VS 2008 List Of String Function?

Oct 8, 2011

I have added a module to the project. Inside the module I have the following

Public Function ListOFT() As List(Of String)
Return ListOFT
End Function

When I try to add something to ListOFT I get:

Quote:

Object reference not set to an instance of an object.

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.net - Function To Accept List(Of String), Array & String And Similarly Return List(Of String)?

Jul 29, 2011

I want the Function to accept List(Of String), Array & String and similarly return List(Of String), Array & String respectively. The Function simply adds a string (month) to the input collection. I just want to use it for string, array and list with needing to think of conversions.

[Code]...

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Retun List Of String From A Function

Nov 27, 2010

i'm trying to return List(Of String) from data layer..When i run these code,it returns null value,but i use string instead of List(Of String),it return single value..

Data layer
Imports System
Imports System.Collections.Generic
Imports System.Text

[Code].....

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VS 2008 - Class Ranking List Box Has An Enum Function?

Dec 7, 2010

Application: Arrays are to be used for this. When button Add Student is clicked it should add all the information for a student and when Show Student button is clicked it should prompt the user for student's last name and student's information in a message box. Class ranking list box has an enum function to it and has to be stored be show along side other answers.NOTE: FindItemIndex if from the last application I did, i am suppose to use it in this one,so you can modify it the way you want.

[code]...

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VS 2008 Aking DLL's For Software To Extend Its Function List?

Nov 5, 2009

Has anyone ever used Game Maker 7?

I was wondering, if anyone had any information on making DLL's for this software to extend its function list.

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VS 2008 List ODBC And OLEDB Drivers Installed Function?

May 24, 2011

Can anyone tell me how to list ODBC and OLEDB drivers that are installed in the windows system?

I want to display them in a DGV and create a connection string from the users choice.

XP,Vista and Widows 7

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C# - With LINQ, How To Transfer A List<List<string>> To List<string>

Dec 15, 2010

I got an object of List<List<string>>I need to bring this into a ist<string>I have no idea how to do this with LINQ.

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VS 2008 Function To Validate String - Only Numeric Characters?

May 9, 2009

is there any function to validate if a string has only numerical characters? I can cross character for character and verify if it is a number. But I look for something simpler or if already a function like that exists.

I cannot use IsNumeric or IsDigit because it returns numbers to True with point or comma.

I need only numeric characters (no comma nor points

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VS 2008 String Compare - Why The Fallowing Function Returns 0

Jun 1, 2012

is string.empty = "" why the fallowing function returns 0

vb.net
Dim String1 As String = String.Empty
Dim StringEmpty As String = ""
MessageBox.Show(String.Compare(String1, StringEmpty, False))

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VS 2008 Parse Text For Fields - Get A String List Of All Values Within [] In A String Of Text?

Oct 18, 2010

What would be the fasted method of get a string list of all values within [] in a string of text? For example: [client_name], are you are doing today? My name is [my_name]. The list of strings would be:

[Code]...

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Pass Generic List To A Function That Has A Custom Defined List

Apr 7, 2011

it seems always at this time I cant figure out how to do something maybe it has something to do with lunchtime.

Im having trouble using a method that is defined by an outside company

This is a link to their integration guide:

[URL]

This is their documentation for the class Im trying to use

OrderQueryWebService Class

This class is for SID in particular and is made for use with the notification methods. This is for the Order Query Web Service specifically, allowing clients to return the status of transactions for their merchant, whenever they want to.

Methods
/ <summary>
/ Pass through the variables required and receive a list of Transaction
objects showing transaction status

[Code].....

The MerchantCode, the MerchantUsername, the MerchantPassword are all good the List is a custom type called SetComHash.Transaction

Everytime I try adding a string to the list such as the transactionNumber and some other values it gives me a type error:

"Value of type string cannot be converted to 'SetcomHash.Transaction'

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VS 2008 String List From DataGridView?

May 27, 2009

I have a DataGridView and i want to build a string list from that. i have tried many way wothout a good result.

I need to build this list of string and after that to make a single string to send it via e-mail

[Code]...

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Convert String To Form Object To Invoke Function Using 2008?

Mar 1, 2012

In My project, i have Multiple Forms in which same Function name with return values. i like to convert the String name to Form Object and try to call the user defined function in the corresponding form from the Module I am using vb.net 2008 .

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VS 2008 : Get Fullnames From List (of String) Using LINQ?

Oct 18, 2010

I have this vb code in my asp.net webservice.

<WebMethod()> _
Public Function GetUsers(ByVal prefixText As String, ByVal count As Integer) As String()
Dim UsersList As New List(Of String)

[code]....

However, This returns all the users from my user table. I want to get just the users where the fullname is like the prefixtext variable that is passed in to the function.Now I need to use LINQ(the only way I can think of). But how do I change my code.

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VS 2008 Searching List(of String) For Duplicates?

Jun 28, 2010

Okay so i have a very large list of string (500 000 strings) i want to check the number of duplicate strings and maybe even isolate the duplicate strings if i can.

i cant find a fast method to do so :S

i tried using a string array (slower than list) takes ~15mins

i tried using list with the code below takes ~10 mins

that wont cut it :S i need something faster.

[Code]...

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VS 2008 Split String - List Of Files

May 15, 2010

I have a range of strings (Basically filenames) and I want to strip them down. Basically I load a list of files (path/clubs/) and it lists them into a list box as club1.adf club2.adf etc. I then select club1.adf for example from the list box, and hit a button. The button then loads path/club1 into my application. So basically I want to split the .adf from the club1. Something like the following, I imagine?

[Code]...

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VS 2008 Loop Causing Duplicate In List Of String?

Aug 21, 2009

Basically what happens is each time it loops through it adds a number to the end of the string, and by the end I should end up with an array full of string in a format like "111 222 333 444 555 666" but I end up getting strings like this "111 111 222 222 333 333". The weird thing is, if I add a message box in every loop it works fine, but obviously I don't want a message box pooping up every time it loops through. What is causing this and how might I fix it

The code is:
For x As Integer = 0 To (NumCards.Value - 1)
NumRep = 0

[code].....

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Error On Returning List Of String 2008 Desktop Application

Nov 22, 2010

I'm trying to create a ntier desktop application using vb.net 2008.I'm trying this [code]...

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Getting A String From A List Box On One Form To A List Box On Another Form In VB 2008

Oct 17, 2010

I need to get a string from an items collection in a list box on one form to a list box on another form in VB 2008. Here is the code (I've tried a couple ways in the code to get the values over).

Public Class frmPrintBooks
Private Sub btnClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles btnClose.Click

[Code]....

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Algorithm String - Function Encrypt And Function Decrypt ?

Jun 13, 2011

I have 1 string : abc @#ABC.xyz123ZYX

Now I need to encode the string:

The encoding alphabetic characters,

CODE:

With this string, after encoding, the result is: zyx @#ZYX.cba123ABC

About Function Encrypt and Function Decrypt?

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Call A Function / String That It Uses Will Be Given To Function To Initiate A Download?

Aug 21, 2009

Some programs implement command parameters, Like my favourite computer game - Crysis - has them and windows media player has them.But how could i implement them in VB.NET..I want to have a component of my program built as a seperate exe - so it can be an Optional component.But of course the seperate exe, on load, needs data passing to it.So i need something like Process.start("Componentname.exe", "/StartDL <Suchandsuchastring>)/StartDL will need to call a function, and the string that it uses will be given to the function to initiate a download?

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String Concatenation String + Function Output + String = String + Function Output And No More?

Feb 4, 2010

The following output produces a string with no closing xml tag. m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString() + "</G3Grid:Spots>"

This following code works correctly

m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString()
m_rFlight.Layout = m_rFlight.Layout + "</G3Grid:Spots>" 'add closing tag

What's going on here, what's the reason the first example isnt working and the second is?

The gvwSpots.LayoutToString() function returns a string.

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Play With List Of List Of String With Javascript Or Jquery Using Ajax?

Dec 5, 2011

We're working on a big ASP.NETVB.NET website project. I need to populate three dropdownlists. To last two are independent of the previous ones. The population data comes from an SQL Server. I'd have no problem doing this with code-behind with post back but we don't want any PostBacks so I started to develop this in AjaxjQuery.

[Code]...

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Cast/convert From List(Of DataRow) To List(Of String)?

May 22, 2012

I'm trying to solve a problem regarding types of list. First of all I have a stored procedure in my DB which does a select of a single column and I try to proceed it in my app in VB. By making a method function I declared a DataTable that loads through the SqlCommand(with the CloseConnection behavior). After that I publicly declared a List(Of String) which needs to be populated with the rows/items from the stored procedure that is on the way. Below is my snippet of the code:

Dim dt As New DataTable()
Try
If conn.State = ConnectionState.Open Then

[Code]....

It's LPrefix = collection.Cast(Of String)() where I get an exception error telling me that I can't really convert it. The old fashion way is to iterate with for/for each loop but that's not what I want for best use of performance especially if the list will have thousands of rows from a single column. So basically, I want to insert those items from that DataTable to the List(Of String) without For/For Each loop.

Running on VisualStudio2010 Ultimate, .NET FrameWork 4.0.

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String Function(s) To Change Only First Letter Of String To Upper Case?

Dec 20, 2010

string function(s) to change only first letter of string to Upper Case?

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Vb.net - Convert From Custom List To List Of String

Mar 25, 2010

I have the following code:

[code]...

The intention is to convert an IList of custom objects to a string equivalent comprising each element in the Ilist. Unfortunately I can't seem to find a way to get the underlying data of the custom object, and of course as in the above example, using object simply gives me a string of types definitions, rather than access to the underlying data.

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Compare List(Of String) To Another List(Of String)

Dec 30, 2009

I have two List(Of String) both containing several hundred thousand results.

Private Function AddUniqueFiles(lNewFiles as List(Of String)) As outList(Of String)
Dim aCounter As Integer = 0
Dim files As New inList(Of String)

[Code]....

However the time it takes to do this comparison can be very long indeed - is there a better way of doing this type of comparison... All I am trying to do is add values from List2 in to List1 which are not already present in List1 - So in effect adding new Unique values found in List 2 in to List 1. I am only looking for performance improvements - nothing else.

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Sorting - Sort List(of String()) Using A Variable Index Into String() As Key ?

May 30, 2012

I have a List(of String()). I have written a custom comparer (implements IComparer(of string)) to do an alphanumeric sort.Is there a way to sort the List using a given index to determine which position in the String() to sort by? In other words one time I might sort by Index = 0 and another time by Index = 3. The length of all String() in the list is the same.For reference this question is similar to Sort List<String[]> except I am using VB.net and that question is hardwired to Index=0.

EDIT from OP's comments:I started simple with the non custom comparer but I am getting an error: expression does not produce a value. Not sure what I am doing wrong.Here is the code:

Public Shared Function SortListOfStringArray(ByVal ListOfStringArray As List(Of String()), ByVal SortByIndex As Integer) As List(Of String())
Return ListOfStringArray.Sort(Function(x, y) x(SortByIndex).CompareTo(y(SortByIndex)))
End Function

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Vb String Function - Get The Sub String That Is Talking About Length

Nov 4, 2010

If I have a string Metal is hot : Metal length is 5 cm ; Metal is red. I want to get the sub string that is talking about length: hence I want to extract "Metal length is 5 cm".

[Code]...

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VS 2008 Random - New Character Out Of The String And Then Remove The Character From The List Of Characters

Dec 12, 2010

[Code]...

For each character of this string I want a new character out of the string and then remove the character from the list of characters that still maybe used for other characters. It may not get the same character, you could basically just call this encryption, but it's not what I am making. I don't want to waste my time doing this one hour while VB can do this for me in <1 second.

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