Read A List Of Data Into An Array Using A FOR NEXT Loop

Mar 1, 2010

I 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 Replies


ADVERTISEMENT

Loop Against A List And Fill Another List From Its Data Using Linq

Jul 29, 2010

This is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)

[Code]...

View 1 Replies

Display Payment List, Array Loop, Bu It's Not Work?

Apr 29, 2012

Public Class MortgageDetailsCalculatorForm
Private Sub CalculateButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CalculateButton.Click

[code].....

View 14 Replies

Loop Through An Array Of Byte And Copy The Contents To A New List?

Oct 3, 2011

I'm trying to loop through an array of byte and copy the contents to a new list of bytes, and display them back. see the code below.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myByte() As Byte = New Byte() {65, 66, 67}

[Code]....

I want to see str1 as "ABC" but the out put i get is "A B C" (ie with spaces between letters) note: I have to copy(chunks) within a loop and get the result at the end, this is just a sample to reproduce my real issue.

View 2 Replies

VS 2010 Loop Through Array List And Convert To Integer?

Dec 31, 2010

i have data in an array list called txtarray which contains numbers, how can i loop through the array list and convert the values from into a integer variable?

View 7 Replies

Password Loop Textbox - Code Works To Read The Entry Data And To Recognise The Correct Data, And The Incorrect

Apr 16, 2012

CODE:

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.)

View 2 Replies

Read An Object To An Array List?

Jun 10, 2009

i need to read an object to an array list. where i can get in depth tutorial on array list.

View 1 Replies

Read Xml Attributes Into An Array Or List?

Dec 30, 2009

I 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" />

[Code].....

View 2 Replies

Use The Timer_Tick Function, To Loop A Data Read From A COM Port?

Jul 2, 2011

I should use the Timer_Tick function, to loop a data read from a COM port. The object i call uses a method that closes the thread after a fixed timeout.

obj.Read(N byte) //--> if no data come within 500ms close the thread

My question is: considering that the Timer_Tick function will be called every (for example) 100ms, How long does the total execution last? Timer_tick time + Thread Timeout (100ms + 500 ms = 600ms) or just the Timer_Tick time (100ms) causing the anticipated thread closure/crash?

View 7 Replies

Array Of Structures Method - Get The File Read And Printed Onto A List Box?

Apr 17, 2012

These are the directions for the assignment.So far I am able to get the file read and printed onto a list box.The book we have for the class does not clearly talk about using the array of structure method with formatting an imported text file.After that I'm pretty much having a bit of trouble with everything else.I know I can figure most of it out but what I'm having a big amount of trouble with is the array of structures that he wants.I know that when I have the file imported that I need to save it temporarily and go through it and at every ":" put it in an array and save that spot and then keep scanning through the file. I know it is going to be a for loop using the index to count through but I'm not sure if how to start it.This is how the text file that he wants sorted out looks.

Ally Gators:Tim Tebow:240:280:250
Ally Gators:Albert Gator:150:175:222
Ally Gators:Joe Cool:195:220:217[code]...........

View 20 Replies

Loop To Total List Box Data

Oct 17, 2009

I'm trying to add all of the totals within a list box, which would then be displayed in a label.[code]

View 3 Replies

Loop Versus Array - Retrieving Data?

Oct 7, 2009

Can I know which is better when retrieving data?

View 3 Replies

Write Data To Csv From 2 Dimensional Array, Without Using Loop?

Mar 1, 2012

I have a 2 dimensional array 'allData(100,2) Is it possible to write the values from this 2-dimensional array to a csv, without using loop?

currently, I have a code but it uses Interop. Unfortunately, I need to just use csv because our servers does not support Interop. Here is my code when using Interop:

xlWorkSheet.Range(rangeCell).Resize(checkedOutItems.Count, 2).Value = allData

View 1 Replies

How To Read Data From A List Box

Mar 14, 2010

i 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?

View 4 Replies

Read The String Which Contains XML Data And Store The Elements In A List?

May 17, 2011

I 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()

[Code]...

View 2 Replies

Program That Will Compare Array Of Grocery List Items Glist And Array Of Coupon Item List

May 27, 2012

I have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?

View 18 Replies

Read Binary Data In An Array Of Objects Or Structures?

Dec 27, 2011

I need to create a collection of millions of objects, each object has 3 double and one integer fields.If I remember (after more than 20 years without using C) in C you would allocate enough memory using a struct and an array, and read all the file content in one shot.In VB I created a class with the 4 members, and this constructor:

Sub New(BR As IO.BinaryReader)
X = BR.ReadDouble
Y = BR.ReadDouble

[code]....

View 11 Replies

Read From A File And Then Split The Data And Store Them In An Array?

Jun 10, 2011

i am try to read from a file and then split the data and store them in an array but i am getting an error. can someone please point to the right direction here is the file i am trying to read from

8
223432,YNYYYYYYYYYNYNYNYYNY-
623123,YNYNYNYYNY--YNYNYYNY
912234,YYYNYNYNYNYYNYYNYYNY

[code].....

View 3 Replies

VS 2008 XML How To Create A Loop Where Can Read The Datagridview Line By Line Save Data In Variables (

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?

View 6 Replies

Read File Line By Line To Array List

Jun 22, 2009

I have code that reads the whole file, not line by line.

Here is the code:

FileOpen(1, filename, OpenMode.Input)
Do While Not EOF(1)
datatodisplay = LineInput(1)
Loop
FileClose(1)

I would like to know how I can read the file line by line and then add all results into an array list.

View 2 Replies

Chart Control - Creating Graphs Using Crunched Data Stored In Array List

May 7, 2010

Recently I have learned visual basic 2008 express edition and developed programs for data crunching and analysis. The VB 2008 express edition has microsoft visual studio 2008 v. 9.0.30729.1 SP and .NET Framework version 3.5 SP1. Now I want to create x-Y (date-Y value) graphs using the crunched data stored in an array list simulating a data base access. I download and installed the "Microsoft Chart Control for .NET Framework " and try to learn to use it within the VB 2008 express edition using the tutorial. It seems that the chart control did not get installed?

1. Do I need at VB 2008 professional to allow using the chart control?
2. Why after installing chart control, there is no change on the items under the NET components within the Toolbox>ChooseItem>.
3. How do I get to use the chart control under VB 2008 express edition.
4. Any code available to generate versatile graphics without using the chart control? Because the chart control has tons of classes already it seems the best is to just use the existing and downloadable chart control?

View 8 Replies

Determine If Property Is Generic List<of T> Via Reflection And Loop List Items

Oct 1, 2009

I'm looping all the properties in an object via reflection:

For Each p As PropertyInfo In values.[GetType]().GetProperties()
If p.CanRead Then
'Do stuff
End If
Next

how to determine whether the property in question is a generic List(Of T)? If it is I need to loop the list itself.

I've experimented with GetType and TypeOf but have not managed to get anything working.

To clarify, I want to keep this generic. I do not want to specify the type of T, I need to loop the list items and call the ToString method on each item. T could be one of a number of different types (application specific reference types). Is it possible to do this without specifying types?

(VB.NET 2005 with .Net 2.0)

View 3 Replies

VS 2008 Binary Serialization - Save An Array Into My .bin File Then Read The Array Again

Nov 27, 2009

Can I save an array into my .bin file then read the array again just like a string or Integer??

View 2 Replies

Read Part Of Text File Into 1d Array Other Half Into 2d Array?

Mar 28, 2012

im trying to make an example program for a teacher friend of mine

Springfield
Toledo
Youngstown

[Code]....

thats just what i have so far but im really having trouble getting the other part into a 2d array. i want the second half to look like this when done: the oppsite of what it looks like in the file.

001
359
203948

View 3 Replies

.net - Returning A List Using Entity Framework, 'System.Collections.Generic.List Cannot Be Converted To '1-dimensional Array

May 3, 2012

i have issue returning a list in a web method. here is the code

<WebMethod()> _
Public Function getTags(para_parents As String) As List(Of getTypeDetailsByParentName_Result)()
Dim context As New PPEntities

[code]....

the error is

Value of type 'System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)' cannot be converted to '1-dimensional array of System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)'

View 1 Replies

C# - Count Occurences In Byte List/array Using Another Byte List/array?

Jun 20, 2011

I am trying to get a count of all the times a byte sequences occurs in another byte sequences. It cannot however re-use a bytes if it already counted them. For example given the string let's assume the byte sequence was k.k it would then find only 3 occurrences rather than 5 because they would be broke down like: [k.k].[k.k].[k.k]. and not like [k.[k].[k].[k].[k].k] where they over lap and essentially just shift 2 to the right.

Ideally the idea is to get an idea how a compression dictionary or run time encoding might look. so the goal would be to get down to just 2 parts, as (k.k.k.) is the biggest and best symbol you can have.

Here is source so far:

[Code]...

View 3 Replies

VS 2010 Loop Through XML Doc's And Read?

Jun 6, 2011

I currently have a function that loads an XML and takes all of the nodes and makes an object with them and adds them to an array.I need to be able to now see if there are more than one xml doc in a folder, and if so also add their objects to the array until all of them have been read. How would I go about doing this? I've been searching through the System.IO. to see if I could find something but I haven't been able to yet.

[Code]...

View 2 Replies

.Net List To A SOAP Array And Back To A .Net List?

May 20, 2009

I have a class called Car. Car has a bunch of properties i.e. Car.Color. CarService has a method called GetCars(). Within GetCar, I have a loop that appends a List of, you guessed it.. Cars.[code].....

I get: Value of type '1-dimensional array of Namespace.Car' cannot be converted to 'System.Collections.Generic.List(Of Namespace.Car)'. What would be the best way to convert this 1-dimensional array' back into a List of Cars?

View 2 Replies

Create An Array Of List (not Arraylist) From A List?

Dec 15, 2009

I have a variable declared as...

Dim MyList as List(Of String)
I would like to create an array of these lists of string.
Something like....

[code].....

View 14 Replies

Loop Over Record Set With While SqlResults.Read()

May 28, 2009

I'm trying to loop over record set with While sqlResults.Read() But it seems that if i only have one record in the collection it will skip it and won't enter the loop, is there some kind of fix to this?

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved