I 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 created a media player in vb.net or vb2008 and it will import music files and play stop and fast forward but when the song has finished i want it to skip to the next one in the listbox. does any 1 know how to do this.
View 2 RepliesI have an output file that is putting the information in like this:
R
16
D
18
I
20
I need it to where the code is reading every other line. When I run the program it thinks that it is done once it hits a number. Here is my current code:
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I am importing a txt file containing 4 columns of numbers and storing the values into an array, however occasionly there is a line of text that reqires skipping at the start of the text file. I will probably use a textbox or checkbox to say how many/if any lines sohuld be skipped.
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How do i can skip crash if file is not exists which comes if app try download string.
So: http://127.0.0.1/Script/Info/ScriptList.txt
(If ScriptList.txt is not avaible how do i can skip crash and say messagebox: "File not found." instead of crash and apps close)
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How would you skip the process so the file is automatically created??
I am reading from a textfile. How can I skip a line if it's empty?
Or is it possible to delete at the beginning of ReadAllLines to remove this empy lines.
An empty line would be following:
text1
text2
"empty line"
text3
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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 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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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 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.
in 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
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 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 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].....
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 Replieshow 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 'For Each' loop that contains some items I don't want to analyse. Now I use a GoTo command to 'skip' an item. But this is not very elegant and (knowing .NET) there is probably a way to skip to the next item without using GoTo.
I'll show you a simplified version of my loop, designed to add all animals to a list, except the Leopard :
(Indeed, simplified, because there's like two pages of code in the real loop. )[code]....
I m using vb .net2008. I want to skip read-only columns, for this I use these codes But their some error, how is it possible??
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following is the code at button event which copy data from one DGV (dgvAccesList) to another DGV (dgvProbReport) and its working properly. Its paste data to 3rd and 4th column of destination DGV.But the problem is that, if at source DGV first column and second column have data..lets say up to 2 rows..then its copied data starting from 3rd row..for the 3rd and 4th column..which is incorrect..its should be always start with first row of third and fourth column.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
For Each dgvRow As DataGridViewRow In dgvAccesList.SelectedRows
Dim dgvNewRow As New DataGridViewRow
dgvNewRow.CreateCells(Inward.dgvProbReport)
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I have a datagridview and I want to click on it BAD to jump to 4 cell, but to walkwith the arrows is normal, I did this because the KeyDown / UP does not work becausethe cells are in Edit Mode:
Private Sub DataGridView1_EditingControlShowing (ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) HandlesdgvContactos.EditingControlShowing
Dim EditingTxtBox The TextBox = CType (e.Control, TextBox)
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I am looping through several hundred records from a XML file and inserting in SQL server 2008 using LinQ from my Web Service.My question is, for some reason if a record is not inserted it is coming out of the loop and going to the Catch block directly.
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