) as Date?That will sort of recoqnize all those different format and "try" parsing.
i can retrieve the data from the DB and put it in a vector and then, vector in a JTable, to display data in a tabular format in java, all i wanted to know is there any similar way in vb dotnet?
View 4 RepliesI need to accum some data based on whether or not an SSN number appears in the data. I have it in a string, what I need to do is search for a numeric pattern within the string such as:I looked into regex a bit, but I don't have much time to read deep into it (my company needs the program this week) and it seems too complex to grasp in such a short time. What I've came across so far is:
If (rec.address1 Like "###-##-####")
but I don't know if this will filter it out of the string (it can appear with an address attached to it).
I am making a program that shows a data of azimuth and elevation of a radar. Example:
Azimuth = 203.40
Elevation = 3.52
I need that the data will always be two number after the point. Even when the number ends with zero (203.40).But the Double by default removes the zero from the end of the number.
MyRow = MyDT.NewRow()
MyRow(1) = rs2.Fields("Field29").Value.ToString
rs2.Fields("Field29").Value has values like "YYYYMMDD" in a string.how can i convert a "YYYYMMDD" string to a needed date format like 'dd mmm yy' (or any format)
I taken dtp value into date object but the date is displaying like this #12/16/2009#, how to get the date value should be 12/16/2009. Or suppose i took dtp text into a string then i convert string to date like this Date.Parse(string) but it's also showing the date value like this #12/16/2009# but i want date value should be 12/16/2009. How to do this in vb.net.All the Best
View 3 RepliesI am trying to make a filename something like this:
dim Test as string = "name_" + now.toshortdatestring() + ".pdf"
The datestring is like MM/DD/YYYY, which is a particularly bad filename (who want slashes in their file names??)Is there a way to format the date string differently (ie MM-DD-YYYY)?What I was trying to do is tag the file with a date so I could tell when the last time that file was generated, and also keep multiple copies around for archive purposes. Maybe there is a better way and then I dont even need this differently formatted string?
I have a where clause in an old dusty vb.net application [code]...
View 1 RepliesI have this example and it gives me exception "Conversion from string x to dateTime is invalid"
here is my method to validate Datetime. Example Date string : "27/03/1985"
Public Function validateDateColumn(ByRef FieldName As String) As Boolean
[Code]...
I am using the following function to Convert a String variable to a Date. Subtract a day from it and convert the date back to a String. The code goes as follows
[Code]...
If edate has a value 29/12/2011 than the value in expenddt gets changed to a different format and the value in expenddt comes to 12/29/2011 and later after subtracting a day expenddt is 12/28/2011 and than when i convert it back to a String i get the value in asd as "12/28/2012 12:00:00 AM"
[Code]...
Not so long ago, I saw somewhere a solution how to check if string is date in yyyyMMdd format (i.e. if it can be converted to date if written in such format). I can't find it anymore but I think is had something to do with DateTime.TryParse method but I can't get it to work. I can get it to work if string is in dd/MM/yyyy format, but dont' know how to make it with yyyyMMdd format. If I'm not mistaken neither of DateTime.TryParse method parameters is for assigning date format...
View 5 Repliesi have input of 1995 in the texbox.what is code to convert that string to DATE.... with format of Y
View 1 RepliesMy user wants to have textbox fields that don't have any masks but wants those text fields to reformat any text that is entered as mm/dd if it is a real date entered
View 5 Repliesi want to insert a string as date format in mysql table using vb.net.my code is given below.but i always get an error .the string is stored in an array.
mycode
------
Dim sdfsa As String = Convert.ToDateTime(newarray(i + 17)).ToShortDateString().ToString("yyyy-MM-dd")
Dim newdate As Date = DateTime.ParseExact(sdfsa, "yyyy-MM-dd", System.Globalization.CultureInfo.InvariantCulture)
datarw("date_of_birth") = newdate
I have a string coming into my app that is in the form of:
"Fri Sep 21 07:17:46 2008 GMT" or
"Fri Sep []3 07:17:46 2008 GMT" ([] is a space)
The tricky thing is the space for the date. I currently split the string and grab what I need to make a valid VB date.
Code:
'Receiving a timestamp in the format: Tue Jan 23 19:33:31 2001 GMT
'Split it and grab what we need to make a valid vb date
_element = timeStamp.Split
_dateAndTime = CDate(_element(1) & " " & _element(2) & " " & _element(4) & " " & _element(3))
Return _dateAndTime
I'm running into the problem when the date is a single digit because there is never a 0 on single digit dates. So, when I split the string I get a "" for _element(2) and that's bad. I know workarounds to adapt for this, however, my question is: How to implement the String.Format to manipulate this string as is and make it a valid VB date? How to make VB recognize this string as a valid VB date without a prepending 0 on single dates.
example: inside regional date format setting i set "Short date format dd/MMM/yyyy" and inside vb.net program i set "strSQL = strSQL & ",'" & Date(Date.Now.ToString("dd/MM/yyyy")) & "'" ----> working fine. if user changed the regional date format setting to other format like "mm/dd/yy" facing problem during saving record into sql table. error date conversion. It's possible to avoid using computer regional date format from vb.net? or have any other way...
View 2 Repliesi am trying to insert date in dd/mm/yy format in sql table from a textbox but everytime the default date 01/01/00 goes in table.
View 19 RepliesI am working on a project inwhich I want same date format in all project forms. I want to use a form for setting/resetting date format for whole project. whenever I will change date format in this settings form, there should be this new date format available in all forms. how can I implement this?
View 8 Repliesi cant seem to create a datetime object in vb.net with datetime string that's in this format "hh:mm:ss tt MM/dd/yy".The error im getting says its not a recognisable string datetime format.
View 15 RepliesI do encounter interest problem when I am using VBNet2008 and SQL Server 2000. I am developing Window Application and one of the form I am using SQL String with Date between to retrieve specific data from SQL SERVER 2000 Table and it's not working and generated this error message:
Invalid column name strFromDate
Invalid column name strToDate
Here are the overall coding:
Dim sqlconn As SqlConnection
Dim sqlcmd As SqlCommand
Dim DA As SqlDataAdapter
Dim DR As SqlDataReader
[Code] .....
I am manipulating xml with lots of date of birth. XMLs are already loaded onto datatable. The format we need is "dd/MM/yyyy" The dates are messy such as "dd-MM-yyyy" or "dd.MM.yyyy" so I am thinking to write a function that will auto correct on a set of predefined separators to a correct format. so I am thinking to do something like this but of course, this won't just work.i cannot use replace to replace an array. If i can just do that, everything would be fine. Hope someone can point out a way around. [code]
View 2 Repliesi have a string "07.03.2009 17.06.00" that i want to convert to datetime. i have tried
DateTime.ParseExact(Me
.Text, "MM.dd.yyyy HH.mm.ss"
, New
System.Globalization.CultureInfo("en-GB"
, True
))
I need to convert numeric string to date in format dd.MM.yyyy :(
View 2 RepliesMy user wants to have textbox fields that don't have any masks but wants those text fields to reformat any text that is entered as mm/dd if it is a real date entered. They won't be using the year.
View 10 RepliesI Have this date "27/03/1985" and because it starts with days i can't convert it to datetime.
View 2 RepliesI have developed a vb.net application, which searches for different kinds of dates from a document. When i test the app on my Windows 7, VS2010 PC, the dd/mm/YYYY date read as string is correctly converted to valid date format, and then it can perform followingfunctiontstimespan =Date.Now.Subtract(Convert.ToDateTime(DesiredMatch.Value)).DurationIt works fine on development PC. But when i test the application on my client PC having Windows XP, it throws an error 'string was not detrmined as valid date time windows'.
View 4 Replies