I'm going through All-In-One Code Framework Coding Standards document and one of the recommendations is to add a file header comment at the start of every human-created code file. This is the first time I've seen such a recommendation and to me it's just an unnecessary and ugly clutter but I'm wondering if someone could explain why M$ recommends this?
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How do you view the code from a .exe application file that was created using Visual Studio?There are several applications of which codes I want to see to understand how the application was created to increase my understanding of VB.
View 4 Replieshowever, I am stuck at BinaryReader.actually this is what i am trying to acheive through VB.NET.say for the following file type :
JPG file = FF D8 FF E0
BMP file = 42 4D BE 4E
PNG file = 89 50 4E 47
GIF file = 47 49 46 38
the above are the 4-byte headers in Hex(raw) I need to read these headers of any given file using OpenFileDialog using Button1_click event,on selection of any given file(*.* filters ON)it should use the BinaryReader and look for only 4-bytes starting from offset 0, and it should not go to EOF marker (-1).and have a variable to hold this 4-byte header value, to run this in a database table which will check the same header value in the table and would display the corresponding extension of the file. from the table.
I can do this using case, if then...etc.however, I have to do it using Database and also i need to check for testing purpose to use MsgBox() to display this variable which is holding the 4-byte header.however, the MsgBox doesnt allow anything other than String.
PS: I tried studying the methods like:
FileOpen/Seek/Peek/ReadBytes().
but still not sure how to get them work.
How do I add a comment to code snippet in Visual Studio?
View 18 RepliesHow to comment multiple lines of code/block of code in VB?
View 5 RepliesI have a dbf file. I saved it as a csv file and can open it in excel.
But i cannot open it in VB.net using programming and OLEDB connection.
If i copy all these content, paste it in a new excel sheet and then save it as csv file. My VB.net program reads it absolutely fine.
Any idea what might be wrong in saving the file directly from dbf to csv using excel?
When reading and writing data to an XML file, in XML code, through a VB application, how does one go about commenting out a specific XML code line? From what I've gathered the original <!-- and --> tags aren't compatible. So what would be the VB alternative? Or is it just not possible to comment out a line of XML code using XML code through VB?
View 5 RepliesWhat 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 is the Microsoft Standard for Code Commenting
1. In case of Class 'Class header Comments
2. Function Comments
3. Subroutine Comments
There are different ways to comments like XML Documentation using ///
CODE:
Which Stnd should follow? May be something else other than above?
i know in java and other nice languages it's possible to comment out a bunch of lines at the same time. is it possible to do this in vb.net?
View 5 RepliesI have a csv file generated with headings on the first row and data on the rest. The file varies each time and I have to have all these values for further usage. I'm using File.ReadAllLines(path) but could ignore the header row.
View 2 RepliesI have a SSIS package to read CSV file and generate a Flat file. In the CSV file, first line is having the column names. I have to verify whether column names are in order, if not i have to produce a error. I have to use a script task for this one. I read the first line using readline method and split the line with commas, the problem is the file having a multiple line column names, means column names include new line character also. So how to get the column names from the header?
View 1 RepliesI'm trying to create a "File Not Found" error to display if a file the program is looking for is not created.Example:
Dim ProcessProperties As New ProcessStartInfo
ProcessProperties.FileName = "filename"
ProcessProperties.WindowStyle = ProcessWindowStyle.Hidden[code].....
I also need help creating a text box, that will submit information to another source (like echoing to a command prompt window). I'm trying to add a killtask option where the user can enter the name of the tast (such as notepad.exe) and press 'Submit'. The button will then send a code (killtask -f notepad.exe) to a command prompt window.
I have been working off and on for a year on my own media browser that I created in VB.NET. My program will play MP3 playlists as well as supporting drag and drop
Getting fileinfo of an mp3 is no problem but I have discovered that it is more complex when I try to get file duration of video files (.avi,.mpg) etc.
My code listed below uses a timer. In order for me to get a video duration value, I must actually play the file in axwindowsmediaplayer1 for one second. This seems not practical.
I have seen many examples on the internet in C# that read video metadata without need to play/load the file. Why are there no examples in vb.net of this? Is it too difficult to achieve in vb.net?[code]...
I am trying to open a remote file to read the header row to establish which columns the file has. The code below works but takes ages with a large file. I have a feeling the whole files contents is being read into memory?Is it possible to read a header row of a remote file without reading the whole file into memory? the files I want to peek at will have 500K + rows so I need a quick and efficien
Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnUpload.Click
[code].....
I'm using the VB code below to create a file and write to it:
Dim myFileStream As New IO.FileStream(tempFolderLocationLabel.Text & "" & tempFileName, IO.FileMode.Create)
Dim myStreamWriter As New IO.StreamWriter(tempFolderLocationLabel.Text & "" & tempFileName)
myStreamWriter.Write(sageLinkerRef)
myStreamWriter.Close()
myFileStream.Close()
Just recently got into experimenting with NLog, and it occurs to me that I would like to be able to add header information to the top a log file such as:
Executable name
File version
Release Date
Windows User ID
etc...
After some searching I have been unable to find anything in the existing on-line documentation or code forums which indicates this type of functionality. Is this possible? I have always previously included this sort of information in log files, and have found it useful on numerous occsions in the past, when sourcing information on production issues at customer sites. Admittedly, this functionality was custom built for the solutions and not based on any of the current .NET logging frameworks.
I'm using vb express 08 and I'm writing a program that requires the name of (and possibly location) as the form header as well as the name of the program itself.
for example; when you open MS Word, the title displayed at the top is [file name] - Microsoft Word
I'm wondering how I can go about creating something like a header file to contain some verbose functions I don't want to have to look at after I get them created. Something like in c++ like..
#include "classfunctions.h" to hide all the nasty stuff you don't want anyone to see.
For my project, I need to develop an app, which will have MS-SQL db with 4 tables
a>FileHeader
b>FileFooter
c>Extension
d>Detail about the file.
This is all to do with the Magic Numbers, or File header and footer, found in all files. The first 4-byte and last 4-bytes.
Example:
Suppose a word DOC file when read using this app should return and match the values
D0 CF 11 E0
So, how can I read the files using vb.net, fileIO, FileStream/StreamClass/FileReader? I just need to open the file and read the first 4 and last 4 bytes of any given file. And then it should connect back to the SQL database and lookup for the matching values from the tables as I had mentioned. And return a match found or not found.
I have to read in several thousand lines of a EDI 4010 or 5010 formatted file into a database. This is medical claims data. In my current process I read each row of the file and parse it into a string array. I then assign each value of the array to a string variable and when I detect a new claim header or detail record I write the variables to the SQL server in a SQL insert statement. Example below
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The below code imports my CSV file into the data grid. Only issue is it populates the header with a row from the CSV file, I want the header to be left blank and rows to be imported after it.[code]
View 1 RepliesI have a weird requirement to parse a file which is a comma separated string with repeating header..i have a file which i load into database and this gets populated as a single column string with header and details data:something like this (This is single COLUMN String in a table). SSIS is not able to handle this so i am trying to know..If it is possible using writhing VB.Net custom component.[code]Also, if i can pass the values of header (i.e. header3, header5, header7 and header10) as a variable would be ideal.
View 1 RepliesI'm making a small scripting engine in C# and I was wondering, is there some sort of #compiler directives or some sort of other header-like file I can compile with my script files to define what Managed Dlls my script files are referencing?
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I would love to be able to eliminate this line of code:Parameters.ReferencedAssemblies.AddRange(References);and put that information in my scripts instead. The problem is I do not necessarily know ahead of time what .dlls the scripts are going to reference. My current solution right now is to parse a custom "script.cs.refs" file that looks something like this:"System.dll","System.Data.dll","SomeOther.dll","Ect.dll" where visual studio stores your references to dlls and if it has to be defined in a separate file, if there is a standardized format I should be using that I can load into the compiler that tells it this information,
I've gone through about 16 hours and two packs of cigarettes trying to figure this out. First a little background. I was using 6.0 up until 2004 when I went to prison. I'm out now, and trying to relearn the trade, using VS 2005. I'm currently porting some 6.0 code from another project, SpyCast Webcam Studio, into VB 8.0. It's disheartening, to say the least. None of the old built-in subs/functions work anymore, so I have to scour the forums to relearn each and every function.The section I'm doing now takes a snapshot from the webcam (Video API --> PictureBox --> Save as Jpeg), then upens the file to upload it to the server via HTTP POST. I've been using this code in SpyCast for years with no trouble, but I spent many hours trying to piece together the right code to open the binary file to read its contents. I pieced together two methods I found around the forums, one using FileStream() though the code I found wasn't for binary files, even though it said it was, so that code doesn't really work. Method two uses Microsoft.VisualBasic.FileOpen() and works better.
Here's the kicker. By the time I run through the rest of the rigamarole of uploading the file, by the time I read it on the webserver, it's *slightly* corrupted. It's a valid Jpeg, no errors, but the picture looks like when I use to watch the Playboy Channel when I was a kid scrambled with weird colors and whatnot. [code] Each "chunk" is basically one "line" of the file. It looks like a single LineInput() return is the text between two carriage returns. Am I correct? I tested this with a flat text file, and it looks true. However, That one input line returns the text or data with the carriage returns *stripped*! ***?!? =( Fine, I have no problem adding my own vbCrLf to each LineInput(), if I were opening text. but this's binary. A character could be Chr(10) or Chr(13), both of which are removed from the original file contents.So I could very well need to use something other than LineInput(), but I haven't found any other examples on the web using this method.
I'm having trouble writing the code to encrypt a file->networkstream->Decrypt the file.. I've tried several ways, but I keep failing....
View 1 RepliesI'm using Visual Basic express 2008.The application I am working on is the first major project I have ever undertook with visual basics. The application is a launcher for a private server for world of warcraft.I have a menu bar that pulls the file path of the wow.exe and puts it in a hidden textbox, I then have another option that saves this text to c:wowexe.txt. All of this works GREAT!
How can I read the .txt file to end and return the information stored in the .txt file to this line of code.
Dim RetVal
RetVal = Shell("This is where I need the data from the .txt file to be seen", 1)
If your wondering why I don't just type in the path of the .exe, it's simple, not everyone installs World of Warcraft on the C drive.
I am trying to code a delete button for a browsing program based on data from a txt file. I have coded the buttons to sort(ascending and descending), append to the text file, search the text file, but I can not seem to get the delete function working. I am using VB 2010, this is what I have so far:
Code:
Dim deleline As String
Dim line As String
Dim isFound As Boolean = False
sr4 = IO.File.OpenText("Students.txt")
[code]....
I am wondering if Global.asa can handle a procedure like this:
Protected Sub errore(tipo As Int16)
'Response.Write(Err.Description) 'or your own custom error message
Dim msg As String
[CODE]...
The idea is to have a central place to put the routine in instead to copy it into every .vb file that belongs to each .apsx code file.
I'm looking for a code snippet that will add graphics (lines, circles, etc.) to an existing pdf file & write it out as a new file.
View 6 Replies
