.net - Cutting Up Large XML File Into Small Chunks?
Jan 30, 2011
I have a large wikipedia dump that I want to cut into different files (1 file for each article). I wrote a VB App to do it for me, but it was quite slow and crapped out after a few hours of cutting. Im currently splitting the file into smaller 50mb chunks using another app but thats taking a long time (20-30 minutes for each chunk). I should be able to cut each of these up individually if I do this.
Does anyone have any suggestions of a way to cut this file up quicker?
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Apr 22, 2010
I have ~ 1 page how to that is currently in a text file which I want to add to a richtext box.I am just wondering if there is some way I can just copy/paste it so it keeps its formatting etc.
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Apr 29, 2012
When I try and run the program I get an error stating
"Value was either too large or too small for a Decimal."
On the line that says
principal = payment - InterestPaid
I've included the rest of the code as well. Perhaps this is a downside of staring at the screen for so long.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim payment As Double
Dim result As String
'declarations
[Code] .....
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Jun 1, 2009
I have writen a program in Visual Studio 2005 professional. Part of the program functions is to store customers details. Part of this details include a phone number. I can add a customer and include his/her telephone no. which is 12 digits long. But when retreiving this customer I get the following error.Value was either too large or too small for an Int32. Couldn't store <+23320805060> in Phone Column.Expected type is Int32.The program runs fine If the phone numer is less than or = 9 digits. The datatype i am using is for the phone column is varchar(50). I have tried to change the data type to bigint, int and nvarchar(50) but the problem seems to persist. I am using the SQL database but i seem to be hitting a brick wall on this matter.
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Jun 9, 2010
I am working on fixing a bug in VB that is giving this error. I am new to VB, so there is some syntax that I am not fully understanding. The code that is throwing the error says:
.Row(itemIndex).Item("parentIndex") = CLng(oID) + 1000000
I understand that adding 1000000 is too much for an int16. I can't change that value (not right now anyway). What I don't understand, and can't seem to find, is what .Row is referring too.
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May 21, 2011
I need to find out if the user's screen is set to normal 96 dpi (small size), large 120 dpi fonts, or something else. How do I do that in VB.NET (preferred) or C#?
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Dec 1, 2009
So, I have a little issue.. I can't currently explain it using the software I'm developing because it's "internal"... So I'm going to describe it as an email serverAnd the email server has a fair number of email accounts, and I want to save the accounts emailFor development, I've been saving it all in a list of a structure (this sounds worse than it is, the data actually is no more than 120 bytes per "email")
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Aug 31, 2011
I am coding a file downloader, when I got over this problem. I can not figure out how to download files in chucks.-file-chunks.htmlbut since it's not answered yet, I'm reposting it here kind of.
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Dec 24, 2011
I keep trying to encrypt a large file using this method: How to encrypt and decrypt a file by using Visual Basic .NET or Visual Basic 2005
However, these files can be upwards of 400MB. Naturally, I keep getting a system.outofmemory ex. Apparently, I can fix this by processing the file in chunks, but I haven't the slightest idea of how to do this.
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Dec 2, 2010
I have a list of files and all of them have a different size. I need to upload them in chunks of 250Kb (or less if it's a small file or if it's the last chunk of a file).What I would like to do is read a bunch of chunks (lets say 15 chunks), in a separate thread, and then store the chunks of data in some sort of list. This list must be available to other threads.
An upload thread (I don't need help with uploading itself) takes the first chunk from the list and marks the chunk as "currently being uploaded". When the chunk has been fully uploaded, then the chunk is removed from the list. A second upload thread takes the next available chunk in the list that has not been set to "currently being uploaded", etc. There are a total of 10 upload threads working at the same time.
As soon as a chunk is removed from the list, then a new chunk of data is read and added to the list.Does anybody know what kind of list I need or how I should do something like this? I don't expect people to write out the code for me, but I have no idea where to start with this.
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Jul 21, 2011
I've been trying to create my own backup system by sending specific files to a server running on my desktop, and then having those files copied to an external. So far, I'm trying to send files using a tcp network. Unfortunately, for soem reason, tcp cannot send more than 9kb at a time, so when i tried to send a 30kb image, it recreated 1/3 of it. My fix to this problem was to send data by chunks of 8kb, then reconstruct the file chunk by chunk. For some reason, when I run the server and client, the client says it sends all the data, however the server seems to be stuck. Here is my code;
[Code]...
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Aug 27, 2010
I need to make a small programm for ticketing on a parking for a small hotel.So i have 2 Printers pariking In (for delivery of the tickets) and 2 Readers PArking Out.Both Printers and REaders are working Serial.So i need to poll the serial ports of the printers and readers every second.The data is stored on a SQL database so i need to read and write in the database.Can i do this with 1 PC and 1 programm or 1 PC and 4 programms that are runnning at the same time ?
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Feb 1, 2010
On form 1 , i have a number of buttons that open up different websites.What i want to do is when i click a button on form 1 , i want forum 2 to show ( Form2.show() ) , Form 2 will have a list (Buttons) of internet browsers.
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Dec 31, 2011
I want to get some HTTP source with VB.net. The page is huge though, so it would suit me to pull it in chunks. I'm also already reading about the VB.net background worker. So far I'm using this code: HTTP GET in VB.NET but my program stalls while it loads the page, for a decent amount of time. The page to get is http://ftp.drupal.org/files/projects/, but don't go there unless you absolutely have to.
Should I stick with the background worker, and/or is there a way to split up the HTTP request?
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Mar 23, 2010
I have a class with a lot of methods. This class and methods are in one file. These methods can be put into 3 groups based on the things that they can be used for. What would be a good way to break these methods up into the 3 groups? I was thinking about doing a partial class definition and breaking up these methods into 3 files.
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Feb 20, 2012
In my project, form_double Click and Form_Maximize is not working when i do break point. Its not Button_Click, Form_Load. I want to do like this. "My project design form grid column size is small when form load and want to be large grid column size when the form is maximize."
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Jan 27, 2010
Builting a calculator. I have a string of two numbers separated by an math sign. Knowing the length of the first number then adding one for the sign will produce the start length of the second number. Trim the original string to get what I need.
dim num(25) as double
dim length,length1 as integer
dim string, string1 as string
length = Len(num(n - 1))
length1 = length + 1
[Code]...
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Sep 23, 2010
Below is a link to a small zip file with an existing VB (2005 I think) program. [URL] This programs detects if the OS is Locked. I want to make a small edit, and have found the required code for the edit, but I have been unsuccessful at attempting to implement the code. As I said this program only detects windows locks and unlocks. What I want to do, is set it to run an exe when I lock my computer. Doesn't matter what the exe is, just a very basic program.
I however have not been able to find where I need to insert this code. The zip file contains about 6-8 files, I thought I found the if statement where I needed to drop the code but even when I added it to every if that seemed probably I couldn't get any result. what if statement the code I need to add should go into. honestly all I need, I can handle the code past finding that.
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Dec 17, 2010
Is it possible to use VB code to code an application that can merge Hex data from a small (50kb) .dat file with the hex data from another small (50kb) file? This would require designating specific offsets, which I can pre-program, but If I could have user input this would be preferred.
Example.
Hex_1.dat
00 00 00 00 00 11 11 11 11 11 (Offset = 5)
Hex_2.dat
22 22 22 22 22 33 33 33 33 33 (To offset = 5)
Result file
Result.dat
11 11 11 11 11 22 22 22 22 22
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Sep 19, 2011
i have a small program to get text from a DAT file. the program gets all the text and puts it into a rich text box (rtb1) then I click a button (btnformat) to split the text in the dat file into indexes so that I can output the indexes that I want to an excel file. This program works when I use small amounts of data but if I use say 800 lines of text the program crashes/ can't handle the volume of data and just stalls.
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Jun 9, 2011
I want to write a program to do Markov chain, but my states are quite large. First of all I calculate all the transition probabilities and revenues for all states(1381860 total states), and store in a multidimensional array. Public RevArr(0 To 9, 0 To 750, 0 To 282) As Long
After that the iteration of markov chain should use these as inputs to calculate the steady-state probabilities. But when I try to run the main code I got this error.Exception of type 'System.OutOfMemoryException' was thrown.
The following is the declaration of second array I add just another dimension for storing all the iterations, but I get this error. Dim stateprob(IT + 1, 0 To 9, 0 To 750, 0 To 282) As single
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Feb 6, 2012
Basically, I have an Access database with Primary keys that are structured with this format ("02"000).When I try to paste the number, it ignores the "02" and goes straight to 000.For example, here is the code;
PeriodRoomID.Name = ("R" & ds.Tables("sqlSpecRoomRequest").Rows(i).Item(1))
What PeriodRoomID.Name should be is R02001.What PeriodRoomID.Name comes up as is R1.It ignores the "02" and ignores the 0s. This makes sense mathematically but it is not what I want. I need a way to get the exact output and not some simplified version.
The query;
SELECT SpecialSoftware.SpecSoftID, SpecialSoftware.RoomID, SpecialSoftwareNames.Description, Rooms.Capacity
FROM SpecialSoftware, SpecialSoftwareNames, Rooms
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Jun 25, 2012
I must input a letter and a number in a text box.. say "A14", and them I want to cut the string into "A" and "14" and then use these, but I do not know how to code this as the next string could be "A1" or "C110" and these change... could I make an if for each one? like an if for when its 2 characters and just cut it in half and then an if when its 3 characters and cut between the 1st and second and so on?
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Sep 7, 2011
What is wrong with this code?When the code runs cmd.ExecuteReader I get an error saying "Incorrect syntax near the keyword 'AS'".I'm assuming I didn't breakup the sentence correctly.
Using cnn As New SqlClient.SqlConnection(clsDBConn.clsDBConnections.prpConnString)
cnn.Open()
Using cmd As New SqlClient.SqlCommand[code].....
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Jul 22, 2010
I need a function that takes a decimal, with a certain number of digits behiond the comma and convert it to a string with a different number of n digits behind the comma. (to display it)My problem is the rounding ip/down.
like 123,789 with n = 2 --> 123,79
or 123,4 with n = 0 --> 123
or 123,5 with n = 0 --> 124
I did not find an existing function that does that, so I wrote one myself.However the code has become soo complex and it still does not work well, and I get frustrated to spend soo much time with something so trivial.Does anyone know a function that can do this? There must be something out there.
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Aug 26, 2011
this code takes about 30 mins and high cpu usage, what is the problem
Do
strLine = objReader.ReadLine()
If strLine Is Nothing Then
[code].....
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Aug 8, 2003
I need to display the first c.200 characters of a longer string, for the homepage of a news website. I am using VB.NET. Obviously, cutting exactly 200 chars quite often cuts a word in half, e.g.: "The last five years have seen a radical increase in the volume and complexity of company legislation. The Bahamas has established a Stock Exchange, passed legislation aimed at regu" I need a function that will produce: "The last five years have seen a radical increase in the volume and complexity of company legislation. The Bahamas has established a Stock Exchange, passed legislation aimed at" I can then add "... [More]" or whatever to the end of this string and voila! Is there any way of using regular expressions (regex), substr or something similar to produce this output?
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Sep 17, 2009
I am trying to populate a combobox using the following code.
CODE:
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May 11, 2009
i'm working on saving a text file.. the code i have, works without a question, no problem there.Imports System.IO
[Code]...
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Mar 7, 2009
I have a small Windows Application that displays a .chm Help File when F1 is pressed. What I would like to do is to close the Help Display programatically for example when a Reset Button is clicked and the Form is 'Reset'.
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