Date Formats In .NET?
Mar 7, 2008
Is there any way to make VB.NET to accept for all Date Formats as in VB6.0...I'm upgrading VB6.0 applications to VB.NET... Here I'm finding the Functionality difference due to VB.NET feature which goes for System date Settings.I tried using CultureInfo. But it also specifies only one format at a time..removing this functionality difference
Explanation : IsDate("MM/DD/YYYY") Returns False if the system date setting is of "DD/MM/YYYY"
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Feb 4, 2010
Using OLE and Jet, you may receive errors when saving system dates and times to databases in different regions.Consider what happens when saving dates and times returned using the Now() function in Canada or the US: the date string "#2010/02/03 08:59 AM#" will save fine. If using 24 hour time, the string "#2010/02/03 08:59#" will also save fine.
If you change your system region to Spanish (Peru) or Spanish (Mexico), the ante meridiem changes from "AM" to "a.m." (or "p.m."). The date string becomes: "#2010/02/03 08:59 a.m.#"Note that this will NOT save correctly to the database and throw a System.Data.OleDb.OleDbException. The workaround we use is: Public Function clean_date(ByVal strDate As String) As String Dim str_buffer As String
[Code]...
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Aug 19, 2010
I have a program (below) which runs an SQL query on an Access database to bring back records based on the date a user selects. This issue seems to be that US date formats are the only date formats that SQL queries accept. I may be wrong, but this is my understanding. All my dates in the database are in EU date format (dd/mm/yyyy). What happens when i run my code is that I can not access a record with the date of 08/05/2010 unless the input date is 05/08/2010.
[Code]...
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Feb 4, 2012
I'm running Microsoft Visual Basic 2010 Express on Windows 7, using a Regional Setting set to New Zealand.
When I enter a date in a NZ format (d/mm/yyyy), the IDE highlights the date and tooltip reports date constant not valid. But it is valid for NZ! Meanwhile, the IDE happily accepts dates in the US format.
I would have expected VB to look at my PCs regional settings and set this as the default format. What is wrong here? I have reinstalled the application, but still have the same problem.
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Mar 11, 2011
I am throwing some data out into Excel and am having some formatting troubles. I have 5 columns (date, time, a long number I don't want displayed in scientific notation - text is fine, text, text). I can get it all working with numberformat, however I have to do them different ways.
Date works this way cell.numberformat = "m/d/yy" and it formats it to say 3/1/11
Time works this way cell.numberformat = "h:mm AM/PM" and it formats it to say 8:07 AM
For the long number cell.numberformat = "@" and it doesn't change the format and it gets displayed in scientific notation
BUT if I use cell.style.numberformat = "@" it works as it should, but it messes up all of the date and time cells. Apparently when you use style.numberformat, it doesn't just apply to the cell you're working with. If I try using style.numberformat with the date and time formats, they don't change and are entered as if I didn't change the format at all.
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May 20, 2010
Dim newver As FileVersionInfo = FileVersionInfo.GetVersionInfo(url...)
I tried the above vb code to find the version of MyProgram.exe and i get an error URl formats are not supported.
How do I get the version of MyProgram.exe on my website?
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Jun 9, 2010
although this topic has been posted for many times, I still can't figure out how to copy multi formats in clipboard.For example, I have a class called "Meta" and it contains data of a drawing. So if someone copy it to the clipboard, it should contains the original data of the class in a custom format called "drawing", a metafile of the drawing and a bitmap in case some app can't read metafiles. How exactly can I do?
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Jan 16, 2011
I wish to avoid duplicate files using content based in any drive. Files may be at any formats . I dont know wat algorithm s used for fast search and how to compare all data formats.
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Sep 11, 2010
I am completing a project for varsity and have done a lot of research on this topic but I can't seem to find the solution that I need. I am using Visual Studio 2005 and .NET Version 2.0. Here is the formatting they want me to use for the Cost Price textbox:"In your form, it should not be possible for a user to enter a cost price of 123.456 nor $123.45 (since we work in Rands and we also dont want to store the $ symbol nor do want the user to type a decimal point or a comma). Make sure that the cost price field has the following format: R ###. ## (where a user only has to enter the numbers)."
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Jul 20, 2009
I have this database with different kinds of Date formats. I can have:
01 Jan 2009
Jan 2009
Q1 2009
2009
How can i Recognize witch date format it is? And if i have found it out, How can i split it on the space?
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Mar 23, 2009
I looking for right code to proportional resizing images in different formats in this peace of code. I would like when this will go through folder to folder.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
For Each File As String In Form1.rt.Items
Dim foundFileInfo As New System.IO.FileInfo(File)
Dim a As String = tB1.Text & "Gallerymanje" & foundFileInfo.Name
Dim b As String = tB1.Text & "Galleryvece" & foundFileInfo.Name
My.Computer.FileSystem.CopyFile(File, a, True)
My.Computer.FileSystem.CopyFile(File, b, True)
Next
Close()
End Sub
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Mar 3, 2011
I'm trying to write text to a file using the following code, but I got the message :
"URI formats are not supported."
Private
Sub
cmdSave_Click(ByVal
sender As
System.Object,
[Code] .....
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Nov 29, 2011
I am a little programmer in .net. I have a problem with opening flv files in my system. I want to make a software in .net which can open these files. If these files could be converted to wmv or any windows supported software I could open them & to be glad for new coding. Is this possible?
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Jul 2, 2009
I want to play all sound formats in visual basic
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Jul 2, 2009
I want to play all sound formats in visual basic pocket pc.I'm using visual studio 2005 . net
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Oct 15, 2011
I would like to ask if you guys know how to convert 1 to 00001? For example, I have an item in my database with an ID of 00001. When I add another item again, it must increment already to 00002. But when I try adding one, the next ID saved is just 2. The zeros aren't on the left side.
The code is shown below
da = New OleDbDataAdapter("select * from booklet", con)
cb = New OleDbCommandBuilder
dt = New DataTable
[Code].....
The output in the database after the 00025 is 26 up to 50 only. If I add another again, it's just another 51-75 only. I can't seem to save it on a format like the 1st series of ticket number that I've added directly on the database with the format of 00001-00025.
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Mar 29, 2010
Imports System.IO
Imports System.Xml
Public Class Form1
[code]....
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Feb 22, 2012
If mystringvar length is less than 10, it gets spaces padded as expected. If myStringvar length is greater than 10, it is still displayed in its entirety and results in everything after being pushed out of their proper place. Is there something in the formatting codes that I can include to ensure that only 10 characters would be displayed? I could write my own function for dealing with it, but I'd like to avoid as much custom coding as possible, ya know?
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Apr 22, 2011
I am working on a program. I've got the following
Private Sub frmTabel_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated
Dim strHoofding As String
strHoofding = "Geleend bedrag : " & _
strRechtsUitgelijnd(Format(glngBedrag, "‚¬ #,##.00"), 15) & vbCrLf & _
[Code] .....
What it should do is placing the four formats but I am only getting result from glngBedrag'
Like this: [URL]
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Aug 3, 2011
I have a lot of keyboard keys stored in different formats. For example, "Up" may be stored as a string, as a decimal (200) or as hex (C8). I need to convert all of this different representations to strings so they can be easily understood by the user, and then back again when I save them.When I capture the key press using the KeyDown event, I can grab the decimal value from KeyEventArgs.KeyCode, which can easily be converted to hex if needed.
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Jan 9, 2009
I don't know if this forum is the appropriate place for the question, but here it goes.I need a hand of someone who knows "iTextSharp" - it was created mainly to build PDFs, but I am using "PdfReader" function to retrieve all the plain text out of existing PDF files, in my VB.net project.
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Mar 2, 2010
I have a custom business object which overloads the .ToString() function. It also implements IFormattable.ToString, so I can define my own custom formats.This approach seems to work everywhere in my app, except .rdlc reports. For example, I have a text field on a report with the following expression:
=Fields!MyField.Value.ToString("lr")
"lr" is a custom format I have created. When running the report I always get #Error as the output. I've placed breakpoints in my .ToString function and stepped through the code as the report is running, and I know the function is returning the correct value, but the report just doesn't seem to be capable of receiving and displaying it.
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Jul 1, 2010
I know that you can create custom formats for the DateTimePicker control, and I've googled this but is there any way that you can allow a user to only select Sunday dates in a Month with this control?
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Sep 6, 2010
What international organisations exist for agreeing a standard or standards for communications, file formats and so forth?I know for instance you can apply to a company like.>>URL}..to get a barcode.
For more see.>> http://www.google.co.uk/#hl=en&source=hp&q=how+do+you+get+a+barcode&fp=9b029eaa092cce63
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Mar 5, 2009
Within Control Panel -> Regional and Language Options, there is a Formats tab, with a drop down of all possible language formats. I wish to retrieve this list using VB.NET. Could anyone point in the direction of which Windows API call to use?
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May 2, 2011
I have 2 tables : product (as parent) and sales (as a child).
[Code]...
product_id at the product table is pK for product table. transaction_id at the sales table is pK for sales table . product_id at the sales table as fK, which a reference to the product_id of product table All my tables are stored in the dataset. How do I get the data from these datasets can I view on the DataGridView with a different layout formats, as follows.
[Code]...
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Sep 24, 2009
I have a variable which I called ElapsedTime. I press a button and it displays the time in seconds since clicking the button, into a label . I did it with HTML
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
LblElapsedTime1.Text = ElapsedTime
ElapsedTime = ElapsedTime + 1
End Sub
Private Sub BtnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnStart.Click
Timer2.Enabled = True
End Sub
This updates every second a bit like a simple stop watch. Great so far, because I do need the elapsed time (in seconds) for later use in my app. However, whilst elapsed time is being displayed in this label on the screen I want it to be shown in HH:MM:SS format. How can I convert it into a new variable " ElapsedTime2 " so that I can show it in the desired format yet still retain my original " ElapsedTime " variable for later.
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Oct 23, 2010
I am trying to add formatted text to a rich text box...
For instance, I want to add a heading as bold ("HEADING: ") and some data after it as regular ("REGULAR Data")...
I'd like to have a couple functions to perform the action.
When I use the below functions to add txt to a single rtf box, I get lines in either all bold or all regular. It doesn't seem to keep the font formatting after it adds text..
Public Function AddRegtxt(ByVal RTC As RichTextBox, ByVal Txt2Send As String)
With RTC
.SelectionStart = Len(.Text)
[Code].....
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Jan 11, 2010
Every single time that I want to copy and paste the code that's been color coded, I have to sign into MSDN, choose Insert Code Block, and then Paste my VB.NET Code, choose VB.NET, Click Preview, and Copy and Paste it to an HTML Page, I Want that thing that color codes my VB.NET Code, in order for me to share my work online... I don't want to have to keep comming on here and doing all that just to get the HTML Version of my VB.NET Color Coded CODE..Do you understand what I'm asking...? Where can I get software or HTML that will color code my VB.NET so that I can Copy and Paste it to SeaMonkey's Composer page.
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Nov 23, 2008
Q1)My ASP.NET VB Script will write long writings - like many thousand words into my Access DB but i have previously had problems with the text containing characts such as '.Is there a way of inserting such?
Q2)When I read a database field in consolidates it into my string variable on a single line. What variable type should I use to have it maintain the line spacing and stuff.
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