VB 2010 - Linking Variables To Other Forms?
Feb 13, 2012
I have already made my GUI with multiple forms using VB2010 and made buttons that would open and close them (me.hide and form#.show)My problem is how could I use a variable I've computed and displayed on a sub-total (cashier of sorts) to be used on the main form where it would display the bill on a listbox?Here's how the button works to compute for the item sub total
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cstotal As Integer
[code].....
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Jul 7, 2011
how to share and edit variables between forms? I want the user to be able to enter a value into a textbox and the program store it and then load another form and do calculations and display answers but I can't get it to work.
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Dec 19, 2010
I was a VB6 programmer. And back in the day global variables, functions and subroutines were put in a module. The program started in the module using a sub named Main(). Now in vb2010 it looks like using sub Main() is possible only for console apps, which is not what I want, I'm still trying to write a windows app but it looks like everything has to go at the top of the starting form?? How is this good coding practice? Shouldn't public vars and functions be in their own module?What is considered best practice?Are there any links that would walk me through the differences between vb6 and vb2010?
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Apr 5, 2011
I've got a dictionary<string,string> that I need to access and use on several windows forms. In asp.net, I could store it in Session and use it from any aspx page. How would I do this in forms?
[Code]...
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May 29, 2010
I am new to vb.net. I am currently programming Space Invaders. Firstly i have two forms What is code for linking form 1 to form 2?
[Code]...
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Jan 29, 2009
I have one main form and another dialog box that is used to search records. What code is used to declare a public variable in the dialog box form in order to get the record found by the user displayed back into the main form?
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Nov 1, 2010
I am new to vb.net. I am currently programming Space Invaders. Firstly i have two forms What is code for linking form 1 to form 2?
Secondly i have coded and tried to understand arrays. I currently Have
Private Sub tmrUFO_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrUFO.Tick
[code].....
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Mar 1, 2011
i want to link text box of my software with the text box of the web page (i.e values entered in my software should be linked to values of web page E.g. username entered in software should be linked with username entered in yahoo/facebook site)
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Jan 13, 2011
Linking Comb Box Items to a Button to load a new formCombo box 3 has 2 items.....Item 1, Item 2i want it so if you click on the button when item 1 is selected it will load form3 and if item 2 is selected the same button will load form 4
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Nov 29, 2009
I have 1 project with about 7 forms. On each form I have 6 x 4 responses radio buttons (i.e. a multiple choice quiz). If the correct response is selected, the examinee gets 1 point, else 0. At the end of the quiz, the examinee can click a button that will add up all the correct responses & display the % correct. How do I program the button to do this given that data are on 7 different forms? [URL].
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Jun 14, 2010
I Have a problem with trying to get a checkedlistbox to work the way i want it to... Here are the 3 tables that i'm using. The links are shown in colour.
[Code]...
I have a checkedlistbox in a windows form: A Name textbox is linked to The Name in the Usertable
1.The DisplayMember in the checkedlistbox in the Area (Text) from the AreaID Table. This bit Works.
[Code]...
2.The ValueMember need to be the AreaID from the UserAreaTable
I need to do it this way because it allows me to add multiple areas to users, and add new area's without having to change the forms.
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Oct 25, 2010
i have made 2 seprate programs, is it possable to make a link between them. i have a "launcher" which is mainly for launching games and a web browser, soon i will have a music player also but at the moemnt i just want to merge the 2 progs i have atm... i have tryed opening 1 solution (launcher) and then i clicked file > open project and changed the option to "add to solution" instead os "close solution"
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Feb 4, 2010
When i'm clicking on a link in a page i've navigated to in my web browser it opens with Internet Explorer. How can i make it open in a new window with my webbrowser? I'm using a tab control inted of webbrowser control btw, you can post codes for both of them
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Nov 27, 2009
I seem to be running into an issue. This may seem like a noob question (which it really is, I only have experience in vb6 from years ago) but what Im trying to do is pass a variable from one form to another. Ive tried telling the first form to set the value of the variable on the second form like so frmsecond.variable = "value" but that does not work. Ive tried placing a public variable in a module to do it, but again, no luck. The only way seem to be able to get it to work is the second form setting the variable by reading the value from the first form like so [code]The problem I have with that code is what if for some reason the selected line gets changed as the form is loading or something to that nature. It doesnt seem very secure.
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Aug 29, 2009
i am writing an application that will require users to provide login details. After the user has logd in a second form will be shown. Allowing the user to change his/her own details. What i have a problem is, im not able to pass the variables, containing username and password in the login form to the second form. Ive tried declaring the variables as Public but when the login form closes the variable are reset to zero.
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Sep 29, 2010
I'm sure this gets asked a lot, but I can't seem to find an answer for it. I want to have my Form2 change a variable in Form1.
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Jan 22, 2012
i need to call upon variables from different forms, in my first form i make a variable called "temp" i then use [code]to open the new form and hide the first, is there a way to access temp ( the variable declared in the first form) in the second form?
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Aug 11, 2011
I would like to pass variables variables from one form to another but the thing is that there is no variable that is actually being passed. I have tried to use instanciation
Dim f2 as form2
f2=new form2()
f3.textbox1.text="Whatever I want to pass",
but this did not work
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Sep 6, 2009
I am having trouble passing variables between forms. Ive tried many methods but none seem to work. The first method I tried was to dim a public variable on the first form and call it on the second....no success
Form 1:
Public cliCode as string
cliCode = me.tbClientcCode.text
Form 2:
dim clientCode as string = form1.clicode
or
Form 2:
dim clientCode as string
On the Form2 load event....
clientCode = form1.clicode
With method 2 I created some classes on which form 1 loads and form2 access........
Public
Class frmClient
Private db As New ClientDataContext
Public clientInstance As New BusinessLogic.classClient
Public cliCode As String
[Code] .....
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Feb 17, 2012
Is it possible to share subscripted variables and their data between forms? So far I can't see the variables I made public in one form, in a second form.
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Oct 24, 2011
i would like to say i am a novice programmer, in year 12. I am designing a small game for my HSC and one of my forms is getting very cluttered with controls and code. To resolve this cluttering, i have had the idea to create new forms for some aspects of the game (such as different game modes and so on). However, in order for that to happen i have to drag some variables of the new form to the old form, (these variables would be just booleans or integers to say whether you lost a game or won a game or something that would carry on to the main form.)
[Code]...
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Mar 6, 2010
Code below just allow me to pass only one variable at one time..the code below show how to pass the platelabel to label3..
how can i pass 2 variable in the same time..[code]...
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Nov 10, 2011
I know this should be easy but I'm either having a brain fart or I'm just more inept than I thought; probably a combination of the two.
Passing a value to a form on startup is a piece of cake, but I don't think I've ever had to do the following before in all my ooooh, 8 months of programming:
I have a main form with a button and a textbox. The button opens another form with a datagridview. What I want to do is pass the selected value from the DGV back to the textbox on the first form.[code]...
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May 17, 2012
I have a Form1, the user types a "Client ID" in a textbox if it's not a valid one, it opens a Form2 in which the user selects the correct "Client ID", once selected he presses an OK button. And there comes the porblem.. it opens a new Form1 with the Client ID that he selected from Form2, but I still have the first Form1 opened.
I have two Form1 opened...
I which to keep the original Form1, but with the value sent from Form2..
I'm using this code:
Code in Form1
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
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Mar 6, 2010
Say I have public string variable called "_Test" on Form1, how can I allow Form2 to edit/read the variable from that form? I tried putting this on Form2:
Public _Test as String = Form1._Test
But if I start Form2 without Form1 being open, it gives me an exception.
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Jun 16, 2010
i've almost completed my Yahtzee game except for the high scores function. I've got everything worked out except how to take the highscore variable from Form1, and share the data with Form 2
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Apr 12, 2011
I am working on a program, and I would like to have the program pass a name from on form to another.
This is my code :
form 1 :
Public Class Form1
[code].....
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Jul 5, 2009
I am making a program where in form 1, the user inputs data, and the data is used in form 2.[code]There are 12 number boxes and 12 text boxes. I also tried to use a label (label 4) to test if i could even use the variables on form 1. I can't. When you press the button, It clears the text box, and removes the label.
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Apr 18, 2012
I am saving scores form my game in to a dadt base but the game involves answering questions mid game that pop up in a seperate for so I have two scores a question score and a game score and at game over i want the two scores to add up and be displayed in one labe wich appers on the game form when my count down hits 0 so I tryed to add them
heres is the game code
Public Class frmplay
Dim score As Integer
Dim total_score As Integer
[Code].....
so I want to add correct answer to score and display it in a label thatwill show on my game form
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Mar 27, 2011
I need to share variables across two forms in vb.net. One of them is the main form and the other is a child form.
Create a static/shared variable in one of the forms and access it in the other forms via:
Form1 frm = new Form1(); //creating object of parent to access shared variable
frm.a = "abc"; // passing value
Send an instance of the main form to the child form when creating the child form. The variables can then be accessed via a property function. Create global variables in a module. This seems like the easiest option, but I doubt it is the best option.I also read something about delegates and events, but I don't know how to implement this.
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