I've been asked to prepare a proposal for a client for a new development. The finished product will require copying of personal DVDs, e.g. a wedding or christening video, to AVI or similar format.
Is it possible in vb.NET to read data from a DVD and encode it as an AVI file? If so, can you give me some pointers to how I might research this more.
I have a modbus TCP device that I have managed to connected to through my VB source code.
I want to poll (continueously read) data from certain registers of the device, and store the polled data in a file (text,csv, excel).
Data binding should be an extremely simple thing to manage but I can't find a SIMPLE solution to the following problem.
I have two forms
Form1 contains a 4x4 MSFlexGrid (unfortunately an unmanaged COM object but I can merge cells, which I can't do with a managed Datagrid)
Form2 contains other controls which change the data in the Flexgrid.
I connect the two with a Public 4x4 array. Form2 changes the data in this array. I can update the grid data by reading the array. But how do I bind the Grid to the array so that it auto-updates - which is the whole point of binding isn't it?
I am reading data from a socket (as bytes) and storing this data in a string. Then later i need to access specific bytes within the string and do some math with them. However the bytes that I read back from the string are not what I am expecting.
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I am working in VB.NET 2003 and here is the issue of the day (for me):
I have an application which is supposed to read data from a CSV file one line at a time then pick out the 9th item ( a number) in the line and then add these numbers together for a total. The problem is the routine does not get beyond the first line. The code is as follows:
Dim total As Decimal = 0
Dim reader As StreamReader
Try
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How do I get this routine to advance to the next line of the CSV file and continue to do so until it has read the last line?
how can i display data from a sql database in a listbox?
View 2 RepliesHow can I read data from a HID device (USB RFID Reader)and which acts like a keyboard.
View 4 RepliesI need to display the MinAH price and the name of the item listed in the table. If possible, I would also like to make a listbox of all the servers/realms in World Of Warcraft, giving the user the ability to change the realm that they want from the list because the prices will be different. Another thing would be a specific item instead of the ones already listed in the initial table (see link if you don't understand). You can search items on the website, I'm not sure how I could incorporate this so the user can select a specific item.
View 1 RepliesI have been following tutorial from Bort and writed encrypted string to registry with this
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Now I want to read that from registry and get the date witch is encrypted to decrypted to textbox so I can compare it to date.today. How can I get that date from registry. I have used this Tutorial: RSA Encryption in VB.NET and tried to get these trial version tutorials to work together.
I am doing my academic research on ARM MINI 2440 and "i want the code to read the data from sd card and send that data to the serial port.
View 16 Repliesim having trouble reading in lines of data using arrays and a structure. I believe my main problem is figuring out how to keep track of the lines read in, even if the whole array size isnt used up. Also, To break up each line I am trying to use the split function to seperate spaces, but dont know if im doing so correctly.[code]
View 3 Repliesi have read a lot about reading data from pdf but still very confused. i have to gather data from a invoice which is in a pdf format and store it in the database now the invoice contains text, tables, signature and barcode. this i have to again print after adding some of my data in another format and hence i need to get the data from the pdf file.
View 1 RepliesPrivate Sub frmAttendace51_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'clear data set of any existing data
objDataSet.Clear()
'fill schema
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I have a column ("Notes") in a sqlexpress database as nvarchar(1000). It will basically hold notes. It is pulled froma richtextbox control.[code]...
View 2 RepliesI'm still at it.Have a new delima I have a form with 5 textboxes.1 thru 4 are read only ,and display various data recieved during my process. #5 is a user input,and accepts only numbers. Top Speed.bmp
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I'm developing application in VB.NET 2008.I'm reading data from Excel through OledbConnection. Here data are reading sometimes perfectly but sometimes it is missing to read some data.
Example :In Excel ,I have 79 columns in excel and 4 rows , first 3 rows are headers so after import i'll delete that rows and actual data starts from 4, so here i have only one row.After Reading through oledb, that dataset's datatable has only first 3 rows( first row became header and 2 & 3 row only in datatable, its ignoring 4th row)
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I need to :
Read data from a file. The file contains the location and file name of a file and the name to which I want to save as (about 27,000). Then I need to Open the File with PDF Pro 9 and save as pdf in a specific loaction with the new name. Where to find some samples of reading, parsing and concatenating data and running a program from within a script?
This is the code i wrote in order to First open a csv file as excel, then find the required three columns, n then read data from them n save the data into another variables showing them in textbox. As about the csv file, it contains many columns out of which my focus is on only 3 columns under title ID, L, Lg.Problem is Excel doesnt actually open but Excel.exe process runs in task manager. But by this point its not the compile error; Compile error comes at 'Next' Statement. It says Compile Error: Next without For!!
Private Sub cmdFind_Click()
Dim xlApp As Excel.Application
Set xlApp = New Excel.Application
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reading and modifying data from database
View 4 RepliesI'm building an application that reads barcode scanning data into multiple forms and textboxes. At the moment, to handle that data I have created a large nested if statement that checks to see which object has focus so that the scanned data is placed there and focus moves down to the next object:
Private Sub HandleData(ByVal TheReaderData As Symbol.Barcode.ReaderData)
'Scanning Data into frmGetCount
If frmName.Name = "frmGetCount" Then
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This is just for one of 5 forms I am currently developing. I am looking for a way to make this code much more dynamic and re-usable by removing the hard-coded objects name
i am trying to read data from a sql 2000 database.one of the fields is defined as datatype:image, Length:16.when I am in SQL management studio and do a select for this one column.[code]when i do a datalength on this field it come up with 2404/My question is, I know this is a numeric field, how do i read this into a vb app and how do I break this down into individual values?
View 2 RepliesI made a query in MS Access using fields from multiple tables. I want to display stuff from it into a listbox on the form and then I need to save stuff back too it also. But I'm obviously doing something wrong cos I keep getting the error: "The Microsoft Jet database engine cannot find the input table or query 'Today'. Make sure it exists and that its name is spelled correctly." [code] Also, I have written further down objDataSet. Tables("Today's Absentees") and "Today's Absentees" is a query not a table, what needs to be written instead?
View 3 RepliesHow to read data, submit queries from vb application to a remote machine running sql server. note: I have created a complete functional version of a stock control system with the database residing in the local machine. I just need the basic concept of interacting with remote databases that's all. Do we have to use sockets to read/send data ?
View 2 Replies1) i want to make my login page (which talks to a sql table called logins) my first page and it authenticates to that database and doesnt let you in until correct credentials are entered. ? not sure how
2) I have a Checklistbox that is populated with names - ( i want to be able to populate a database called members with those names(Firstname & Surname Only) and from a New members form populate the same members details into the members database this time including address email tel etc etc ....
3) create a delete button that will delete the information from the database and from the checklistbox1 (this is in case the member leaves the club).
4) how do you create trial versions keys etc ...
5) change a progressbar timer to last an 1½ and show hours minutes seconds but once the button is hit to stop the timer it automatically resets to zero.
I'm a new VB programmer, although I have a decent background in java.Anyways, I'm learning VB and I'm trying to read data from an Excel file using VB 2008 and can't figure out how to accomplish this. I can't seem to get any data from the Excel spreadsheet to display in a simple Windows form. Also, there's a decent amount of data in the spreadsheet so I was wondering if it makes sense to just read data as needed from the excel spreadsheet or if there was some type of data structure that I could import the entire Excel spreadsheet into and do my analysis from there.
View 1 Replies2 problems i need to solve 1st is i create tabe in database some fields is varchar (100) and some is navchar(100) i can insert and read from this table easy
but when i try to read data i got the spaces i mean of the inserted data is just 10 letters i got about 90 letter as spaces for example
"john smith " without qouts i don't need this spaces
2nd problem in reading data i can read data with 2 ways but both of them include a problem
1st i can read data in datagridview and textbox's easy
i'm using textbox to search in first search i got result no problem but if i try to change the data in textbox and search again i got an error
"This causes two bindings in the collection to bind to the same property. Parameter name: binding"
the second error when i use the other code i can get the data in datagriedview only but textbox's come empty
i dunno if i can ask more than 1 question in same thread but i need fast response
I will use this program for meter reader. Anyone can help me reading data from text file.. For example I want to get the data that i export from MySQL Database to Text file..
I have textbox to insert the acct number to search the name, and button1 to execute search, and another Textbox to store the name that have been search.
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Data in zone6.txt ---- Acctnum, 06-12-057, LIZAcctnum, 06-12-058, MARK, Acctnum, 06-12-001, MICHAEL
Acctnum is the column 1, 06-12-057 is the column 2, LIZ is the column 3.. how can i get the name LIZ if i type the acctnum
I have a question about reading data from txt file and importing(transfer) to the existing excel file.for example I have "test.text" which includes some numbers listed below.[code]I want to put each number to separate excel cells by using Vb.net.
View 1 RepliesI have a digital weighing scale I need to connect to the PC using RS232 communication port. Every time I weigh an object, automatically the result/ weight will display in the the texbox control in Visual Basic Application.I use to receive data via a timer for continuous looping sequence output to a textbox. Things do goes bad, as it flicking all the way. I using a indicator from AD series which read data from load cell of a truck weight bridge. It there's any way to stop this flicking without effecting the continuous loop?
View 3 RepliesI develop a simple application usiing VB.NET, VisualStudio 2008, that read input from a serial port
(from another device). I use the class SerialPort.
Using HyperTerminal I can see the input , it's fine. looks like :
S0P,A,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0 S0P,A,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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