VS 2008 : Display Six Or Seven Lines Of Data For Each Device On The Same Screen?
Mar 2, 2010
I have 20-30 devices that I am connecting to and gathering data from. I want to display six or seven lines of data for each device on the same screen, then allow the user to click the object containing the device and show more detail on a separate form. There aren't any other programmers where I work and am looking for advice on how most efficiently to implement this. I have tried TableLayoutPanels, Datagrids, Textboxes, ListBoxes and I am probably not implementing them right, but they don't seem to be getting me where I want to go. I am also trying to stay away from hardcoding objects onto the screen.
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Sep 3, 2009
how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.
example:
1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite
Obviously this is 5 lines and that's what I need to count.
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Apr 1, 2012
I'm new to Visual basic (which will be obvious from my question) and am writing program that does various calculations, then displays the results in a list box. the results, however, are all concatenated, end don't each appear on a new line. I tried adding a carriage return/line feed at the end buit the compiler rejected it.
I can't find any examples of creating a list box, and adding multiple entries (one for each time a loop is performed), nor of how to use columns to make the resulting display cosmetically pleasing.
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Mar 8, 2009
In the application i am developing is there a way i can see tha values of certain variables?[code]...
if i do: messagebox.show(varRequest1.ContentLength) it print numerically the value, but i really need to see what the cookie contains to see where i'm going wrong kinda thing i have tried .tostring but i get an error
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Feb 15, 2012
In data base data is stored as
task line_item Amount
task1 lineitem1 amount
task2 lineitem2 amount
[code]......
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Jan 23, 2010
Simple question I couldn't find in the book or online. I have a Button which needs to have permanent text set to 'Calculate' and 'Section' on separate lines. The 'Multiline' option I have seen mentioned does not appear in my properties. I can't 'show the code' as I think it is a properties setting.
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Aug 24, 2009
How would I do this? I want my Program to draw 2 lines in the center of the screen.
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May 24, 2009
c# I want to display the bluetooth IP address of the smart phone or pda device that my software is on when a button is pressed in a message box.
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Dec 19, 2009
Im trying to make a custom splash screen , but i cant seem to get it to work. Im trying to display a welcome screen for 3 seconds then close and display form1 (main form).Heres my current code.
[Code]...
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Mar 15, 2012
I wanted to get your feedback on a design/coding issue. I have a treeview which represents the device tree in device manager. I also have two listviews which display information about the currently selected device on the treeview. I'm only concerned with the first listview at this point. The information displayed in the listview varies depending on the selected device. I'm using the node index to track which device class and device is selected and I pass this into the device class Display method. I hate the idea of a big Select Case statement. Then there is also the dynamic nature of the device tree to consider.
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Aug 3, 2011
It seems when I change some code while working with practice files I get green veritcal lines in the left margin of the code page I am writing. What does it mean?
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Nov 10, 2009
I'm currently working on a project where I am transmitting data from a comm device via the serial port and resorting the raw data (in binary) to its respective ascii values. The problem I'm facing is determining the most efficient method to accomplish my goal. Essentially, I have 68 bytes coming in, the first and second bytes represent the page and packet number and the data itself ranges from 3 to 64, the remaining for my checksum.
What I am needing to do is, grab 50 consecutive bytes per variable in my array, and that is where I'm confused. I have easily pulled my 3-64 bytes and stored that data to a string. I just don't know the most efficient method to accomplish my goal. Should I write directly to file all my data, as there are like 8 pages, of 128 packet data. [Code] I can capture the the first 50 by using a for-loop easily, but what would be the preferred method to track what data chunk I've taken? The more I think about it, I think I may just want to write to file, all my data, and then just take them back to back in 50 byte chunks. Is that the most efficient method?
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Mar 2, 2012
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).
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Aug 23, 2009
How do I make a loop from 1 to 100 and make it everytime it loops display incrementing numbers to the screen?
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Jun 2, 2010
i'm got this sql query code in dataset designer
SELECT pkt.fldPackageID, pkt.fldPSID, pkt.fldQuantity, pkt.fldQuantityUsed, pkt.fldRetail, pkt.fldPK, ps.fldName
FROM tblPaketRow AS pkt INNER JOIN
tblProdukDanService AS ps ON ps.fldID = pkt.fldPSID
WHERE (pkt.fldPSID = @param)
I'm trying to display the results in datagridview,i drag from the data source in vs 2008..I can't figure out to do that.I use this code to set the @param on form_load event.
Me.TblPaketRowTableAdapter.JoinTable(SalonDataSet.tblPaketRow, modCommon.s)
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Mar 29, 2010
I have a textbox that when i enter a text that is 4 characters long and my csv file contains those numbers it should display the rest of the text in a label.[code]...
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Oct 2, 2011
At the moment I'm using:
For Each book In books
result.Add(File.ReadAllText(book).Substring(0, 500))
Next
Return result
to display the first 500 characters of an rtf file I'm drawing from in earlier code, but I'm now wanting to specify line - for example lines 4 - 20.I can't find any way to get this to work as when I change the above code to:
For Each book In books
result.Add(File.ReadLines(book).Substring(4, 24))
Next
Return result
I get massive issues stating "Substring is not a member of 'System.Collections.Generic.IEnumberable(Of String)" I feel like I'm literally 1 line of code away from this being fixed but cannot get my head around it.
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Nov 2, 2010
Ive a richtextbox and want to display the number of lines it has in a separate RTB just like:
1 Hello
2 From
3 VB
I did it using the code:
<pre lang="x-vbnet">Private Sub text_RTB_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles text_RTB.TextChanged
numbering_RTB.Text = ""
[Code]....
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Feb 16, 2009
I've got a datagrid view and at present the user has to use the scroll bar to get to the last fields in the row.Is there a simple way of splitting the row so that all of it appears on one screen without having to use the scroll bar to get to the last fields in the row?
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May 5, 2010
how can i make my program feel if any device or usb device plugged into the computer or unplugged.url...
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Nov 13, 2009
A Problem in accessing a device from VB Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42) This error is because i am using 2 devices of the same company which has the mass usb storage on it and when i install one of the device the other hides. So one is detected the Other is not. It also give a error called designed dragnonacally something...
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Mar 24, 2009
how to display the messages in several lines in the message box in vb.net
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Mar 26, 2010
I have read a text file into a textbox. The text looks like this (small snippet):
N08861 A1 P 0 A2 P 0 A3 P 0
N08862 P 0
N08870 P 0
N08900 P 00000001
What I want to do is to only display certain lines - this depends on the N number shown above.
E.G. I want the text box the display line N5000 upto N6000.
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Oct 17, 2011
I have a usb instrument and a driver who's printed output dumps a data string to the computer I need to be able to read this string into vba The driver manual provides the content of the string but no info on how to access the data.
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Aug 4, 2010
I've created a custom USB device using a PIC18F4550 and I'm having trouble with reading information from the device. The device sends reports without a request from the application as 64 bytes. I'm relatively new to VB and this is my first foray into USB as well... It's not going good. I've set the Vendor ID to Hex 1234 and the Hardware ID to Hex 0001. I've used different libraries and the timer to check for incoming reports, but I can't seem to figure it out. I've waded through pages of USB Complete and all kinds of code for mice and barcode scanners, but nothing so far that will do anything for my device.. how I can register the device and get the raw report from the device and display it in a text box
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Mar 19, 2010
How can I read data from a HID device (USB RFID Reader)and which acts like a keyboard.
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Jul 1, 2009
I send a message a while ago and no one answerd, how can I draw directly on the screen (not on a specific window) just on the screen, neither if it's on the desktop or anything else.Is there is any option to bring up the switch between applications window (Alt + Tab), I don't want to use sendkeys because the user need to keep the key down and I just want the user to select the application with his mouse.
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Feb 6, 2011
I have a sim card reader, that is a usb-to serial device. It has a sim card inserted. what i need to do is access that sim card to get the data, phonebook and sms for example. I CAN connect to the reader but i cannot send any commands or recieve any data.
What are the commands i could use to access data held on the device. The chipset is pl-2303
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Jan 22, 2011
What is the best way to go about retrieving data from a proprietary hardware device that interfaces via HID USB? The particular device I need the data from is a blood-pressure/heartbeat measurement & monitoring device.The hardware came with software that downloads the data from the device and places that data into a (passworded/encrypted) MS Access database that I cannot connect to using programmatic methods, at least not without having the (admin's) password. The software provided produces reports, but the formatting renders them virtually useless (well, completely useless) for the needs of our company.
The device manufacturer provides to it's customers no API or any other technical information for accessing the data produced by their product; so, this pretty much leaves me stuck trying to figure out how to obtain the data via custom application in order to reclaim the initial justification for the expense associated with the hardware, which by the way has already been purchased.I don't need code snippits specifically, though examples would be nice; what I really need is to know is how to best approach this project, from a general design and programming stand-point.
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May 27, 2012
I know how to send data to com or virtual usb-com if it has physical com port number listed under "Ports (COM&LPT)" tab in the Windows device manager
' sending to device with physical COM port number"
Try
Dim searcher As New ManagementObjectSearcher( _
[Code]...
But how to send data to the device listed in "Universal Serial Bus Controllers" tab without any physical COM port number?
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