Loading Big Files To Ram OverflowException
Jan 2, 2012It looks like an array of byte only uses a 32bit length and cant hold more than 2GB why is it not a 64bit length when the project is 64bit, how can I load bigger files?
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OverflowException Was Unhandled
Aug 8, 2011OverflowException was unhandled
View 8 RepliesSystem.OverflowException - 'Arithmetic Operation Resulted In An Overflow'
Dec 16, 2009When I Run my app, I get a pop up box saying this 'Arithmetic operation resulted in an overflow'. Here is the code;
[Code]...
how to fix this issue?
Dialog Box For Loading Files Same As Savefiledialog?
Sep 15, 2009Is there a dialog box for loading files, the same as the savefiledialog? I know how to load a file once I know it's name/location, but how do I open up a box to allow my user to select a file from the drive?
View 6 RepliesReflection - Loading XML Files Into .Net Structures?
Aug 20, 2010I have many, (15-20) different XML files that I need to load to VB.Net. They're designed as they would be in a database; they're designed in Access and bulk exported into XML files. Each file represents a different table in the database.Now, I need to load this information into VB.Net. Initially, I'd love to use DAO and access the MDB directly via queries, but this won't be possible as I'm making sure the project will be easily ported to XNA/C# down the road. (Xbox 360 cannot use MDBs, so I'd rather deal with this problem now than down the road).
So, I'm stuck now trying to figure out how to wrangle together all of these XML files together.I've tried using Factories to parse each one individually. E.g., if three XML files contain data for a 'character' class, i'd pass in an instance of Character to each XML factory and the classes would apply the necessary data.I'm trying to get past this though, as maintaining many different classes with redundant code is a pain. plus it is hard to debug as well. So I'm trying to figure out a new solution.
The only thing I can think of right now is using System.Reflection, where I parse through each member of the class/structure I'm instantiating, and then using the names of those members to read in the data from that element of the XML file.However, this makes the assumption that each member of the structure/class has a matching element in the XML file, and vice-versa.
VS 2010 - Loading Txt Files Into A Textbox?
Dec 29, 2011I have a folder in my computer with several txt files, I need to know if is possible, how loading each files in alphabetical order in a textbox.
For example this list of txt file :
1-allvisualbasiccodes.txt
2-bbcode_php.txt
3-commoncode.txt
I want load these files with a timer one each time interval.
Loading JavaScript Files Into Rich Text Box?
Apr 16, 2010I am trying to make an application that will load any Javascript file into a rich text box.
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VS 2010 Loading Comma Delimited Files
Apr 19, 2012I use to code looooong (98ish)ago in Visual Basic 5 but I haven't touched it since 2000. Well now im back and I must say i quite rusty!!Here is what I need help with. I've successfully created a save command for a Comma-Delimited txt file. My problems come from when I try to load the file, I can load the first line just fine. But multiple lines are going to be an issue. I don't quite understand how to tell the program to go through each line.[code]
View 1 RepliesVS 2010 Loading Files Through Application.startuppath?
Dec 22, 2009call form1.axshockwaveflash1.loadmovie(1, application.stratuppath + ("swfsStart.swf"))
but when i publish the trainer, and open it through either the clickonce application, or the setup, it can't find the swfs folder to get the .swf files. Therefor the trainer will not work.
Errors In Loading Files That Are Already Open / Countermeasures Have So Far Failed
Apr 4, 2011In the game I'm making I have a background worker thread simulating the game and constantly outputting data to a file.I want to be able to access that file while simulation is going on. I understand that you can't access the same file simultaneously in two threads so I don't mind having the program (say on a button click) wait until the simulation isn't using the file.I can't seem to do that though! Whenever I either save or load the file I have a bolAccessingFiles variable which I check to make sure things don't happen simultaneously. I change the value to True just before opening any files and False just after closing any files.
This doesn't seem to work though. It seems as though the computer will still be using the file in some way even though the code has kept going. I need that when I next access the file I have a stronger way of checking if the file is already in use, and if so make it wait."The process cannot access the file 'C:UsersDavidDocumentsVisual Studio 2010ProjectsGameGameinx86Debugoutput.txt' because it is being used by another process."
File I/O And Registry :: Loading Files Into A List View
May 23, 2009I can't find any way of loading all files with e.g (.txt) from a specific directory: C:UsersChristianDocumentsMy Logs I use Visual Basic 2008 .NET, this is how I try to get it:
1. When the form loads it should retrieve the full path and title of the files and then put them in the List View control.
2. When the user marks one file in the list view and then clicks a button the text content should be displayed in a multi line textbox.
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File I/O And Registry :: Loading RTF Files In RichTextbox Control?
Jan 12, 2009I need some help loading RTF files in a RichTextBox Control. The RTF file i have has a lot of textbox and some graphics. I tried several methods, but i cannot load the RTF file correctly.Here is what i have so far:
Code:
Private Sub btnLoadFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadFile.Click
Dim fn As String
Try
[Code]...
I suspect that the LoadFile method cannot read the TextBoxes in my RTF file, or maybe i'm missing something. Attached is the file i'm working on.
Loading Text Files Into Oracle Using Creation Date?
Apr 12, 2011I've written a loading program that writes text files to our database. The text files are dumped by another system every 2 hours onto on a shared network drive at my work. Here's the problem though - the files don't have a date/time stamp within them. I've been getting the date for each file from the creation date. That works okay, but when I've written loading programs in the past, I like to move the loaded files into a folder called "Loaded Files". That way, I can quickly see visually how many files I've loaded vs how many have not be loaded.
The problem this time, is that if I were to move the file into another folder, the creation date changes...a lesson I learned when I copied all of the files into a directory on my C: for testing. They all had the same date/time stamp!My question is, what's the best way to handle this? I don't want to move the files after loading them if it alters their creation date. I mean, what if I have to go back and load one for some reason, the date will be lost forever. I also don't want to write something into the software that has to check a file each time before loading it to the database.
TreeList Does Not Display Data Until Finished Loading Files
Jan 6, 2012First off the Treelist does not display data until it is almost finished loading the files. I tried to refresh the treelist but it still does the same.
Private Sub BtnBrowse_Click(sender As System.Object, e As System.EventArgs) Handles BtnBrowse.Click
Try
If FolderBrowserDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then
' List files in the folder.
[Code] .....
VS 2010 Loading Files/Folders Treeview Combobox
Mar 23, 2011I'm loading a folder (path), which contains folders and files, in a treeview according the combobox-text.
When I load the app. the combobox is filled with the paths. I'm using the SelectedIndexChanged to load the treeview. Everything works.
The issue is that it also starts to load the paths the treeview also gets loaded (slow), but it should only load when I select an item in the combobox.
I tried comboboxselectedtextchanged etc, but without any luck. Besides that loading the files and folders is slow.
"System.OverFlowException" When I Try To Create A New Datatable?
Feb 19, 2010I have an application where there is a sub that creates a new datatable object. This line of code will randomly generate the following error;
View 4 RepliesText Editor - Loading Multiple Large Text Files
Jul 10, 2010I'm fairly new to VB.NET, and I'm working on a text editor with a tabbed interface. I deal with large text files. Should I have each tab / text document open up in a new thread or a process? I basically want the entire application to always run fast as the text editor is just one part of it. If I have several large text files open I don't want the rest of the application slowing down a bit.
View 2 RepliesMultiple UI Thread - Show An Animated Loading Gif Image Till Data Loading Is Completed In All Text Boxes
Jul 13, 2009I have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesLoop To Stop After First Data Loading And Continue On To Second Data Loading After When Button Is Pressed
Jun 2, 2011an application i developed using vb 2008 express, to fill a web form with data from an access database, one after another when a button is clicked hasn't given me what i expected. the loop was suposed to stop after filling web form with the first data on clicking a button and continue to fill the webform with the next(2nd) data from the database on clicking the button again. Below is the code i wrote
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[Code]....
Control To Display Docx (word Files) And Xls (excel Files ) Inside Form?
Jun 20, 2010which are the control used to display word files and excel sheets inside vb.net forms ? (i have already added reference lib.)
Platform: Vb.net (framework : 3.5)
language : visual basic
Forms :: Opening Files - Allows Users To Select Picture Files And Then Categorize Them Into Folders
Jul 9, 2009I'm currently working on an application that allows users to select picture files and then categorize them into folders. Now I'm having two issues that are probably simple to fix but I only have a year of experience with vb so I just don't know how to fix them. The first and biggest issue is that once the user has selected and categorized a file, I want the program to select the next file in the folder that the first file was moved from. This way the number of clicks required is minimized. However I have no clue what I would need to do in order to accomplish this. Also, my other problem is that I want to be able to find the indexof a quotation mark but whenever I put it in the parameter it just reads it as a quote.
View 4 RepliesImporting All Files In A Folder (all Excel Files) Into A Single Table In An Access Database
Aug 23, 2011I am trying to import a bunch of excel 2003 files all with A:H columns and they are under the same headings etc. into a table in access 2003 database. This is a module in access im making. Im using a file search to look for every file that begins with Format (which they all do ) to get at all the files in the folder path. is there a more efficient way to do this? somehow select all files in a folder? and import each to the same table in access? The DoCmd.TransferSpreadsheet seeems to take each file path individually so I'm not sure how to get each file name in the folder to import it.
I have this at the moment:
Sub Import()
Dim db As Database
Set db = CurrentDb
[Code].....
.net - Why Setupper Created By Publish Feature Does Not Copy Files To C:/PROGRAM FILES
Jun 10, 2009I have VB project and I tried to use PUBLISH feature.It seems to create nicely some kind of setup program, but the setup program does not ask where to copy files (it does not seem to copy filesto target machine "PROGRAM FILES".)Is this setup program somehow different from usual installers?
NOTE: I want that app files are installed to Hard disk( from USB stick source)Is the signing recommended or necessary? My App is pretty simple, its just using access DB + printer api, should I still sign?
Combining Image Files - Take Multiple Picture Files And Compact Them Into One File
Dec 10, 2009I know this is out there and probably illogical but I was wondering if it was possible to take multiple picture files and compact them into one file.... and then retrieve them from the program later? Way to combine any amount of image files into one file
Module Module1
Sub combine()
Dim img1 As New Bitmap("i1.jpg")
[CODE]...
Forms :: Windows App To Upload Files To Different FTP Sites By Picking The Files From Different Folders?
Oct 11, 2011I wrote windows app to upload files to different FTP sites by picking the files from different folders.A log is displayed by appending text to the textbox at every step.Textbox is ReadOnly.
Issue:When app is loading a bf file to FTP and if user tries to scroll the textbox,the form is hanging and going to Not Responding.?
Pure Text Files / Handle Special (german) Characters In .net Vs VB6 Old Files?
Jul 17, 2009i have an old VB6 system that generates plain text files. When this old system writes "A" into the file, it writes (hex) "41". For an "ä" (a-umlaut, special gernam character), it writes (hex) "E4".
Now i have to process files like this in VB.Net. when i open such a file in the IDE, it displays correctly "ä" (But not always!). To see what i mean, please open a notepad and create a new file "ae.txt" with content: äöü. Now your file contains exactly 3 bytes: (hex) E4 F6 FC.
But when i write code like
Dim strTest As String
strTest = File.ReadAllText("ae.txt")
Debug.Print(InStr(strTest, "ä"))
i get 0 - so i cannot find back the "ä" - what do i need to do, to find it? And 2) for compatibility reasons, i have also to be able to create such files. How to do that? Seems the different encoding types do not work as i think.
VS 2008 List Files In A Directory + Write The Result In A Text Files?
Dec 14, 2009I am trying to create a program which will read the files that exist in a directory, and then write in a text file the specific information (full file name, date created)i have found several code in the site but i cant make it work, the machine i am running the code is XP and i am using VB2008.The code i have found is the following:
Imports System.IO
Imports System.String
[code].....
VS 2010 Make A Code That Unzips Files And Then Move Those Files Into Another Zip File?
Feb 23, 2012How do i make a code that unzips files and then move those files into another zip file?
View 2 RepliesVS2010 .NET And Windows 7 Access Denied On Writing To Or Creating Files In Project Files Folder?
May 22, 2012Ok I know this question has been asked to death but I still have not seen a good answer. I have created an application in VS2010 using VB.NET. In my application I have an error log that is an XML file located in the Public gstLocalErrorLogLocation As String = Application.StartupPath & "ErrorLog"that gets written to in the event of an error so I can trouble shoot application easier. My application also downloads files from our FTP site and puts the files in Public gstLocalDownloadLocation As String = Application.StartupPath & "download"So I have files that get read and written to as well and created and deleted all in the Application.StartupPath which is either "c:Program Files(Application Directory)(Some Directory)(Some File)" or "c:Program Files (x86)(Application Directory)(Some Directory)(Some File)" depending on 32bit or 64bit Windows 7.
After creating the setup I install it on my test machine that have both Windows 7 32bit and 64bit.Everything in the application works great till I have to write to, delete or creat a file in those directories above. I know it is an access issue and the UAC. This will get installed on numerous systems so the options I have seen to change file or folder permission on the computers manually is not an option.What has to happen is after I install the application it just works like when you install it on XP. Some post have suggested that you us a user with administrator privilages or group which is all fine and dandy but the user I have used to test the application has all of that.
So what I am asking is how do you create an application with VS2010 in VB.NET that after creating a setup package and installing on Windows 7 will just work with out "Access to the path c:Program Files(Application Directory)(Some Directory)(Some File) is denied." If I have to install this on 100 Windows 7 computers it has to be a concreate no manually doing anything just install and work like when we installed on XP.
Add Folders And Files In To MSI And How To Access That Added Files In To Custom Action Of MSI?
May 24, 2010Actually I want add some folders and files to MSI. Through custom action i want to copy that added folders and files to some destination/target folder.
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