I'm trying to parse through a large file which I know contains the raw data for numerous jpg files. I need to start by identifying the location of header for each jpg image and then carve out the image.The header in this case is as follows;
hxFF hxD8 hxFF hxE0 hx00 hx10 hx4A hx46 hx49 hx46
I have a parse from Wikipedia saved in a text file in the following form: The town itself is situated to the south-east of the rock, and overlooks the Palaia Monemvasia bay. A small hamlet with about 10 houses lies to the northwest.The founding of the town and fortress of Monemvassia most probably occurred in the 6th century AD. The town was founded in 583 by people seeking refuge from the [[Slavic peoples|Slavic]] and the [[Eurasian Avars|Avaric]] invasion of Greece. From the 10th century AD, the town developed into an important trade and maritime centre. The fortress withstood the [[Arab]] and [[Normans|Norman]] invasions and conquests in 1147. Cornfields that fed up to 30 men were grown inside the fortress.What I need to do is to extract specific texts from the parse given the header names. For example, if I type in a textbot Geography I need ONLY the geography text returned.
View 8 RepliesI wrote a program to download and play AVI files the files are large in size and long time wise. I have the files playing as they are being downloaded but i can't see how long the file is or seek reliably. i was reading that the AVI headers are in the last 512kb of the AVI file *why would't they put it at the start* lol so my question is is there a way to download the last 512Kb of the file i'm downloading. i have the Bytes Read and Length of the file while its downlaoding i'm just not sure where to go from there, or how to do it atleast. If i had the length in time of the Avi file i could set the trackbar to be able to seek properly. or if someone has an idea how i could get the time of the video by using fps and some math i could prob do it that way too but idk how i would tell how i can find how many kb are in the fps i'm sure it changes so think that way is't going to be reliable. how to get the last 512kb would be the best option not sure if it can be done even.
View 4 RepliesI am working with VB2008 sp1 and I want to use some of the Windows API calls. I need a copy of header files so that I can set certain constants to their correct values. Do I have to install sdk 6.1 and will this damage the sdk 6.0A that is already installed. I only use VB and I do not have any other language such as C+ or C# installed
View 6 RepliesI am having a question on parsing XML files. In my local folder c: estrdl, I have a bunch of xml files.... what I want to achieve is to extract the contents between <commandtext>. The extracted information is basically a SQL query.... Next step is to extract the FROM Clause from the query and save that piece of information into a file with the same of xml file and suffix is "FROM", for ex, if the xml file is called abc.xml, the extracted piece will be called abc_FROM.txt....
View 3 RepliesI need to parse a file but the data is in a strange format that I'm not familar parsing.
The data is always formatted like this. The field name is to the left and the data is right of the "=" and all fields are always in this order.[code]...
Is there a more elegant way to handle parsing files like this?
I am creating a kind of 'lightweight' visual studio IDE, basically a text editor for VB or C# code files, or in other words: a visual studio IDE without all the fancy stuff like actually running projects, debugging, form designer, etc. The idea is that you can view and edit code source files quickly and easily without having to start visual studio itself. I often find myself opening source files in notepad when I just want to take a look at something quickly, or to type some code that is intended to be posted on this forum. I find it too much 'work' to fire up visual studio on those occasions, but it would be nice if I had some basic syntax highlighting (already have that), Intellisense and such.
What I'm trying to do now is parse a VB or C# source file to extract information such as the types/classes in a file, and the members (as well as their parameters and return type) in those classes.I was going to do this manually but I doubt I could pull it off efficiently (if at all), so I started thinking about it and thought maybe .NET has some built in functionality already. I don't know much about this stuff, but I do know that you can compile source code by feeding it a string that represents the code. So if it can 'compile a string', then surely it should be able to parse it as well? With the difference between compiling and parsing (I'm not sure if I have this terminology correct) I mean:
- compiling: reading the source and converting it to the CIL so it can be run
- parsing: reading the source and extracting classes/members info, so that the IDE can do some basic error checking (undeclared variable warnings etc) and display the members in a class (in those comboboxes at the top of the code editor for example).
I don't need to compile the source (I'm not going to run the application), I only need to parse it.I would assume that I could call some function that would return a collection of types (Type), and from that I could figure out the members (MethodInfo, PropertyInfo, etc) and their parameters, return types, etc. And all I should give it is the source code as a string.
Where should I write the header file - Using System.Configuration and others? When I write it after the Inherit line in the form code (not the HTML one), it gives a redline under it. I want to start making a website.
View 1 RepliesI am currently creating a merging program which is processing multiple text files with header. I've manage to merge the text files but I'm stuck with the header that needs computation.
path of input files and header explanation: Input Files
After merging, I need to put back the header, adding up each values, which I explained in the path above. How can I do that?
Here's my current code:
Imports System.IO
Public Class Form1
Dim openFolder As New FolderBrowserDialog
'The routines must be
[Code] .....
I have a directory full of .txt comma delimited files arranged as shown below. What I want to do is to import each of these into a SQL or SQLite database, appending each one below the last. (1 table)... I am open to C# or VB scripting and just not sure how to accomplish this. I want to only extract and import the data starting BELOW the 'Feat. Type,Feat. Name, etc' line.
These are stored in a mynetworkdirectorystats folder on my network drive. Ideally I will be able to add functionality that will make the software/script know not to re-add the file to the database once it has already done so as well.
[Code]...
Is there a way to access the field header name of a databound repeater within the header template. So insted of this....
<HeaderTemplate>
<table >
<th ></th>
<th >Forename</th>
[code]....
I'm using the following code to populate a DataGridView with a worksheet. This is working fine, however, I'm unsure how I can get the Text from the page header. (not to be confused with the column header). Later in my code when I am exporting into an existing workbook with a new worksheet, I'm wanting to use the header text as the tab name. The header text being "September 2009" so that when I import/manipulate/export october, the new tab will be "October 2009" etc. [Code]
View 1 Repliesin my application i created table called houseloading which has field called housename.which is inserted into the sqlserver database. my table will look like this
///column name house
values red
green
what i want now is i want to display the values red green as column header in datagridview
which will look exactly like this
red green
I just want to parse simple expressions like IIF(FVAL(PFC) = TRUE, (IIF((ORGVAL(BAS, "2012/12/31") + ORGVAL(DA)) < 6500, (FVAL(BAS) + FVAL(DA)) * 12%, 780)), 0)`After parsing this I should be able to know what functions contains what parameters.
[Code]...
I'm stuck with .Net Framework 2.0, so no Linq or lambda expression goodies for me. Also I want to include the code in my custom library and not just reference it. Can anyone point me to some good library or code.
I just need to parse and not evaluate the expression and find what tokens are in use. After finding the tokens I need to change the expression string before parsing, like if the function ORGVAL is used then the parameter passed has has to be prefixed by an underscore. Like ORGVAL(BAS) will transform to ORGVAL(_BAS). Some functions can have tow parameters like ORGVAL(BAS, "2012/12/31") and this will transform to ORGVAL(_BAS, "2012/12/31")
NOTE: IF THERE ARE OTHER WAYS OF DOING IT PLEASE LET ME KNOW. I WOULD LOVE TO AVOID A PARSER AND LEXER.
how do I get the Header text of the header the user clicked in the datagridview.I know I have to use the column header click event but I can't work out or find away to extract the clicked header data?
View 4 Replieshow to make bigger tabpage page headers without changing tabpage or its contents font size. i just need to change tabpage header to make it look bigger with different font.
View 1 RepliesI have a report where each group is about 5-7 pages long.
I need to suppress the page header on the first page of each group Also I want to Supress the header on each group change (on first age on group)
I'm still relatively new to parsing xml documents into SQL. I am trying to parse one node out of an xml document.[code]...
View 12 RepliesI have an application where a datagridview is used to display some data, a datatable is bounded to it, and I want to put some text in the front of some rows to indicate that they are different from others. My code checks the rows and used the following
mydatagridview.Rows.Item(iCnt).HeaderCell.Value = "A"
To set the row header values, it was fine when the data was first loaded. However, when I sort the datagridview by clicking the column header, these rowheadercell values disappear. How to keep the row header values after the sorting?
[url]...The current header is Liar Game Season 2 [Eng Subs] (Ep 1-5)
How do I get the extract the header text from a webpage to use in my program?[code]...
How can i get the value of the header from the DataGrid???
View 1 Repliesi am new to this forum, hope u people will help me out.i need to add header to a text file which is created using my code.
View 4 RepliesI'm working in Visual Basic 2008 Express. My application uses a number of Message Boxes.When each appears, it has a blue bar at the top with words in it. Each bar has the same words, something like BSDEld 14-5-08. The words have nothing to do with the application and I'd rather not see them there. Can anyone suggest how I can get rid of them, or change them to something more acceptable?
View 5 RepliesI am working with GDI+ to draw backgrounds for my forms. I have a main form with 4 tabs, which all flicker. There is a gradient background behind them (bitmap drawn in GDI+ at Form_Load). I have double buffering enabled in the following manner:
Me.SetStyle(ControlStyles.UserPaint Or ControlStyles.AllPaintingInWmPaint Or ControlStyles.OptimizedDoubleBuffer Or ControlStyles.ResizeRedraw, True)
Everything on the form rarely flickers. The only times are when I am resizing, the numerous docked controls on my piece-o-junk netbook flicker momentarily, which is hardly noticeable. On a normal laptop it runs quite smoothly.The problem of which I speak is right on the headers of each tab (the white rectangle with text on it). When I move my cursor on or off of it, it will flicker. What is actually happening is that it is momentarily disappearing then re-appearing. This seems to be a control paint bug.I've tried the following override, without success.
Protected Overrides ReadOnly Property CreateParams() As System.Windows.Forms.CreateParams
Get
Dim cp As CreateParams = MyBase.CreateParams
[code]....
I have a Form that load the contents of a txt type file into a textbox1. How can I use the filename to fill in a label?For example, when I open the file Name1.txt, the textBox2 need to display Name1 only as a type of header.
Alternatively, is there a code that make the first line of a Multiline Textbox to display a different font or size ?
What is the simplest way to use a C++ header file in a VB.NET application?I need to access an API defined via the header file for a custom VB.NET windows app.
View 2 RepliesWhat's the easiest way in VB.NET to parse this XML? Here's an example of the full source:View Source XML I believe that the XML can be read directly into a class structure that matches the XML's structure.Let's take a bit of the XML from the above example,
<?xml version="1.0" encoding="UTF-8" ?>
- <kml xmlns="http://earth.google.com/kml/2.0">
- <Response>
[code]....
How do I handle nested collections, for example, the Placemark collection in this example?
I have an app that the user selects information and it writes to an XML file. The user can increase and decrease the information in the XML file so it is dynamic. The other app reads the xml file and uses it to complete tasks. Since the XML is dynamic my code needs to account for that. Right now I have only allowed the XML to have up to four values in a certain node, I would like to allow more but I will need to increase the Select Case function.[code]
View 8 RepliesI am making a change to an existing process. Currently the csv file (which can have embedded "," with the field in quotes), is being passed to my module as a IO.StreamReader, pStreamReader.
[Code]...
parsing text that i have loaded in to my textbox Using ofd1 As New OpenFileDialog ofd1.InitialDirectory = "F:"
If ofd1.ShowDialog = DialogResult.OK Then RichTextBox2.Text = My.Computer.FileSystem.ReadAllText(ofd1.FileName)
End If
End Using