How To Save And Read Data
Jun 10, 2011
I am working on a application where user enters his personal information (name, city...), so, should I, that is, should user save his data inside of the application, or should there be a data file where the information would be stored?
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Sep 22, 2009
what the best way to do this?
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Feb 24, 2010
This time, basically, i'm working with Random Access Files.I have this et of code to read data from a form a save it into a .dat file. This works fine.
Public Class frmDramaClub
Structure MemberRecord
Dim ID As Integer[code].....
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Jan 3, 2012
I got a question. I have a textfile name membership.txt and using vb2008. However my code found error when try to grab the data to an array. I use delimiter "|" to separate between each data in line to save in specific column in database.
[Code]...
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May 8, 2011
I am developing a program where i will download and save an xml file from a url as abc.xml. I open the abc.xml in a datagridview with a dataset without problem.I am confused how can i read raw per raw the datagridview and assign the data in a database table? i am using vb 2008 + msde2005 express.I show the whole content of the xml file in the datagridview with the following [code]I dont know how to create a loop where i can read the datagridview line by line save data in variables (ex.strings) and save it in a databese table?
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Sep 21, 2011
I have a number of word documents I am converting. Everything is going great until I get a file that is read only. In this case I get a Save As prompt.
Is there any way to open the file in read/write format? I should have admin privileges so access isn't an issue.
I'm using VB.net to open the files. More specifically
doc = word.Documents.Open(path, Type.Missing, False, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing)
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Apr 18, 2010
I;m attempting to write code to read several NMEA ports and format the data for archive. When I execute the following code:
Using Commportno As IO.Ports.SerialPort = _
My.Computer.Ports.OpenSerialPort(portName:=port)
Dim Incoming As String = Commportno.ReadLine()
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May 29, 2011
modify code to insert the data to MS SQL and save changes when click save button for the second time?
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Dec 27, 2010
how to code for the save button in vb.net datagrid view by using insert into sql and update sql statements (it should be able to insert & update the data grid and save the changes) when the save button is clicked .
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Apr 20, 2010
How to save all the data displayed in DataGridview( 2 column, no primary key) and have a button and
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Jun 18, 2012
I am working on desktop application. I had created number of dynamic textbox and label and I want to save that data on clicking the save button.
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Sep 3, 2008
Im working on a HSD 32 bit data bus to serial converter via a microcontroller. Now first I want to make a sort of data sniffer to read the data bus (32Bit) .All on the controller side is working and the stream of bytes are coming in via RS232 as 4 bytes in HEX like FD,A5,45,8B . I already converted the bytes in Dec and ASCII to determine what is passed true the bus and how fast and stuff.. Now that is all correct and working very well if the LSB (least significant bit) of the 32 data bus is Data line 0 and the MSB (most significant bit) is Data line 31 but if that is not the case I need to invert the 32Bits (like as I would invert the connector on the bus) . How do I best do this using the 4 bytes I send from the micro controller.
Example:
(MSB) 01001000 01100101 01101100 01110000 (LSB)
HEX= 48 65 6C 70
DEC= 72,101,108,112
ASCII= H E L P
I need to invert it with a button to:
(MSB) 00001110 00110110 10100110 00010010 (LSB)
HEX= 0E 36 A6 12
DEC= 14,54,166,18
ASCII= (SO) 6 : (DC2)
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Feb 24, 2009
in my form i have 4 textboxes and i want all not to be empty while saving the data.I have put condition in save button,when user presses the save button to save data, to check all the textboxes not to be empty. My question is that, i want to focus to that particular textbox which is empty during saving the data.
For example: i have txt1,txt2,txt3,txt4 as textboxes in the form if txt1 is empty while saving, the focus should switch to txt1 rather user himself have to go there.
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May 27, 2011
I want to read data (read only) from excel files
I use this connection string
Con_BarCode = New ADODB.Connection
With Con_BarCode
.ConnectionString = "Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm,
[Code].....
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Nov 17, 2009
I'm a "Moderate" skill programmer, and am upgrading some software I've written in VB.Net (VS2008, .Net 3.5), and need to be able to accomplish the following, which I'm not sure of the best way to go about doing: The software is an information reporting dashboard for a call centre. I have a csv file being created about every 10 seconds, extracted from the telephone software, the file consists of a list of "Skills" (basically telephone line types), the number of calls received on those lines, and the number of callers who hung up (and a few other bits of information I need, but once I figure the basics out, the rest should be easy), basically looking like the following:
[code]...
I need to be able to read this csv, store the data, filter out the "Skills" to be report on (i.e. 1,2, and 5 only), add up the "Offered" and "abandoned" data associated with them and then display this information as one number (i.e. "Skills 1,2,5 - Offered: 4925, Abandoned: 13") (and then the same for the other "Skills"). This data could grow as more phone lines are added or some are taken away.I've got the code to read the data into an array working, but I've got stuck with how to filter and add up the data. I'm not even sure if I can do this with an array.
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Jun 6, 2009
i have this code to save a rtf document as read only, but why is that when you re open it, it is not in the same format as when you saved it. like if the text was read and courier new p20, it comes out as the default font.
Private Sub readon_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles readon.Click
Dim sfd As New SaveFileDialog
[Code]....
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Jan 27, 2011
I am working on a project that is essentially a task manager. It has some special features, but in essence, you put in tasks, and when you check them they move. I have got most of it done, but I need the ability to save separate lists.[code]...
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Mar 16, 2010
I have a form to calculate some settings. It works just fine. I will input some decimal numbers to 8 deferent Textboxes. For example I input 40.0098 to textbox1. When I press a button my form will calculate these setting, and it will generate some new values. What I want to do is save the user inputs and the generated values to a text file each input or value has its own line it should by after the name of that input or value so the user could read the info contain in this text file, so per say line 1 of this text file will represent the input of textbox 1. it should save it as "parameter 1 = 40.0098" to line 1 of the text file I also want to be able to load this text file to my form (only specific lines) when I press another button I should get a dialog box to be able to select the text file, once I do that my form should read line one and only the input what after the "=" so textbox1 should now show 40.0098 only.
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Sep 13, 2009
I need read csv file in this format each line (value1;value2;value3;value4) and save each value to separate variables.
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Oct 16, 2009
[URL]... Regarding this question i got some suggestions, but how to implement is confusion. Can any one help to implement so that the problem can solve.
[Code]...
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Sep 17, 2009
I have some users who uses Outlook 2007 and some users who uses Outlook 2000. The message files created from Outlook 2007 should be read in 2000. I have created a simple drag 'n' drop function in my application that copies files to a hidden folder. What I want to do is that when someone drags a mailitem from 2007 to my application, the mailitem should be converted to be readable in 2000.
I have managed part of the code, but it's not that good. I have the following: [Code] This makes the .msg file readable in 2000, but unfortunately it has a huge side effect: When someone opens it, it opens it as a new message that is ready to be sent, instead of a message that has been received/sent.
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Jun 25, 2009
I try to read a stream and save it as byte array to add it later to zip file.this is the code that I use
Dim totalbytes As Byte() = Nothing
Dim iBytesRead As Integer
Dim sChunks As FileStream = File.OpenRead("c:myfile.wav")
Dim Totalread As Int64 = 0
[code]....
but there is something is not correct,
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Sep 11, 2010
After I send a post request to a site/forum and successfully logged in,
1) How do I save/read the cookies so that when I visit other sections of the site/forum I remained logged in?
Eg. I want to login to a forum and read a thread that only forum members can read.
Also, when I log in in the web browser tool (GUI) of vb.net, the cookies seems to be saved by the browser. Those cookies are also shared by Internet Explorer browser.
2) Is there a way to get the cookies from the web browser tool or Internet Explorer so I don't have to login and read/save the cookies programmatically?
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Oct 24, 2011
I want to save some data to a binary file, and read it later, as in several strings of data.
My objective:
To save the following things...
1. 3 different strings of data, and be able to easily read them later.
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Jan 22, 2010
Im making a program that can make diffrent profiles. So it have to save: Username, Password, etc. then be able to read it.But I have no clue how to read diffrent lines, and stuff.I was thinking if ex. the pass was like this:<Pass>Pass here</Pass>I can read what was between those things, but I coulnt get it to work ...
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Feb 13, 2010
I have a fairly simple XML file that I just want to read the data from.
It has 3 levels, root, main section and items. There are no attributes. I want to go to the first main section by name, then read in all the items. The items all are named the same. I've seen this done before, so it should be ok. No writing will be done. Basically this is a static data file
File looks similar to the following:
CODE:
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May 1, 2009
I'm trying to read and learn the save file dialog coding.[url]....
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Jun 8, 2010
I have an application that I need to be able to read and save a bunch of registry settings before they are changed. The purpose of this is to revert any new changes back to the original configuration. My application checks the state of each of the registry keys on startup. Is there a way to have it save the current configuration and then reload that configuration later ?
[Code]...
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May 4, 2009
How can i make a program that will read a text file (.txt) and save each seperate line as a variable? e.g.
Text File:
Hello
My
[code].....
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May 10, 2010
Dim days_in_clc_month(10) As Integer
days_in_clc_month(0) = 30
days_in_clc_month(1) = 29
days_in_clc_month(2) = 30
[code]....
i just need to get this block of codes out, and put it in a textfile. and my program will run without seeing it, because it's all saved in the textfile.
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