Create File With Certain File Size?
Jul 14, 2009
I want to create an application where a user can create a file which is a certain file size. e.g. Two textboxes, one for Name of file and one for file size. When submit button is pressed, a file is generated from the textbox information. Here is what I have got so far:
Imports System.IO
Module Module1
Sub Main()
[Code].....
However this code is only for text files. I want users to be able to specify a file extension. The file doesn't need to work, it just needs to have a certain file size and a certain name. e.g. I can use this application to create the file Song1.mp3 which is 4567kb. It won't play because it is not a valid mp3 file which is fine, it doesn't have to.
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Feb 26, 2011
Check file size and take backup and re-create file? I am using this function[code]...
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Jun 5, 2011
There is some way to open a file and fill it with randon information until it reach a determined value?
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Apr 30, 2012
I'd like to create a new file everyday for a logging application to minimize size when accessing. I'm after a couple of pointers with respect to when to create the file, and what checks to do etc.
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May 5, 2011
Alright here's my situation: I have a form. This is a very small form that can be moved with the mouse (formborderstyle=none). The transparencyKey is 0,0,1. The form back color is 0,0,1. There is a label on the form. I drag files to this label(its backcolor is black[0,0,0]). What I want is for the filesize to be checked. I already have the uploading to ftpcode, I just want to know if the file is above my limit I set. (250mb per file)
[Code]....
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Jul 8, 2010
I like to compress the xmldata before the data is provided to the client as an excel file. I am trying to compress and deliver it as a .zip file. its not working Here's my code below. I tried compressing it, converting it to bytes etc etc. The issue with below code is, the XSL transformation is not happening properly and the output excel file is raw xml with some .net exception at the end. (that's what I see on the .xls file that's downloaded at the end) Before I started working on compression my below code was working fine that gives properly formatted excel file from the xml input. the excel file is so nice you can't even tell it was from XML.
[Code]...
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Apr 4, 2012
Language: vb.net
File size: 1GB, and stuff.
Encoding of the text file: UTF8 (so each character is represented by different numbers of bytes).
Collation: UnicodeCI (when several characters are essentially the same, the most popular version will be the one unique.). I think I know how to handle t his one.
Because each character is represented by different numbers of bytes and each line has different numbers of characters, the number of bytes in each line also vary.
I suppose we have to compute hash for each line. We also need to store buffers location where the line each. Then we have to compare buffers. Then we will check whether the same line shows up or not.
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Jan 8, 2011
I do one project in visual basic 2010.In visual basic 6 project can be make Package and deployment (setup file or install file) file using Package and deployment wizard.But in visual basic 2010 express edition does not have Package and deployment wizard.how to make Package and deployment (setup file or install file) file in visual basic 2010 project?
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Aug 11, 2011
I was using the following code to check the file size of a data file on my local machine. Now the data files have been moved to a mapped network drive and this code no longer works. What do I need to change or how do I access file size on a mapped drive?
Dim MyFile As New FileInfo(MyFilePath)
Dim FileSize As Long = MyFile.Length
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May 4, 2010
I'm working on a school project right now and I have everything fine except this one part of the project: "The audit and errorevent logs should be archived if they are larger than 5K and up you need to keep up to 3 copies of the files." I know how to read and write text files just fine, so I don't need help with that. What I don't know is how to archive a file based on file size, or how to keep up to 3 copies of the files?
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May 22, 2009
I am trying to create a log file which I am going to use to populate some controls (DataGridView or Treeview). I am trying to figure out if should use text files or XML files to do so. Effectively the log will highlight multiple phases in a client-side app. The log will be written to at various phases when the project is running. The user will always have the options move on to the next phase or save progress and exit the project. As such, I want the log file to highlight how far the user has progressed throught the various phases AND I want the log to highlight varous information from each phase. Whenever the user starts the project, they will be given the option to load existing log files. So the project will have to read these log files and append them where necessary as the user progresses.
I am not sure what the best way to do this is and below is a rudimentary approach using text files. As you can see, the top of the file would have a summary of all the phases and whether or not the user completed each phase. Next each phase would have a data section highlighting what data was stored along the way. I have used a ":" to denote each section. Then within each section I would obviously need to use a delimeter for all my data. So if Phase1 = True, then I would load all the pertinent data from "Phase1:" into the desired control. Can anyone provide an efficient way of doing this and provide some insight as to whether I should use XML instead. The phases my change during development and I am not sure yet which controls I will be using. Does XML provide more flexibility.
In summary I am looking to create, read/write and append log files and populate controls with the data in varous sections of the log file. Example:
Phase1 = True
Phase2 = True
Phase3 = False
Phase4 = False
[code]....
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Feb 13, 2010
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Apr 3, 2009
When I rename the file, what happens is that both files stay there, but the renamed file is 0KB and the original that is still there is 14KB[code]...
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Feb 9, 2011
How can I get the size of a file in MB if the file is located on a server? If the file is on a computer I would do this:[code]......
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Dec 27, 2007
in my application i want the size of the file which is located on internet
for example: [URL]..how will i be able to get the file size of the above mentioned url.
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Jul 10, 2009
I got no clue how I can check the file size of some file. I would like to be able to determine the size of example. "C: estfile.txt". How can I do this in VB08?
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May 27, 2011
I'm trying to get the file size of a csv data file to help me estimate the number of lines in it to use with a progress bar.
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Jan 15, 2010
In Form1 i have a Textbox1, in this textbox i have the loaction of a file "C:folderfile.iso" In the Form2 i want to get the file size of the file in Textbox1 so i tried this
Dim fileDetail As IO.FileInfo
fileDetail = My.Computer.FileSystem.GetFileInfo(Form1.Textbox1.Text)
Label1.Text = Size: fileDetail.Length
End Sub
I dont get an error, but the size of the file isn't showed in the label.Edit: This doesnt seem to work
Private Sub Unscramble_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If System.IO.File.Exists(Form1.TextBox2.Text) Then
Dim fi As New System.IO.FileInfo(Form1.TextBox2.Text)
[code]....
It still doesnt give me the size of the file nor it gives the "Size:"
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Mar 31, 2010
I need to read and process a text file. My processing would be easier if I could use the File.ReadAllLines method but I'm not sure what is the maximum size of the file that could be read with this method without reading by chunks. I understand that the file size depends on the computer memory. But are still there any recommendations for an average machine?
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Nov 15, 2010
Here's my code: System.IO.File.Move(Form6.OpenFileDialog1.FileName, "Temp") I'm trying to make it so that the program copies the file that you select in the OpenFileDialog and moves it into the "Temp" folder. It gives me an error saying: Cannot create file when file already exists.
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Feb 8, 2012
I want to create a file removal which revieve directory files to delete from a text file..[code]
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Feb 18, 2011
I have to generate an XML file from several database tables. I could use the WriteXml method of the DataSet to do it, but the database tables are really huge and I can't add all those tables in the DataSet at the same time or it may cause a problem because of the big amount of memory used. Then I decided to use the DataTable's WriteXml method and save table after table, but the the generated file only stores the information of the last DataTable.WriteXml's call. How can I preserve the previous XML data when adding all that information?
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Oct 25, 2009
I want my program to be able to create a '.txt' file when it is run for the first time, with the date and time the program was accessed, and to be able to add new 'logs' of program history every time it is accessed. What i mean is that i want my program to be able to create a '.txt' file, and then fill in the dates and times when the program is opened.
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Feb 20, 2010
This is what I am trying to do. I need to create some data inside my app and send it to another app as a file. But this 'file' should never be written to the hard drive. It will only ever exist in RAM.
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Apr 23, 2009
Does anyone know how I can get the number of bytes in a file on a webserver? Without downloading the file.I have code to download a file, but I cant get the size of the file I'm downloading...
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Jan 5, 2011
I have a problem, i try to open a file, then i open the file, i want to get the size of the file and write in to a ListBox. So if i have a file : 123,00 kb so then i push the button Ok then get the size of the file and write the size into the Listbox.
Cant some one here tell me how i doit, i have try and try, but its not work for me.
Here its my code.:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim alleAttr As Long
If System.IO.File.Exists(lblfilnavn.Text) Then
lstAttr.Items.Clear()
[Code]...
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Sep 19, 2009
I have a piece of code that does work correctly to get the size of an http file, but it doesn't work on ftp. This is the code (it is in a backgroundworker):
Try
Dim webReq As Net.WebRequest = CType(Net.WebRequest.Create(THE_URL), Net.WebRequest)
Dim webResp As Net.WebResponse = CType(webReq.GetResponse, Net.WebResponse)
[code]....
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Oct 12, 2010
the software im currently creating requires that a loaded powerpoint slideshow be automatically saved as a powerpoint show file (without actually creating a pps file).
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May 18, 2009
I'm trying to create a text file using the File Object and keep getting the following error message: "The process cannot access the file 'c:dataCompareResults5182009740.txt' because it is being used by another process." Here is my code below:
[Code]...
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Mar 11, 2012
I have a Datatable, and I want to export it to file, and attach to e-mail message.[code]...
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