Pass Variables Between Forms?
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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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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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 28, 2011
1) when i click a listbox the values are displayed in respective fields from database.When i click PROCEED TO NEXT STEP in SLIDE-2 i get slide-3 where i get all values of Slide -2(FLIGHTID,FROM.TO)..Now the problem is when i press BACK and select new selection from listbox i am not able to get new values in this SLIDE-3 .I am getting the old values only..2) I declared public variables and sent all values to SLide-2 but when i press BACK and again select a value from LISTBOX i m getting no value in SLIDE-3
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May 20, 2009
I'm practicing creating a website for a test, although I am having trouble passing varialbes between the webpage with which the user logs in, and the web page in which the user sees/amends their details (it's an online bank).
Basically, I want the user to enter their customer ID and password, then click on the 'Login' button. When the user clicks on this, I want to display their details based upon their login info (ie their own, and nobody else's bank details).[code]...
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Dec 5, 2011
if this is a dumb question. I don't ever have to write anything in VB.NET.But I am passing variables named "name" to a function and sometimes it may be 1 name or 2 names, etc. I want to check in the function if its only 1 name don't add a comma, if it's 2 names add a comma. Is there a way to get how many "names" there are?
EDIT: Added my ode to make my question a little more clear. sorry for not doing it before.
My Code:Public Function GenerateCSV(byval str as string, byval str1 as string, byval str2 as string, byval GrpName as string)
[Code]...
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Mar 25, 2010
I'm working on integrating my companies back-end system with paypal, on our current website.I have done paypal integration before, but this company is a middle-ware provider that allows us to hold an order until it ships.They have provided a very low-level example of implementation, but leaves some gaps in a true implementation on a back-end system. They have each method, essentially, have it's own aspx page that sends data to a page, that contains a javascript that autoposts to a url, with 3 hidden variables.
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Jun 21, 2012
Passing variables from .bat file to vbscript. I have .bat file that launches test.vbs. I need to pass variable defined in the batch file inside the .vbs file.
the batch file contains the code
set /p var= please enter the value: cscript test.vbs "%var%"
Where as test .vbs has the following codes
Dim StrText
MsgBox StrText
In my requirement value assigned to variable 'var' in batch should assign to StrText variable in the test.vbs and then it should display in VB message box.
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Aug 14, 2009
Is there a way to pass variables into a form that is shown as a dialog?Dim frmCreateCSVFile As New CreateCSVFile Dim returnValue As DialogResultreturnValue = frmCreateCSVFile.ShowDialog()
It doesn't seem to find the variables when I use the form name.
dtpFirstEndDate.Value = ControlChartsCSV.dtpFirstEndDate.Value
dtpLastEndDate.Value = ControlChartsCSV.dtpLastEndDate.Value
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Aug 10, 2010
I am writting a VB .net (3.5) applivcation which references a COM object. I can call methods on the COM object fine provided that they don't require any variables to be passed. I have been told that you can only pass a maximum of one varaible to a COM object, I really don't believe that it true
for example
objsession.connect()
works fine
but
[Code]...
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Sep 9, 2010
I have a project that I have set up a menu item Setting witch calls a Dialog calledDialogSettings on this dialogI have a tree view that selects a user controls that I can change the settingsbut I am having a problem passing variables to and from the main program to the UserControll so I'm unable to show what the setting is and unable to change the variable that the setting is for
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Nov 11, 2010
What is the best way to pass a variable from an OnClick event. To elaborate I would like to bind some data to the button and then when that button is pressed I would like to pass that data back to the code behind and do something cool with it.[code]...
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Aug 3, 2011
I have a gridview and use a session to pass the variables from the page to an edit page. This works perfectly, until you search for a number. When you search the correct record displays in gridview, but when you click edit, it passes the wrong record.
Private Sub gridview1_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles GridView1.RowEditing
Session("wr_id") = GridView1.Rows(e.NewEditIndex).Cells(2).Text & "~/~" & _
GridView1.Rows(e.NewEditIndex).Cells(3).Text & "~/~" & _
GridView1.Rows(e.NewEditIndex).Cells(4).Text & "~/~" & _
[Code] .....
I realize not all of the code is pasted in here, because it would take too much space. Any Ideas? I'm guessing it has something to do with e.NewEditIndex
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May 22, 2009
I want to pass a few variables to another page. Currently I'm using response.redirect and passing the variables in the url. I'm not really interested in using Session Variables. Is there a way to pass hidden variables in .NET to a completely different form?
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Mar 14, 2012
I am developing an VB.NET application that reads data from the serial port and tcp socket, then I'm processing this data and store it in Database server. This application will be started all the time as long as the computer is started. On the server there is installed an apache server with some php scripts representing the "visual interface". From there the users can see the readed data from the VB app. The need is when an event appear in the apache server (such as button pressed), some data to be passed to the running VB app, and eventually trigger an event on it. I've considered some variants like start an timer that reads continuously some tables from the database that the php script writes onto, or read an xml ot text file, but I think that this may slower the communication and it is a source of exceptions or errors.
For example: An user opens a webpage, just to say test.php. On the page there is a button. The user pushes the button. The result of pushing the button has to trigger an event on the VB app and cause sending data trough the serial port or tcp socket. OR - The VB app has a timer that scans for pressing the button on the test.php.
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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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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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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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Sep 11, 2009
i have a dialogbox (dialog1) i will assign the input from textbox a variable to the from1 but i cant do that.the variable in form1 is Dim get_from_dbox As Long i try to assign to it from dialog1 like below it fails form1.get_from_dbox = Textbox1.Text but i can assign to textbox??like that which works well
form1.RichTextBox1.Text=Textbox1.Text I am new programing i know i am wrong .don't know where?
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Mar 23, 2011
How to pass a row of datagridview of form1 to the other form2 datagridview
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Oct 3, 2011
Is this way a "right" way to pass data between two forms?[code]...
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