VS 2008 Read Contents Of A .ISO Using Zip/rar/7z/?
Mar 29, 2010
Im working with .ISO and .Bin files, and 7z, winrar and winzip are all able to open a .ISO or .Bin like there a zip file and you can see the contents like so:
7z
UltraISO
What im trying to do is detect the SLUS_215.57 file name, to then pass on to my if statements, like so:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim selit As String = CStr(ListBox2.SelectedValue)
[Code]....
View 9 Replies
ADVERTISEMENT
Mar 5, 2009
I need my program to 'take a peek' into a ZIP file and see if it contains a certain file. I need it to do this many times for a large number of files, so I would prefer it without having to unzip the entire zip-file each time, as that would take far too much time (it's a fairly large zip-file of about 250 MB).Also, I don't need the actual file at all. All I need to know is if it exists inside the zip file.
vb.net
If IO.File.Exists("C:FolderIPFile.zipfolder_in_zipfile.jpg") Then
' "file.jpg" exists inside zip-file!
[code].....
View 3 Replies
Apr 25, 2010
I have an XML file created using VB 2008 and I want to read the entire contents of the XML file into a text box.
View 8 Replies
May 9, 2012
I have a pretty weird one here, would it be possible to read a column of a text file in to a combobox and to display the directory after the contents of the combobox?[code]...
View 7 Replies
Oct 16, 2011
Is there any way I can read the contents of PDF file in Visual Basic 2010 ?Is there any ActiveX Control available for this purpose?
View 2 Replies
Nov 17, 2009
I want to read a PDF file having lots of text, images, tables in it. I want to read the entire file content by content page by page, from top to bottom.
For example:
The top of the page contains the Heading
Then on left hand side the contents and on the right hand side images
So I first want to get the heading then the contents then the images. Is there any Open Source for reading the PDF or any coding reference for .net 2.0 or greater version.
View 1 Replies
May 15, 2009
I'm trying to place the contents of a text file (just a list of names) into a list box when the form loads.
My code currently looks like this:
Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
I can get the names into the list box, but they're all on one line. I thought about using a For...Next loop to read the contents of the text file, but I got into all sorts of trouble; do I need an array with that method? So I've got back to the code I originally had.
View 4 Replies
May 24, 2009
I have a form with 2 listboxes. I've added items in each listbox. I save all the items from each listbox to a text file. What I want to do is open the text file and I want each string inside the text file to go to the appropriate listbox. How can I make my program recognize where each string belongs?
View 16 Replies
Jul 18, 2010
I'm trying to read the contents of a text file. Everyone says it's a piece of cake, but I still get error "404 Not Found" even though the site exists.
I'm using the following:
Dim myRequest As HttpWebRequest
Dim myResponse As HttpWebResponse
myRequest = HttpWebRequest.Create("[URL]") 'This does work
myRequest = HttpWebRequest.Create("[URL]") 'This does not
myRequest.Proxy = New WebProxy("http://proxy address", True)
myRequest.Method = "GET"
myResponse = DirectCast(myRequest.GetResponse(), HttpWebResponse)
When I hit the [URL] the myRequest.GetResponse command passes the contents of the site into myResponse. However, hitting the [URL] always returns 404 even though it exists.
View 2 Replies
May 16, 2008
Would I be able to for example, write the contents of Textbox1 (say it's labeled First Name) and Textbox2 (Last Name) and make it write to a database. The on the next screen, form, window, whatever....have it say Hello (First and Last name that was put in on the previous screen).
View 2 Replies
Aug 25, 2011
I'm trying to read the table of contents from a CD and am having problems with the DeviceIOControl function. When I call it with a control code of IOCTL_CDROM_EJECT_MEDIA or IOCTL_CDROM_LOAD_MEDIA it works fine, and opens or closes the CD drawer. But when I call it with a code of IOCTL_CDROM_READ_TOC_EX it gives an error code of 6 (ERROR_INVALID_HANDLE). I'm using the same handle, so I can't see why it's complaining. It's possible that the input data that I'm giving it is wrong, but I don't think that it should give this particular error in that case.
[Code]
View 14 Replies
May 25, 2010
I have developed a vb.net dll (.net 3.5) which does the following :
- I have data of several stock market companies.
- They are stored in several folders under a main folder.
- These files are random access files.
- There can be around 4000 files in total for example.
I wrote a program which reads a current csv file and stores contents in array. Then I store name and path of companies in folders (which I was talking about). Then I match one company from csv (stored in array) to companies in user's folder (again reading from array). If found I insert data in the file (random access file). This whole process takes for eg. 2 min my system. A similar program was written years ago by someone in powerbasic which takes slight less time if run one but if run for multiple csv files it takes only a few seconds doing the same thing for other files. When I do the same thing (by writing code to .net dll) and making a dummy app to run it, no matter how many times I run it takes same time. And is way slower than the earlier one (PB) one I was talking about. But if I paste the same code in my win (.net) app and not use .net dll then it runs a bit faster.
I need to show status so if I pass my form's label reference to .net dll and it updates it does that slow down process a lot. As I mentioned I am trying to process the files and it takes longer in .net. What should I do to get best performance? Unfortunately due to unexplainable reasons I cannot change the format or use a db. The files which I am reading/writing (random access files) are use by other products so I have to stick to that format. What I am doing is storing the location of those files in array so that I don't have to search folder again. that is not taking time. But opening reading and writing files is time consuming if I am doing it for few thousand of them. A similar program in powerbasic (developed years ago) runs fast. Running code thru .net dll is slower than running it thru program. Why?
View 4 Replies
May 21, 2009
I'm wondering whether anyone else has had to do this. I've looked in to some third party solutions.
The two I've used with the most success are: 1. xPDF. This includes an executable, PDF2TEXT.exe, which takes an argument that is the path to the PDF file to "read" and a second argument which is the name of the text file where it will write the output. This works well and fairly quickly, but it's external to my application and calling it via a Process.Start() command raises security considerations and requires to user to allow the external executable to run. They must allow this to happen AT LEAST every time they run the import application (IF they will check the "Don't keep bothering me about this" box).
2. A solution from Foxit, which is GREAT, but costs a good bit of money to use. Does anyone have a solution that I can implement IN MY CODE (like #2) but that's free (like #1)?
View 1 Replies
Oct 9, 2011
I am totally embarrassed at having to ask this question, but I'm having trouble with file IO.I want to write a line to a text file. On another form, I want to read the contents of the text file one line at a time, so I can make comparisons of it's contents.
View 5 Replies
Feb 19, 2012
I am unable to read from the text file in VB. I want to read the contents for text file and store them in array. See my code below and the text file. How should I read this text file.
'Purpose : This program will read student name & final marks for a set of students from the text file and then calculate & display class average, class standard deviation, number of students above class average, name of student with highest mark, number of students with A's(90-100), B's (80 < 90), C's (65 < 80), D's (50 - < 65) and F's (<50).Calculate for standard deviation of a set of numbers:Step1. :Find the average Step2. : Square the difference between each number and the average
[Code]...
View 4 Replies
Dec 22, 2011
So I managed to sync up the filesavedialog to save the contents of my textboxes to a file in a location, but how do i use the fileopendialog to read the contents from that saved file back into my textboxes?
Private Sub SaveFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles SaveFileDialog1.FileOk
Dim FileToSaveAs As String = SaveFileDialog1.FileName
[Code]....
that's my save dialog. i want to bring up the saved text from textbox1 back into the textbox on my application using the fileopendialog.
View 15 Replies
Oct 10, 2010
how I can read a word document to pass its contents into a variable. Is there an easy way to do this?
View 3 Replies
Nov 11, 2010
i have an array of booleans whose current boolean values I want to preserve but add additional length to the array? How can I achieve that? My code looks like this:
Dim Array() As Boolean
Dim ArrayInterimShort() As Boolean
ReDim Array(119)
[code]....
View 9 Replies
Jun 17, 2010
I am writing a simple program that will encrypt the text that is held in a text box and save it to a text file but I want it to be able to open a text file and decrypt the contents.
Ok now all the threads I have read are about reading a text file that is in a preset location.
What I want to do is open a text file that the user selects and have the contents displayed in a text box.
View 1 Replies
May 10, 2011
I am trying to create a code where I placed sets of numbers in an array.I'll use a masktextbox to have the user enter the numbers to match what's in the array. If the user enters the number, ex: social, and the data is correct (matches the numbers in the array), something happens if the number entered in the masktextbox does not match any of the number sets in an array then another thing happens.The masktextbox so far only validates format and gets number only, however, I want the number entered to match whats in the array.
View 1 Replies
Feb 26, 2012
How to add flash files in vb.net 2008 project.
View 1 Replies
May 8, 2009
I am writing a text editor application which uses an advanced third party text editor. This editor allows the user to set Bookmarks and use Outlining, just like the editor in Visual Studio. The output of my application is a ".script" file, which is basically just a text file. This file is read later by a game, and I can therefore not change anything to the layout of the file. It must be a simple text file.
When the user saves any document, I would like my application to also store the Bookmarks in that document, and the state of any Outlining ranges (collapsed or expanded). The editor allows me to do this by using a special Save feature, which saves the contents of the editor (the text), along with its properties, bookmarks, outline ranges, etc to an XML file. I can also load this XML file back. Now there is one obvious problem: my application should still output its documents as ".script" files, which are just normal text files as said above. Therefore, I cannot use the XML files that also hold the properties/bookmarks etc directly, since the game cannot read those!
View 5 Replies
May 16, 2011
Can someone tell me why this code works exactley the opposite of the way I thought it should?
[code]...
I have a combobox (cbKeyWords). I want to make sure tbAddEdit.Text does not already exist before I save. To me I should be testing for a False result not True. But the above code, goes to the msgbox if findstringexact=false and saves the data if it's true.
View 2 Replies
Sep 4, 2010
is it possible to colorize the contents of a combo box ? Practically I'd like the various texts in the combo box to have various colors (i.e. the first element to be in green color , the second in red etc) . I know this might sound funny but if it is possible it would be fun to use it !
View 3 Replies
Sep 14, 2010
I need to remove some content from string.
dim id as string ="TabContainerContent1_Basic_MyFirstName"
I need to remove TabContainerContent1_Basic_ . The fix is TabContainerContent1, it is under loop so always _Basic_MyFirstName will be changing. I need to get the text after the last _ char.
View 2 Replies
Jun 19, 2009
I'm designing a solution that involves a windows service running on a server that will have multiple clients requesting data from it. This windows service needs to read a few short details from some text files on the server, however there could be anywhere from 1000 to 100,000 of these text files. I've already written my code that goes through each of these files and extracts the relevant information from them and populates the properties of an instance of a custom class, then adds the class to a list. The problem is that if there is a large number of these files then looping through them all takes a long time and there are constantly new files being created and deleted in this folder as well, so I have designed the following system:
1. When the service starts it goes through every single file and gets the data I need from each one and writes it to an XML file (just one XML file that holds all of the info for all of the files, not an XML file for each one). It also stores the file name with each entry and then once it has done this loop through all the files the first time it goes through the file paths in the XML file and checks to see if this list of files is the same as what is actually now in the directory (as new files may easily have been created during the initial scan process). I figure this shouldnt take anywhere near as long as the initial scan because it is just checking to see if the same files exist, not reading data from all of them (although it may read data from the 50 or so that might have been created while the initial scan was running). 2. Once it has a list of files in the XML file that is the same as the real list, it starts a FileSystemWatcher to watch for any new files being created/deleted. 3. If the FileSystemWatcher finds a new file then it reads the info from this file and adds it to the XML file. So now when a client requests data from the service, the service just reads through the XML file and basically returns the entire contents to them. This should be much faster than the service reading through every single file every time a client requests data.
All I want to know really is - does this sound like a decent design? One problem I am curious about is what will happen if a client requests data at the same time as a new file being created, because the service will be trying to read from, and write to, the same XML file at the same time... I guess one way around this would be for it to check for a file lock before it tries to write the data and just keeps trying until the file isnt in use (say every 5 seconds or something)
I am using WCF for the communication between the client and server and WPF for the client side app.
View 3 Replies
Aug 7, 2009
why this code works exactley the opposite of the way I thought it should?
[Code]...
I have a combobox (cbKeyWords). I want to make sure tbAddEdit.Text does not already exist before I save. To me I should be testing for a False result not True. But the above code, goes to the msgbox if findstringexact=false and saves the data if it's true. Am I crazy or am I missing something? Shouldn't FindStringExact return false if it's not found?
View 3 Replies
Mar 19, 2010
i have my program and it does what i need it to do but when i export the contents of the text file it does not show the new line characters. it displays it in the text file like this all on one line
View 2 Replies
Oct 19, 2009
I'm using Visual Basic to assign a dynamic dataset to a gridview control. The VB calls a stored procedure on SQL Server which always returns the last 28 days of info and displays it in the gridview with the column headings as the date.
[Code]...
View 1 Replies
Jul 2, 2009
ive looked on google im not sure if im looking for the right thing as im kind of new to this type of thing, basicly i just want to print some text in to a label thats located beweteen a link on a web page the html is as follows:
View 2 Replies
