Determine If Row In File Is Date
Jun 13, 2011
When scanning a data file of this kind of form:
21/02/11 11:00:23, true, false
22/02/11 02:03:43 AM, true, false
22/03/11, false, false
2011-05-21T12:30:20, true, true
The 2nd and 3rd row are not important. How can you, by scanning a file, determine if a row comprises of dates, particularly when they have inconsistent formats? In the example above, for instance:
1) 1st line is date and time
2) 2nd line is date and time but also AM/PM
3) 3rd line is only date
4) 4th line is GMT format.
I'm not requesting code, but perhaps an algorithm or some guidelines on how to achieve this.
View 3 Replies
ADVERTISEMENT
Jan 4, 2010
how can i determine the file size and the date it was last modified..
i need to compare two files and determine which one is the latest and which one is bigger in file size..
compare a.xml to b.xml..
View 4 Replies
Jul 29, 2011
I have a form where a user can choose an election date. One of the most frequent errors users make is entering the incorrect due dates of reports. Therefore, I am attempting to generate the report due dates in the application using the report guidelines. For instance, reports are due 32 and 15 days prior to the election and 30 and 60 days after an election.
I know the following won't work but you get the jest of what I am attempting to do. I am assuming I will need to break down the month, day and year somehow before I subtract or add the days to the date to get the actual report date.
[code]...
View 3 Replies
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]...
View 11 Replies
Sep 17, 2011
how to manipulate the dates to determine which date will be 30 days more then the datetime control I have on my form. i need to take the chosen date from the DateTime control, and determine what date it will be in 30 days. Eventually I will use this process to search through the database to print monthly reports.
View 4 Replies
Jul 16, 2009
I have a "ClickOnce" application and on the Splash screen I display the Version. I am also displaying the "CreationTime" (see below) that I thought was when the Build or Publish was done. Today I realized it is displaying the date/time when the application is actually installed on the PC. How do I pull the date when the this version was compiled, Built, or Published? I really do not care which -I just want a constant date the sticks with that version. I'm using VB 2005.
[Code]....
View 7 Replies
Oct 22, 2008
I'm trying to compare the modify date of a file vs the current system date. I've found an MSDN article describing how to get the modify time of a file:
Dim infoReader As System.IO.FileInfo
infoReader = My.Computer.FileSystem.GetFileInfo("C: estfile.txt")
MsgBox("File was last modified on " & infoReader.LastWriteTime)
This gest the Date and Time, but I want just the Date not the time.
View 6 Replies
Apr 26, 2010
I wrote some code to share files throughout my network. The thing is that i don't understand how to determine how much the client has sent already and how much is left. I have posted my code below so you guys can see what I'm talking about.[code]...
View 1 Replies
Aug 9, 2010
I'm using the coding below to determin if a certain file exists on the hdd. However there is an error on this line: If FileExists("C:myfile.txt"))="False" then msgbox "False"
it gives me the following error message:End of statement expected.
what am I doing wrong?
[Code]...
View 1 Replies
Apr 28, 2012
I want to scan a directory and see what files are NOT bmp image files. As the file extension can lie I need to interrogate the file itself. I found some code here [url]...?ID=112 that does exactly this however it was written for VB5 and is 13 years out of date! I tried compiling it however VB 2010 baulked and I don't have the expertise to make it work.
View 1 Replies
Jul 31, 2009
How can I programatically determine if a file with a certain extension (XLS, for example) is really an Excel file and not a VBS file, for example, that has the XLS extension?
View 1 Replies
Apr 16, 2012
I'm working on a project and need to determine the size of a text file. I know that I could just count characters but the file will be several MB's large.
View 1 Replies
Jul 8, 2010
So we're having this problem. A user goes to upload a file, and if it's above 10MB, it just kind of times out the page, and clears, and no good error is thrown to describe what happened. Ideally, we would like to examine the file size when the user chooses the file they want to upload but I don't know if this is even possible. Our framework is built with ASP.NET, VB.NET, and Javascript (and ExtJS 3.0), and it runs in IE.
View 6 Replies
May 1, 2006
I encountered a serious problem while working withclipboard class in VB.NET.I want to simulate cut-copy-paste operation withmy application and Windows Explorer.User can copy files from Explorer and paste it intomy application & vice-a-versa.My question is-How can I determine if user has copied or cut the filesfrom Windows Explorer? I want to differentiate cut & copy.I am using >> My.Computer.Clipboard<<.
View 7 Replies
Jun 21, 2010
I created a survey in vb.net where results are stored in an Excel file. Locally I can access and update the data of the file, but if I put online can not correctly access the excel file. How can I determine the absolute url of the file so, when a user submits the answers they can be inserted correctly in the excel file?Currently I use this to determine the location of the file: Dim LocalizacaoFicheiro As String = String.Concat(Server.MapPath("."), "RespostasQuestionario.xlsx")
View 3 Replies
Jan 25, 2010
I would like to check if a URL exists -- without requesting the file. The program needs to check if a PDF or Excel spreadsheet exists at a particular URL. If it does, it might want to download the file, but it should not download it every time.
I currently use the WebBrowser.Navigate method to do this, but it always downloads the file. But I don't want to actually download the .pdf or .xls file, I just want to determine if the URL exists.
View 8 Replies
Jun 13, 2009
Does anybody know of a way to determine the current name and link to the program on a computer currently as default associated with a file extension? For example, if you have a "*.jpg" file, it most likely will open in WINDOWS PICTURE GALLERY under Vista on default. If you associated another program with the "*.jpg" extension, then this file will be opened with tat program instead. "*.jpg" is here only an example!
View 3 Replies
May 27, 2010
I am currently using the FileOpen method wrapped in a try/catch block to determine if a particular Excel file is currently in use or not.
When my app tries to access the file, I would like to be able to notify the user who it is that already has the file open. If I try to open the file in excel while it is in use, the message that Excel provides includes the network login of the user that has the file open. Is it possible to get this information via code so that I can tell the user of my app the login of whomever already has the file open?
View 1 Replies
Jul 23, 2011
I would like to be able to create a new document, add formatted text to it, and then just click save.
View 19 Replies
Feb 11, 2011
Is there a way to get the time length of an mp3 in VB.net? I have TagLib, but it doesn't seem to have any functionality for it.
View 2 Replies
Sep 9, 2009
How to determine the progress while copying afile in VB.net
View 4 Replies
Jun 14, 2009
I want catch excel file close event
Like this :
if Xapp.exit = true then...
View 5 Replies
Jun 1, 2009
Is there a way to get the program that is locking a file, in vb 2005?
For instance, when I try to open a file that is already opened by another program, can I get the name of the process/program that has locked this file?
View 1 Replies
Oct 30, 2008
I need to create a PDF drawing of our products with dimensions filled in, based on template files. After the user selects the proper template file for the desired product, a window should pop up that prompts the user for the necessary dimensions, such as width, length, etc. Then the program would fill in all the fields on the template form with the proper values. Some fields would just be filled with the exact values that the user enters in, but other fields may require a calculated value based on the entered values. ie. Overall width = nominal width + 6. So somehow I need to figure out how to make the template hold the equations. Can anyone offer me some guidance on how to make this work the way I described? Can iTextSharp determine if a PDF file has fields in it? Can it loop through all the fields & get the field names?
View 18 Replies
May 27, 2011
I am curious. If I am using a combination of streamreader and streamwriter is there a way that I can have a stream written only if File X has been modified? [code]
View 1 Replies
Jul 2, 2009
I'm trying to use Adobe's command line parameters to launch a PDF file with a user's search term passed in automatically. Unfortunately, Adobe's syntax for this command requires me to start Acrobat.exe (or AcroRdr32.exe) and pass in parameters, including the PDF file name.I have users that might have any version of Adobe Acrobat from 5.0 up, or they might be using Adobe Reader version 5.0 and up. I know when I double-click a PDF file, Windows has an association with that file that points to wherever Acrobat.exe (etc...) is installed to launch the program. How can I get access to that information?I've looked in the registry at"HKEY_CLASSES_ROOT.pdf", but don't see much in there that would lead me to "c:Program FilesAdobeAcrobat 8.0Acrobat.exe" or wherever the program is installed. Does anyone know how I can access this information?
View 4 Replies
Sep 9, 2011
Is there a way I can determine if a file is an ascii type vs a binary type without making a list of file extensions to check against?
View 3 Replies
Oct 29, 2010
I need my app to determine between Win XP, Vista and Win 7 so It can deside which path to save txt file. I know this can be solved by running program as administrator and be able to save in whatever path you like but it would be good if the user didnt have to. Vista and win 7 suxx in this regard although win7 is great otherwise, use it myself.
Anyways would be nice if it was as simple as:
OS = humhum
and the if else
but probably not TT
View 9 Replies
Jan 10, 2009
how i can able to determine if the user intended to delete a file. What im going to do is this application will be placed in a certain folder together with some files. And this program will determine if the user inteded to delete a file within the folder.
View 2 Replies
Dec 14, 2010
If we have sample class to store some config data, all is ok, we can save and load it to class.
<XmlRootAttribute("Configuration")> _
Public Class SeriazableClass
#Region "Options"
[code]....
View 1 Replies