Passing Variable From Useform To Module
Jul 15, 2010
I have a useform set up to have a user input value, and I would like to pass that value to a module. I have made the variable public along with the subroutine that I am trying to use the variable in. I have a message box display the value of the variable in the subroutine and the value is 0, even though I have inputted a value in the userform.
[YearForm]
Option Explicit
Public Sub UserForm_Click()
Me.intYear.Integer = Year
Module1.OpenFile Year
[Code] .....
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Jul 21, 2009
passing values from the main form.
I've tried declaring the array globally in the module The array() is going to be used in other forms as well.
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Dec 15, 2011
I tried to access a variable using a module with this code:
Module DataModule
Public x As Integer = form1.trackbar.value
nd Module
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Jun 11, 2010
I declared the variables with in the first module to be loaded
Module Mod_Global Public DtFRM As String Public DTTo As String I can load the variable and read it with in the module. Ok, good so far. But sending the code to another module results in nothing in the variable.
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Dec 30, 2009
I have an issue with an app i am writing, i need to make a variable accessible to any module or class within the project but that cant be accessed outside of the app as it is accessing info the end user shouldn't have access to.
Ok, well a practice i have gotten into in the last few years is to declare a module on the same page as the main form and declare variables either friend or public (global variables). with my app public is not good so i tried Protected Friend but i cant use this within a module.
I tried placing it at the top of the main form but one of my classes can't access it, what would be the right way to do as expected. besides the main form i have 2 classes call them class1 and class2:- main interacts with both classes class1 accesses class2 class2 doesn't access class1
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Dec 15, 2009
It is my understanding that all modules are initialized and that all their variables are set up prior to MyApplication_Startup. I have code that has worked well for quite some time (XP and Vista).The Myapplication_Startup code references variables and code located in a Module.However, with Windows 7 this does not work.Anny reference to a module (Data, SUB or FUNCTION) throws a Type Initialization error at runtime. How can I correct this behavior in Windows 7?
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Feb 4, 2012
I have an issue with variables that are used to name For-Next loops. I have had this problem in a couple programs but not consistently, i.e. some variables work, some throw a warning (not an error).
The situation is this. I declare the variable along with all my declarations in a module-
Module MainModule
Public Counter1 As Integer
end Module 'MainModule
[Code]....
The type for variable 'Counter1' will not be inferred because it is bound to a field in an enclosing scope. Either change the name of 'Counter1', or use the fully qualified name (for example, 'Me.Counter1' or 'MyBase.Counter1'). In the past I've always broken down and changed the names to get rid of all those ugly warnings. Sometimes I have eliminated them from being declared in the module and declared them at call time. This is not how I program and I like to keep consistency throughout.
how I can get rid of this spotty, on-and-off nonsense? There is obviously a lot I don't understand about VS and I would have never taken it up but would have stopped 3 languages ago if I weren't forced into bulkier and bulkier languages (sorry about the rant. I feel OK now).
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Nov 29, 2009
I have a public readonly variable in a module, but when I try to set it in my form load event for the first time I get 'ReadOnly' variable cannot be the target of an assignment. It is my understanding that a ReadOnly variable can only be set once and after that you would get an error when setting it.
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Feb 16, 2012
Got a question regarding declaring a variable. Basically I have a module that writes to a text file using textwriter which is declared for the whole module to use at the top of the code. But what I want to do is clear the contents of the text file when the program is executed (using file.writealltext). The problem I have is that the file is obviously already in use as a result of the textwriter and the file cannot be modified because of this.
My question is: is there any way of declaring the textWriter object later on (not during the initial initialization of the module) without passing the object between functions? Setting the variable as inactive or something along those lines during initialization would be ideal.
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Mar 13, 2009
I just need to know where my code is jacked -up at, I get an error when I created the module level variable ( class statement must end with a matching end class) problem is that every time I add an end class the next procedure is wrong with the same error, so what can I do to resolve this and why is this error coming up. Ultimate goal of this program is to add the invoice totals to the next element in the array each time the user clicks calculate, which displays in a message when the user clicks the exit button, also this code will sort the invoice totals in the array.
Public Class frmInvoiceTotal
Dim SumInvoice(4) As Decimal 'Delareation of two module- level variables
Dim I As Integer = 0' the index I can use to work with this array
Private Sub btnCalculate_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnCalculate.Click
[Code] .....
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Dec 14, 2011
I am using a function that is provided by the maker of an IO device that I'm using and the call for this device turns on and off the 16 ports on the IO device by sending the value true or false to the board. The call is as follows:
[Code]...
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Oct 13, 2009
here's the snippet of my code that im trying to solve since last week...
icePayment.aspx If (Left(Request.Form("return_url"), 7) <> "http://") Then
errorInput = errorInput & "Invalid return URL path! <BR>" errorExist = True
Response.Redirect("InvalidUrlError.aspx")
Else
[Code]...
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Nov 25, 2009
I've got a console app with a sub main then i have a seperate class inside the module..i can't seem to update the public global variable from inside the class as i can't declare the variable as shared...
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Aug 18, 2011
I have a variable that gets a value in a js function. I need to get its value as a double into a vb.net variable. I have tried putting the variable into a label then grabbing it from the label in vb.net as shown in the code below:
[Code]...
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Feb 18, 2010
Dim SecondName As String = SecondNameTxtBox.text()Is the above statement a correct one?Here I want to assign the value of the text box into tat "SecondName".If it's wrong, please tell me the correct way to write this statement.
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Nov 15, 2011
how to pass value from database to a variable.
This is my query:
Dim it As String = "Mouse"
Dim itNo As String
SELECT * FROM tblITEquipmentName WHERE equipmentName LIKE '" & it & "%'"
I would like to get the ItEquipmentNo and pass it to variable itNo
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Jun 15, 2010
i have 2 forms -> form 1 and form 2
in form 1 -> 1 button
in form 2 -> 1 textbox and 1 button
when I click button in form 1, it will show the form 2..how can i pass the variable (data from textbox in form 2) into a variable in form 1 after clicking the button in form 2 ?
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May 22, 2012
this is the linkbutton
<asp:LinkButton runat="server" ID="linkId" OnClick="doSomething(10)">ID
</asp:LinkButton>
and this is my sub
[code].....
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Jan 15, 2010
I know in VBA you could pass an entire form as a varible. Since using global variables are not advised in .net 2008, is there anyway to do this ?
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Nov 23, 2011
Not sure how to do this sub that passes a variable that is used in a Dim.
fill_in_field("main_form.WebBrowser1")
Sub fill_in_field(ByRef WebBrowser As String)
Dim ElementCollection1 As HtmlElementCollection = WebBrowser.Document.GetElementsByTagName("input")
End Sub
Dim ElementCollection1 As HtmlElementCollection = WebBrowser & "Document.GetElementsByTagName("input")"
This is what I would like.
Dim ElementCollection1 As HtmlElementCollection = main_form.WebBrowser1.Document.GetElementsByTagName("input")
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May 18, 2012
is there a way i can do like this in vb.net
[Code]...
what i want is that idx keeps incrementing after each line, without incrementing it on a seperate line.
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Jul 6, 2009
I want to know if it's possible to retrieve the variables name from when it was passed into a certain function. For example, if I call parseId(myId) to a function with the signature parseId(id), i can obviously retrieve the value of 'id'. However, is there any way I can retrieve 'myId' as a string (without passing it as another value)? Specifically in vb.net, but I'm interested in how it would work in any given language.
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Nov 15, 2010
I have a public variable that I declared in form1 of an application. I am trying to call that variable in form2 and then pass that variable in a sql query. If I declare:
Public Class Form1
Public payPeriodStartDate, payPeriodEndDate As Date
How then to I declare that variable in form2 and how to I pass it to my sql query.
Here is the code I have for form1: [Code]
and when I debug this form, no data will appear. I'm sure that it's something wrong with how I'm either calling the variable in form2 or in the query. Can anyone offer any assistance on this?
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Apr 26, 2011
I have 2 dropdownlists, one is State and the second is City. I am trying to create it so, when a user clicks the State, the second dropdownlist is populated with City names from a datatable.[code]
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Oct 20, 2009
passing a variable to a sub procedure by reference. Not sure I understand how it works. Here is the code.
Private Sub bntcompute_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bntcompute.Click
Dim x, y As Double
getnumbers(x, y)
displaysum(x, y)
[code]....
Is the newly modified variable actually being Passed back? and If so where in the statement is it passed back. is it being passed back to the call getnumbers or is it passed back to the statement displaysum?
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Nov 29, 2011
I'm using MVC2 with jquery.I'm trying to open a partial view in a jquery Dialog container, passing an itemID of an object to be deleted.What I'm doing to accomplish this is passing in an action that renders a view to jquery, which I can get to work without variables.f I try to pass in the ID of the object to be deleted, the action doesn't even trigger.
Here's my jquery code:
$(function () {
var itemToDelete
[code].....
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Feb 18, 2010
Doing a small project where I would like to be able to print the results of certain calculations. I want to open a new form where the data can be neatly presented and printed. I just can't seem to make the data get passed along to the new form when I open it..
[Code]...
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Oct 5, 2010
Do you just need to format the date? Such as msgbox(New Date(2010, 1, 1).ToString("yyyy-MM"))
Or do you need a hashtable:
[Code]...
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Sep 3, 2009
I have a form with a list box. I'm calling it as a dialog. I can get the result of which button was pressed (OK/Cancel) but how do I get the value chosen from the list?
Dim frmCreateCSVFile As New CreateCSVFile
frmCreateCSVFile.dtpFirstEndDate.Value = dtpFirstEndDate.Value
frmCreateCSVFile.dtpLastEndDate.Value = dtpLastEndDate.Value
[code]......
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May 22, 2011
I'm trying to pass value from form1 to form2, while both form is open.
Using New (Dim frm as new form2) only works when the form2 is not loaded yet. what if both forms already open?
PS: I don't want to use module since there will be a lot variable to pass and i don't want to maintain such large collection of variable in module.
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