How To Read Data From A List Box
Mar 14, 2010i have two list boxes with words in them and i want to put then in a string of data..or a textbox either one. And also how can i move the listbox down aumaticaly on a timer?
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Read A List Of Data Into An Array Using A FOR NEXT Loop
Mar 1, 2010I cut my programming teeth on QBASIC so apologise if I'm a bit behind the times. I wrote a program in QB and I'm trying to convert it to VB.NET. One stumbling block I've hit is the DATA & READ facility, there does'nt appear to be an equivilant in VB. I want to read a list of data into an array using a FOR NEXT loop.
View 13 RepliesRead The String Which Contains XML Data And Store The Elements In A List?
May 17, 2011I have a string with xml data.Dim appManifest As String = New System.IO.StreamReader(Application.GetResourceStream(New System.Windows.Resources.StreamResourceInfo(e.Result, Nothing), New Uri("AppManifest.xaml", UriKind.Relative)).Stream).ReadToEnd()
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Comm Port Read Hangs When Attempting To Read Data?
Apr 18, 2010I;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()
HSD 32 Bit Data Bus To Serial Converter Via A Microcontroller - Data Sniffer To Read The Data Bus (32Bit)
Sep 3, 2008Im 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)
Read Data (read Only) From Excel Files?
May 27, 2011I 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,
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VS 2008 Student List Views - List Boxes And Data Fro Access DB Tables
Dec 30, 2010This is what I'm sure will be the first of many noob-ish questions from yours truly... I'm studying as a mature student for a Computing Degree (encompassing web design, hardware, programming and systems analysis). The programming seems to be my weak spot this year. I enjoyed C++ last year, doing basic console applications, but progamming visually with VB in Visual Studio 2008 I'm struggling!
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Loop Against A List And Fill Another List From Its Data Using Linq
Jul 29, 2010This is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)
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Read XML File - Read The Data From ?
Feb 13, 2010I 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:
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Read Dataset And Add To List
Oct 14, 2010Here is my code. clsRules is a class with Get set properties. I have to read data into list and then add to dropdown. There is a reason I am not directly adding dataset into dropdown. That may be part II of the problem.[code]
View 3 RepliesRead Every File In A List Box?
Feb 28, 2010I am trying to read every file in a list box. and add it to a checked list box.
View 1 RepliesLIST VIEW - Display The Data About In The List Box
Aug 4, 2010I have added a list box and now i need help to display the data about my employees in the list box. How am i supposed to do that, do we have to put in codes or need to use that small arrow near the list box.
View 15 RepliesUse Data From A .txt File To List The Grades In A List Box?
Dec 3, 2009I'm an instructor trying to use data from a .txt file to list the grades in a list box. I just want to grab the data from a .txt file, list the total amount of grades in a list box, the mean (avg) and the standard deviation.
View 5 RepliesRead An Object To An Array List?
Jun 10, 2009i need to read an object to an array list. where i can get in depth tutorial on array list.
View 1 RepliesRead Xml Attributes Into An Array Or List?
Dec 30, 2009I am trying to read the attributes of xml elements into a class which is then added to an array (I've tried the same thing with a List(Of T). For some reason, the last element is put into all the array positions. There can be a varied number of FactorParam elements each represent a different parameter and its relevant values. If there are two parameters, both positions in the array ActiveAGMP.FactorParamsArray will contain the values for param2. Likewise, if there are three parameters, all three positions in the array will contain the values for param3.
<FactorParam name="param1" type="string" id="1" value="Close" />
<FactorParam name="param2" type="integer" id="2" value="20" />
<FactorParam name="param3" type="integer" id="3" value="10" />
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Read-Only Wrapper For Customized List
Dec 7, 2009I have created a customized list (by implementing IList) where I added a few special methods. Sometimes (but not always), I only want to expose this list as read-only. To do this for normal lists, I use the Collections.ObjectModel.ReadOnlyCollection wrapper, which works fine typically. But it seems by passing my customized list through this wrapper, my added methods are no longer visible, which defeats the whole purpose of having this customized list object in the first place. How can I create a read-only version of a customized list?
View 2 RepliesRead/write From/into A List Of Dictionary?
Jan 11, 2012i want to know how to manipulate the data from a Public ListD As New List(Of Dictionary(Of String, String))meaning read/write I've tried with ListD.Add("string_as_key", var_as_value) but it haven't worked?
View 2 Replies.net - Read And Process A List Of Text Files?
Dec 21, 2010I'm completely new to .NET and am trying as a first step to write a text processing program. The task is simple: I have a list of 10,000 text files stored in one folder, and I'm trying to read each one, store it as a string variable, then run it through a series of functions, then save the final output to another folder. So far I can only manage to manually input the file path like this (in VB.NET):
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I'm wondering, therefore, if there's a way to automate this process. Perhaps for example store all input file path into a text file then read each entry at a time, then save the final output into the save path, again listed in a text file.
Compile A List Of Things That People Can Read Up?
Jan 15, 2011ometimes when you want to learn something its tough because you can't learn what you don't know exist so basically i was trying to compile a list of things that people can read up on to learn Vb.the list is located at [url]....right now the list only has the things that i know..
View 13 RepliesHow To Read Two XML Files And Return List (of Objects)
Jun 20, 2011I have two xml files. I have to read them and return as a List( Of object). Here is my function.
Public Function GetData(ByVal name As String, ByVal city As String) As List(Of Object)
'Return Nothing
End Function
Make The Combobox To Read It's Own Values From A List?
Sep 29, 2010I'm trying to make an invoice program, but i made only the form view (blush).
1. how can i make the combobox to read it's own values from a list, but a list in which i can add or remove items?
2. i need a field which is like autonumber in Access for the invoices'numbers and it has to increase it's value every time i push Button2
3. I used a datagridview to write the goods I will sell, but the last column has to show the result of (column1*column2) but it's always empty. I'm using VB 9.0.
Read A Set Of Names Out Of File And Then Append Them To List Box?
Apr 10, 2012How would i read a set of names out of a file and then append them to a list box?I am not guaranteed a pair will be on the same line, and not guaranteed that a line would contain a maximum of one pair(i.e., it might have three pairs or it might have one and a half pairs - a first name, last name, and another first name whose matching last name would be on the next line). A line may also be blank.All of this needs to be in a visual basic format.
View 1 RepliesRead A Textfile Into A List Of Song Objects
Jul 2, 2011This is my first time using a list vs an array but I'm having a bit of trouble. I am trying to read a textfile into a list of song objects. I am reading the file successfully into the list however after the loop ends the program stops executing the load event and ignores the populateListBox() procedure. Any thoughts.
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Read Chunks From A File And Store Them In A List?
Dec 2, 2010I have a list of files and all of them have a different size. I need to upload them in chunks of 250Kb (or less if it's a small file or if it's the last chunk of a file).What I would like to do is read a bunch of chunks (lets say 15 chunks), in a separate thread, and then store the chunks of data in some sort of list. This list must be available to other threads.
An upload thread (I don't need help with uploading itself) takes the first chunk from the list and marks the chunk as "currently being uploaded". When the chunk has been fully uploaded, then the chunk is removed from the list. A second upload thread takes the next available chunk in the list that has not been set to "currently being uploaded", etc. There are a total of 10 upload threads working at the same time.
As soon as a chunk is removed from the list, then a new chunk of data is read and added to the list.Does anybody know what kind of list I need or how I should do something like this? I don't expect people to write out the code for me, but I have no idea where to start with this.
Read List Of Receipt Vouchers From Tally?
Jan 9, 2010I want to read data from tally using vb.net.I can read bills recievable data but i dont know how to read list of receipt vouchers from tally.
View 1 RepliesRead Table Fields In Checked List Box
May 9, 2012Using VB.Net I would like to read the fields from a SQL table and populate a CheckedListBox control with each field in the data table.
View 3 RepliesRead The List Of CDs And According To The Genre Selected In A Combo Box
Jan 8, 2012I have a text file to read. Each line of the file represents a CD with the title, the year, the artist name, the genre.My program should read the list of CDs and according to the genre selected in a combo box, it should output the list of CDs of the genre selected to a multi line text box.The stream reader is reading the strings properly but it only outputs the results if I use message boxes.How do I tell VB to display the "right" CDs all at the same time in a multiline textbox?
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Read Data Of A SQLite Database File And Chart Data Using Basic Bars, Pies, Lines?
Feb 24, 2010I'm only getting started with VB.Net, using VB Express 2008.Using the System.Data.SQLite wrapper, I need to read data off a SQLite database file, and chart data using basic bars, pies, lines, etc. Nothing fancy.
View 1 RepliesAdd Data From One List Box To Data From Another List Box To Get A Total?
Oct 5, 2009how to add data from one list box to data from another list box to get a total. My application has to have three list boxes. One list box contains a list of workshops a user can take. Another contains a list of locations the user chooses from to take the workshops at. When the user clicks an Add Workshop button, the application should add the total cost of the selected workshop at the selected location in the third list box. My problem is that each workshop last a different amount of days and each location charges a per day fee. I'm not really sure how to add all of this information together to come up with the total workshop cost. I think I should use a Do While loop. Another problem is that after the total cost of the workshop is added the user should be able to click a total cost button and get the total cost for all workshops they have selected.
View 16 RepliesPassword Loop Textbox - Code Works To Read The Entry Data And To Recognise The Correct Data, And The Incorrect
Apr 16, 2012CODE:
That code works to read the entry data and to recognise the correct data, and the incorrect. However, even if entry is correct, the error msgbox will appear (x times of how many records there are in file), despite being navigated to the menu. Anyway that the Else isn't triggered when data is correct. Also for it to appear just one instead of (x times of how many records there are in file.)
