How File Format Conversion Works
Feb 9, 2011Need explanation on basics of the file format conversion in VB.net. I absolutely don't know anything about the file format conversion, so a starter here.
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Conversion Of A Text Data In String Or In A File Into A Simple Byte Array[ ] Format
Aug 27, 2009I'm new to .net. I would like to know how to convert a text data in string or in a file into a simple byte array[ ] format.
View 3 Replies.net 2010 Format Conversion?
Feb 2, 2011I'm creating a simple personal calculator, it only has 1 textbox and 1 button.my code is:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox1.Text = Val(TextBox1.Text) * 6.2
End Sub
Create Date Format Conversion?
Apr 25, 2012In my windows application i am converting the system date format using ow.date.tostring("dd-MMM-yyyy")it is converting in some systems which have system date format mm/dd/yyyy otherwise i am getting errorso for this i am changing the date format in system regional settings in clients systems manuallyi want to convert date format without changing the date format means if the system date format what ever it may be the date format have to convert
View 2 RepliesDatetime Format Conversion Invalid String
May 9, 2012I have asked this question before and used the soln but for some reason it just does not work this time around. Hopefully someone else can see the error/missing element. Iparse a date that is in string format and would like to convert it to a datetime format but cannot figure out how to do this. The date appears as such:
[Code]....
Creating A Website - Put It Through A Conversion Process That Converts The Software To A Format?
Sep 2, 2011I am planning to create/write a new website. I don't have much web design experience.What I wanted to know is, can I create a webpage using visual basic .net? If I design the VB forms can I put it through a conversion process that converts the software to a format that can be hosted on a web server.
View 4 RepliesVS 2008 Date Format - Conversion From String To Type Not Valid
Sep 13, 2010I want to to make date format dd/mm/yyyy with access 2003
Dim strdate As string="22/09/2010"
Dim dd1 As New Date
dd1= strdate
I get : Conversion from string "22/09/2010" to type 'Date' is not valid.
Conversion Errors To A MYSQL Database - Converting A String To A Datetime Format
Jan 5, 2010I'm having a problem converting a string to a datetime format. the string is depicting an hour, for example 08:00, but in the mysql database it stores that as 2008/00/00 00:00 any idea how to solve this?
[Code]
XML File Parsing Works On Win 7 But Not On Win XP?
Feb 18, 2011I'm writing an application in VB.net 2010, using Visual Studio 2010 Pro on a Win 7 Computer. The test code works for me correctly. However when I ziped the project folder and sent it to a friend (who is using Visual Basic 2010 on an Win XP Computer), it did not work correctly.
While runing the program in debug, we found a section of that code reads an XML file to construct an object provides a different results on the two computers. I'm not sure why the same code would parse parts of same XML differently. Most of the XML parsed correctly on both computer, just a couple of sections provides the incorrect result on the XP Computer using VB 2010 Express.
Sample of XML that reads differently:
<players>
<min>2</min>
<max>2</max>
[Code]....
Batch File Works When Ran Directly But Not From .Net?
Sep 2, 2009Im running VB.Net 2005.Inside of the program I use the line ystem.Diagnostics.Process.Start("program_) to open multiple programs. For all but one of them this works perfectly. This erros when I try to run a batch file using. System.Diagnostics.Process.Start("C:xx.bat") the batch file opens but then throughs a number of unreconizable java errors follow.
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[2008] Decompressing A Zip Works But Where Is The File?
Jan 20, 2009First of all I am not a really experienced programmer, sorry for that. I try to do my best.So far my application is succeeding: it can create a directory for itself download a file from the internet, rename it to the matching unique id for the user, replace the file and backup the old one.
THe problem I now have that the file to download is 22mb, with .rar it's only 3mb. Zo I tried to zip it (also worked) but now I need my application to decromress it. After a lot of search I found this method from MSDN:
[Code]...
Watermarking Code Works But Not If Used In Codebehind File?
Nov 1, 2009Puzzled why the same Sub Page_Load code will not work if used on the codebehind file. Current code works fine if used directly on the aspx page,but as soon as i try placing the same code in a codebehind file the images will not show at all. Will post code sample if requested.. The way the code is setup thumbnail page opens a new page that displays larger image with watermark. the watermark page only contains code that creates the watermark for the larger image page.
View 7 Replies.net - Opening XLSX File Via OleDb Works In WinForms But Not Always Via ASP.Net?
Apr 18, 2012I've built a simple library to import data from XLS/XLSX files. The code runs perfectly in my WinForms app but occasionally throws exceptions when I run it from ASP.Net. The "occasional" part seems to based on file size. My test file is about 16,000 rows and 18 columns totaling about 4MB as an XLSX file. If I drop rows (down to about 12,000) it works or if I drop columns (down to about 12) it works or certain combinations of these (14,000x14, etc) it works. This leads me to believe that I'm possibly running into a memory constraint somewhere. Below is the distilled code that's not working:
Dim dsn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=""c: est.xlsx"";Extended Properties=Excel 12.0"
Using Con As New System.Data.OleDb.OleDbConnection(dsn)
Con.Open()'Exception thrown here
Con.Close()
End Using
The exception that I'm getting is:External table is not in the expected format Searches for this all talk about getting the DSN correct and since it works on the desktop I know I've got that right.My test machine is a Windows 7 64-bit with the Microsoft Access Database Engine 2010 Redistributable - 32 bit installed. (My machine has Office 2010 32 bit installed which is why I have the 32-bit ADE installed, it won't let you install 64-bit.) I've set my IIS app pool to allow 32-bit applications which I needed to get ADE to work in the first place. I'm running the v4 Framework and as far as I know my IIS settings are pretty much standard.Like I said, the code works every time when I run it through a WinForms app but occasionally fails through ASP.net on the same machine.
Creating A Bat File And Executing Directly As A Command And Neither Works?
Dec 10, 2008I am trying to execute Plink from a Windows Service. I have tried creating a bat file and executing directly as a command and neither works. I the bat file it acutally initiated the command but it didn't execute, just sat there till I killed it. in a bat file
[Code]...
Site (which Works) For Uploading A File Using Express Edition 2008
Nov 1, 2009can you suggest me a site(which works) for uploading a file using vb express edition 2008.it should be there on the site when i download it.
View 5 RepliesLink From Button - When Sheet1 Is Selected, It Works, But When Sheet2 Is Selected, Not Works
Jan 5, 2012I have a spreadsheet with this code:
'insert link
sheet1.Hyperlinks.Add(sheet1.Range("P1"), "http://http://www.vbforums.com", "")
the code of the button (ribbon)
[CODE]...
When I press the button, it connects to the web site. when the sheet1 is selected, it works, but when the sheet2 is selected, not works, why? the path is sheet1,What's wrong?
IF Works But Loop Required - Huge Network With 20+ File Servers All With Data Spread Out Across Them
Mar 4, 2011My app is a fairly simple and im sure with the right knowledge this would take 2 minutes.. but sadly iv been at it for hours. So my scenario here is a huge network with 20+ file servers all with data spread out across them it can take hours to find the folder required.
Hence this app.. so it consist of a input box, progress bar and a button, using FileSystemObject I plan to interrogate a directory to see if a folder exists (folder specified by user input) however it need to check multiple directories, in my old app I used a list box which wrote to a text file allowing the user to add additional directories then using if statements proceeded through the servers.. however they have added that much that my IF's have ran out really because i know it should have been a loop
Imports System
Imports System.IO
Public Class Frm_main
Private Const FILE_NAME As String = "C:directories.txt"
Dim objReader As New System.IO.StreamReader(FILE_NAME)
Dim Lines() As String = IO.File.ReadAllLines(FILE_NAME)
Dim Dir As String
[CODE]...................
Conversion Error On Line 5 Stating 'Conversion From String 'S' To Type 'Double' Is Not Valid
Apr 8, 2009a user will enter a number, n, which ranges from 1 to 30. they will also enter a "P" or an "S" (sum or product). depending on which was selected, it will calculate the sum or product of the numbers from 1 to n.i'm having a conversion error on line 5 stating "Conversion from string "S" to type 'Double' is not valid." [code]
View 2 RepliesText -> Excel Conversion (with Extensive Formatting Required After Conversion)?
May 11, 2012I'm creating a program in VB.net that does the following:At a high level I receive a file in email, put the attachment in a monitored folder, import the text file to excel, format the excel, and then email the excel file to a list of recipients.
Here is my plan:
Completed: Outlook VBA to monitor all incoming email for specific message. Once message is received drop attached .txt file in a specific network folder.
Completed: (VB.net) Monitor folder, when text file is added begin processing
Not Complete: (VB.net) Import text file to Excel
Not Complete: (VB.net) Format Excel Text file.(add in a row of data,format column headers with color/size, add some blank columns, add data validation to some of the blank columns that allow drop down selections)
Completed: (VB.net) Save file.
Completed: (VB.net) Send file to list of recipients.
Obviously the items above that are not complete are the bulk of the work, but I wanted to get some advice on what some of you think would be the best way to approach something like this. The import and formatting of the file are causing me some problems because I just can't decide what would be the most efficient way to do this.
The way stated above. Import to excel -> format Having a template excel that contains all of the formatting already done for me and attempting to transition the data to this document (no clue if/how I can do this). Is it even feasible? Have the template already created and then import the text file to a new excel file, then transition that data to the excel template?
Something I thought about, in terms of formatting the document, was to record a macro of me doing all of the formatting that I'm going to need and then attempt to convert that macro into my vb.net code, but I'm not sure if that will work. I will need to verify that the text file comes in the EXACT format every time correct?
Code That Doesn't Works Runtime But Works Step By Step?
Jun 26, 2010this is my code:
Dim WB As WebBrowser
WB = GetPage("http://speed.travian.ir/a2b.php?z=" + VillageID.ToString + "&c=" + Type.ToString + "&" + AttackParams)
[code].....
FFMPEG File Conversion To FLV
Dec 8, 2009I'm using FFMPEG for the first time. The upload works. The *.avi file is uploaded to the virtual path just fine. When it runs through and attempts the conversion to an FLV file, it doesn't error out - but it doesn't convert the file either. The ffmpeg.exe and pthreadGC2.dllare in the same folder ({virtual_path}uploadvideo). I do see a cmd window flash when the process starts but can make out anything displayed.
Here's my code:
File Upload
Protected Sub Submit1_ServerClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Submit1.ServerClick
If Not File1.PostedFile Is Nothing And File1.PostedFile.ContentLength > 0 Then
Dim GetFileName As String = File1.PostedFile.FileName
Dim fn As String = System.IO.Path.GetFileName(File1.PostedFile.FileName)
[Code] .....
Visual Studio 2010 - .net Application Works With Files Dragged Onto The Exe But Crashes If There's A Space In The File's Path?
Jun 15, 2011I'm developing an application in vb.net. You drag any type of file onto the exe, and a window pops up with some options for the file, then it saves the file to a different location, works some SQL magic, etc. It works great for the most part. The only issue I've found is that if the path of the file contains any spaces, the application will crash immediately with the error window:[URl]..I'm using: Private filename as String = Command$ This is located right inside my form's class declaration, not within a sub/function.Without this line, my program runs fine (although useless, without accessing the file).I've also tried (I think this was it, I don't have the code with me at the moment): Private filename as String = Environment.CommandLine So, in vb.net, is there a way to drag a file onto an exe and use that path name, even if there are spaces in the path name?
View 2 RepliesFile I/O And Registry :: Safe A String Or Byte-array To File In Utf8 Format?
Sep 4, 2008trying to find a decent answer for my question; I do have a utf8 file which I (down)load, manipulate and wanting to save back again.The result always is that the file I produce is not in utf8 format;
Dim fs2 As New FileStream("c: est.dat", FileMode.Create, FileAccess.Write, FileShare.None)
Dim w As New BinaryWriter(fs2, Encoding.UTF8)
[code].....
Copy Opened Database - Application Gets It's Data From A Mdb-file And The Connection Remains Open As Long A Person Works?
May 14, 2010The fact is I'm making an application, which users can install by using a Setup file...once installed the data in the database can be updated by a centralized server. To do this, they can insert a DVD/CD-ROM and export the necessary data towards it. I need to do it that way, because some of the users who really need this data will be using stand alone computers.The application gets it's data from a mdb-file and the connection remains open as long a person works with the application (maybe not the best way to do, but I know :-) )...when the user uses the application, he can perform an export...this exports the .ini-file and pictures (which works fine), but he also needs to export the mdb behind the application...I already tried connection.close() before and connection.open() after the System.IO.File.Copy...but that doesn't seems to work.
View 2 RepliesIDE :: How To Convert Excel To Txt File Conversion
Jun 11, 2009I want Excel data in a text file.
View 5 RepliesFile I/O And Registry :: Check If A Certain File Is In Text Or Binary Format?
Mar 13, 2010how I could check if a certain file is in text or binary format?I'm using VB.Net 2008 Express.
View 2 RepliesBinary File Upload Conversion From Inet
Dec 16, 2011This is the last and most difficult part of my first application conversion from VB6 to VB.NET.
View 3 RepliesVS 2010 Folder Monitor And File Conversion
May 11, 2012I'm unsure if this should be in Office Automation or here, but I opted for here because I'm creating a VB.Net program to handle all of the office automation and my questions are a combination of the VB.net portion and some of the VBA formatting. At a high level I receive a file in email, put the attachment in a monitored folder, import the text file to excel, format the excel, and then email the excel file to a list of recipients. [code]Obviously the items above that are not complete are the bulk of the work, but I wanted to get some advice on what some of you think would be the best way to approach something like this. The import and formatting of the file are causing me some problems because I just can't decide what would be the most efficient way to do this. Having a template excel that contains all of the formatting already done for me and attempting to transition the data to this document (no clue if/how I can do this). Is it even feasible? Have the template already created and then import the text file to a new excel file, then transition that data to the excel template?
Something I thought about, in terms of formatting the document, was to record a macro of me doing all of the formatting that I'm going to need and then attempt to convert that macro into my vb.net code, but I'm not sure if that will work. I will need to verify that the text file comes in the EXACT format every time correct?
Read In A File Into An Array Then Write It To File In CSV Format?
Dec 22, 2010i have a structure of;
name
age
gender
location
then i need to read in a file into an array on the structure above, and pretend this is the file which has 3 people
george
45
m
usa
[code]....
so basically i dont get how to read in a file then put it in the array in that structure then make it into a csv file?and whats the difference between streamreader and streamwriter?
Write A Program That Can Convert .dwg File Into .xml File Format
Aug 12, 2010i am a beginner and trying to write a program that can convert .dwg file into .xml file format.i am familiar with visual studio 2008, vb.net and autocad 2007.my question is what do i need to do or learn to start this project?
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