Passing A Value To A Function?

Mar 22, 2011

I have a question concerning some homework. Here is my answer:

Dim intResult As Integer
intResult= Square(4)
lblResult.Text = CStr(intResult)

Now, if I understand functions correctly, this statement should pass the value 4 to:

Function Square( ByVal intValue As Integer ) As Integer
Return intValue^2
End Function

...and assign it's return value to "intResult".

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Passing A Value Of A Function Into A Text Box?

Feb 21, 2010

Private Function Token() As String

Dim Length As Byte
Length = 10
Dim Chars As Char() = New Char() {"a"c, "b"c, "c"c, "d"c, "e"c, "f"c, _

[code]....

is the above bolded line a correct .. it s not working too and the above code is used to generate a random password for users which should be displayed on the text box?

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Passing Arguments To A Function?

Aug 3, 2011

I am having a problem figuring this out. The text that is bold is where the problem is.

Imports Microsoft.Win32
Console.WriteLine(WMILookup("Win32_Bios","SerialNu mber"))
Private Function WMILookup(ByVal WMIClass as String,ByVal WMIItem as String) As String

[Code].....

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Passing Double Value To Function

Sep 8, 2010

I have a .aspx webform, with code behind to handle data entered by user, most fields are in double.At business layer, at other class, let say there is a function: [code]I just wondering whether this is the correct way of writing it? And if I have more than 20 fields of double value, then I should declare additional 20 double value?

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Passing Textbox Value To Function

May 27, 2010

I have a function that search database based on the 2 textbox value. I have a difficulty to call the function and pass the text box value to the function. This is my function: So I get this error:
{"Object reference not set to an instance of an object."}

Function getname(ByVal SearchedName As String, ByVal SearchedFirstName As String) As String
Dim temp As New System.Data.SqlClient.SqlCommand
Dim temp2 = ""
Dim sSQL = " select SearchedName, SearchedFirstName from student where SearchedName =@SearchedName AND SearchedFirstName = @SearchedFirstName"
[Code] .....

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Passing Xmlnode To Function

Jan 31, 2012

I have function in my asp.net/vb application with following signature:Public Function ExtractText(node As XmlNode) As String..I want to call it/pass xmlnode. How to create an Xml node with value:<mynode Id="7743" Type="context" StartNode="4356" EndNode="1234"></mynode>

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Call A C++ Function From Net Passing A 2D Array?

Jun 23, 2011

I am trying to call the method with the following declaration[code]...

The structs should both be twodimensional arrays with indexes of 4,4 and 5,4 respectively. The second one is an out parameter.

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Call VBA Function With Parameter Passing

Dec 29, 2008

I wrote vba function in excel and I want to call this function in vb.net with parameter passing.

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Passing A Class Reference To Another Function?

Jul 19, 2011

Let's says I have a class called Customer :-

Code:
Dim Cust as New Customer("Fred")

I also have a function in a seperate class :-

Code:
Shared Function Example(Example As Customer)

How do I refer to the class itself from within itself? For example :-

Code:
' from within the Customer class, call the Example function
AnotherClass.Example(Me??)

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Passing A Constant Array To A Function?

Jul 23, 2009

pass an array to a function, like the code below shows

Private Sub SomeFunction(ByVal PassedArray() As String)
For i As Integer = 0 To PassedArray.Count - 1
Debug.WriteLine(PassedArray(i))

[code]....

But is there a way to pass a constant array to a function in VB .Net, for instance in PHP you could write

function SomeFunction($array)
{
for($i=0;$i<count($array);$i++)
{

[code]....

So to reiterate: Is there any way to pass a constant array directly to a function in VB .Net? Is there any benefit in doing so? I imagine a few bytes of memory could be spared.

PS.SomeFunction({"some", "array", "member"}) ' this obviously gives a syntax error

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Passing A List's Enumerator To A Function

Dec 2, 2011

It looks like passing a list's enumerator to a function "byval" is quite different than passing it "byref". Essentially, regular "byval" passing will NOT change the caller's "enumerator.Current value", even if the function advances the enumerator. I was wondering if anyone knows why this is the case? Is an enumerator a primitive like an integer, without an object reference, and hence changes to it don't get reflected in the caller?This function is byval, and gets stuck in an infinite loop, spitting out "1" message boxes, because the enumerator's "current" never advances past 5.[code]The difference between the two functions is only whether the listFirstItem__ function accepts a byval or a byref enumerator.

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Passing A Multidimensional Array Into A Function?

Apr 30, 2009

I am trying to use a simple quicksort routine for a multidimensional array but cannot figure out the syntax. I am stumped because it works fine in VB6 but no luck in .Net

Array Declaration:
Dim sArrIn(25000, 3) As String 'sort key (pkg, kitting, zip), kitting, data
Function Call:

[Code]....

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Passing A Two-dimensional Array To A Function?

Jan 6, 2011

I am missing something obvious here

I have an array that is declared as

Dim
array1(,)
As

[Code]....

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Passing A Value Of Text Box In Javascript Function?

Feb 18, 2010

MotherTongueTxtBox.Attributes.Add("onblur","val_Length(MotherTongueTxtBox.text,"hi friends",Length);")

in the above statement val_length s a javascript function in tat function the first parameter shd b the contents of the text box ,the second parameter s a string type, is the statement correct i think it s wrong can u suggest a correct valid statement

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Passing An SQL Function When Using DataGridView And CommandBuilder?

Nov 16, 2011

Trying to generate a Datagridview based on a query which is working fine.

Basic method is:

Create DbAdapter (MySQL) Create DataSet Fill Dataset with DbAdapter.Fill Set Datasource of DG to Dataset
Works fine, have used a commandbuilder to handle updating, inserting and deleting. Where this doesn't work is if I pass a MySQL function in my query, e.g.

SELECT FROM testtable TestID, SomeFunctionForward(someproperty), anothersfield

A quick check shows the field omitted from Update and Insert. How do I go about 'setting this property' so it will work on the query with the CommandBuilder. It needs to be done in inverse, i.e.

INSERT INTO testtable TestID, someproperty, anothersfield VALUES SomeFunctionBackward("somepropertyvalue"), "anothersfieldvalue"

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Passing Combobox.selecteditem To Function?

Jul 4, 2009

i have a very simple problem but i can't figure how to fix it.I'll explain, i have 3 array named "Auto, Legumes, Films". I i making a function so whenever the selecteditem of the combobox change(Auto, Legumes or Films) the name of the selecteditem is passed to a function. The function use this name to display the items of the corresponding table in a listbox.The 3 different item name in the combobox match the name of the 3 tables, so i want to be able to re-use the name dynamically in my function.

Code where i call the function:
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cbchoix.SelectedIndexChanged

[code].....

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Passing MethodBase.GetCurrentMethod() To Another Function

Dec 9, 2011

This maybe academic but I'd like to be able to pass the MethodBase.GetCurrentMethod() to another function. That way I could split apart the different parameters in one place. What I'm currently doing is something like this...

Sub SomeSub()
Try
'Some code that does work for the app...

[Code].....

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Passing Null Decimal Value To Function?

Jul 20, 2010

I have a Function within a data access layer, which accept a number of parameters. Among these is a decimal value, but in some cases the decimal value with be NULL, here is the code from the function

I am using the following code in my code file to pass the value to the function...

Convert.ToDecimal(textbox1)

How can I pass a NULL value to my function?

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Passing Parameters To Delegate Function?

Nov 21, 2010

I need to convert the following C# code to VB.NET:

public bool TryGetRewriteMatch(UrlContext url, out RedirectMatch match)
{
// NOTE: Normally this would use regular expression matches, cached database

[Code].....

However, I need to reference Url and ProductID in the function and I don't know how to pass them as parameters or get their values from the original function.

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Passing String Returned From Function?

May 2, 2012

I'm trying to establish a connection to my SqlDatabase while getting the connection string from a function. This will eventually lead to dealing with the appconfig file, but for now I'm just getting the basics established.

Imports System.Data.SqlClient
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

[code]....

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VS 2008 Passing Controls To A Function

May 4, 2009

I'm making the transition from VB6 (at which I was quite proficient) to VS2008, and I'm running in to a few 'snafoos' as I go. The most recent one (which I haven't yet been able to work out) is I'm trying to figure out how to pass a control (specifically a 'picture box' if that matters) to a function in a seperate class. This was pretty straight forward in VB6, but for the life of me, I can't seem to figure out how to declare the subroutine.

[Code]...

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VS 2008 Passing Data Through A Function?

May 3, 2009

what i am doing is passing data through to a function, the function does a basic check if the file passed through exists then say so in the listview

function:

Function checkIfCredentialsExist(ByVal Check As String)
Try
If File.Exists("credentials/" & Check) Then

[code]....

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Error In Passing Structure Array To Function

Nov 7, 2011

I'm a beginner when it comes to Visual Basic coding and I need some help with an error I'm getting. I'm trying to pass a structure array to a function to figure out a student's grade. I'm getting the error that 'QuizOne' is not a member of System.Array. Here is my code:

[Code]...

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Make A Function Passing Array Paramters In VB6?

May 19, 2010

i make a function passing array paramters in VB6 Public Function PolCoefCalc(pT() As Double, pU() As Double, pN As Double, pA() As Double) As Double

Dim return as double
returnStatus = 0
PolCoefCalc = returnStatus
End Function

[Code]...

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Passing A Array As A Argument To A Javascript Function?

Apr 20, 2011

Im trying to pass a array as a argument to a Javascript function from code behind(vb.net)
Code im trying

[code].....

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Passing A Combobox Reference As A Function Parameter?

Sep 23, 2008

The case is that I have two comboboxes (country and state) and a simple code to populate the state combobox accordingly depending on the selected country. Ok this is simple and easy, and this code is within the country combo change event.The case is that I have more than one pairs of those comboboxes and I wouldnt like to repeat all the populate code into every country combo change event.Actually I would like to have only one function and just call it passing as parameter a reference to the combobox I want to populate. Then I could use that reference into the function.

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Passing Control As Parameter To JavaScript Function

Sep 27, 2011

I am trying to pass a control's id to a javascript function that adds the value of it (the control which is a textbox) to a listbox but apparently I am not getting it right.

<input type="button" ID="btnAddtoLstBox" value="" title="Add this to the list" onclick="javascript:addToList(document.getElementById(btnAddtoLstBox));"
class="ui-icon ui-icon-refresh ui-corner-all" style="width: 20px; height: 20px; background-position: -64px 80px" />
[Code] .....

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Passing Variable Or Function As Query Parameter?

Mar 2, 2009

I am trying to run a query an Access db from VB. The general query which I want to run is

SELECT * FROM Patient WHERE Patient.PatientID = ?
or SELECT * FROM Patient WHERE Patient.PatientLname = ?

I tried using an input box which captured the user input and pass that variable to the query, but that failed.Then I read about writing a function and using that, however, I keep getting an error which says Function not defined, but when stepping through the code, it seems to work. Here is my function:

Module Module1
Public Function LookUpNow(ByVal userInput As String) As String
LookUpNow = userInput
Return userInput

[code]....

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VS 2008 - Passing Class As Argument For Function

Mar 23, 2010

VB.NET is not letting me dance with both feet, or piss with both hands. I've got one foot and one arm tied behind my back at every turn. I want to use this statement in a function:
Return CType(Formatter.Deserialize(FS), DS)
Seems doable, right?

Function ReadFileStream(ByRef FS As FileStream, ByRef DS As Object)
Dim Formatter As New BinaryFormatter
FS.Position = 0
Return CType(Formatter.Deserialize(FS), DS)
End Function

Right? I mean, CType only accepts a class name as the second argument. I can't give it an instance of a class, or it croaks. Yet if I try to pass the class name as the argument to that function:
DataInfo = ReadFileStream(FileStream1, DataStruct)

VB.NET croaks on this, too, complaining that "'DataStruct' is a type and cannot be used as an expression.". It's used as an expression by CType just fine outside of the function. Does the VB.NET legislature provide a clause that allows for a 'Type' to be passed as an argument in a function? Writing all the supporting code ten million times to deserialize a file using CType ten million times in a large application will get very complicated and tricky very quickly. It should be handled by a routine so that any cases and adjustments that come up can be dealt with in one spot.

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VS 2008 Passing Form As Paramater To Function?

Sep 24, 2010

I have a function that requires a form passed to it. Currently im using:ByVal oThisFormA As FormIf I do this though, obviously where I require txtboxes etc from the form being passed in arent recognised. e.g txtSurname is a textbox on a form called frmCustomer I have, but unless I use byVal oThisFormA as frmCustomerI will just get an error txtSurname is not a member of System.Windows.Forms.Form

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