What's the simplest way to pass a variable back and forth between 2 forms?Let's say I have form1 and form2. Form2 has textbox2 and button2. When button2 is pressed I need the text in textbox2 to display in textbox1 on form1.
View 4 RepliesUsing Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.
View 4 Repliesi 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?
I have one form, which the user enters upto 5 websites then clicks go - I have on the second form, the one with the webbrowser. A timer which checks if the web browser is busy then either a green light or black image will be shown along side the assocaited input box on the first form.I am finding it impossible to feed variables into the clock through ByVal, like I would a subroutine or function.
Private Sub ActiveMe_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ActiveMe.Tick
If ((WebBrowser1.IsBusy)) Then
Hey.BackColor = Color.Black[code]....
'Error message says Hey is not declared, as i can't pass it through to timer
The variable Hey is determined by the first form - Which picturebox.I have an if statement which simply says if inputbox one has url enter then Hey = Picturebox1, If input box2 has url entered then Hey= Picturebox2 etc.What I want is the timer to check the page has completed loading or is still loading or refresing and the appropriate green or black to be shown aside url input box on first form.I considered using a sub or procedure to act as a clock (a large for loop with another for loop within it, acting as a delay). But found this slowed down theapp to the point of crashing it.
I want to pass variables from one form to an other. The variables i I need in the second form( called" Hulsview") are :" hulsbreedte" and" hulslengte". To check if the varibles are passed I added a textbox in the second form,called" hulsview" to check the variable" hulsbreedte". The value selected in the combobox on on form1" hulsbreedte = HulsBreedte1.SelectedValue" returns always 0 in the textbox on de second form.
Here is the code form1:
Imports System.Drawing.Drawing2D
Public Class Form1
Inherits System.Windows.Forms.Form
Public hlb As Point 'not used
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I am using vb express 2010.
i have a class called car and within that class i have a few vairables
Public Class car
Public Property Name As String
Public Property ID As Byte
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I have created 2 forms (Parent & Child), i want to store the unique textbox value to a variable into the parent form.
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Just started VB programming this week and have found a wealth of information about what I'm trying to do. Problem is, some of it is more complete than others.Here's what I'm trying to do:In Form1 (my main form), I want to instantiate a class that contains a couple of properties (speed setpoint and position setpoint). When I click a button, I want to pass this data to Form2 and populate two textboxes on Form2 with the properties of this object. I want to manipulate the property values on Form2 and click an OK button which closes the dialog and returns the manipulated data, updating the property values of the object. Here's the algorithm I'm following:1) On Form1, instantiate the class2) On Form1's "Pass Data" button click event handler, instantiate a Form2 object and invoke the ShowDialog method, passing the object as a parameter.
3) On Form2, overload the ShowDialog method to accept the object as a parameter and modify the method so that it returns the manipulated class data.4) On Form2, in the ShowDialog method, populate the textboxes with the class data that was passed in.Here's where I get stuck. If I press the OK button on Form2 (DialogResult.OK), it returns me to Form1, but what hook do I have in Form1 to receive the manipulated class data that the ShowDialog method is returning?Here's an example of what I'm thinking about:
Code:
Public Class Form1
Dim clsController1 As New MotionController
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I'm sure it's probably a very elementary question, but every explanation I've found seems to be incomplete.
How can I pass the global variable to .dll from windows application (.exe)
Test.dll 1. FunTest1 (Parameter Required)
------- 2. FunTest2 (Parameter Required)
Within 'FunTest2' it call 'FunTest1'.
And in .Exe I call 'FunTest2' and want to pass the parameter for 'FunTest1' also.
My goal is to make the content of TextBox1 to depend on the value chosen in ComboBox1. My code is as follows:
Imports System.Collections
Imports System.Data
Imports System.Data.OleDb
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In my window application, Form1 variable eg. Public str as string. value blank/null when move to Form2 and Back to Form1. How to maintain Form1 varable's value when back to Form1 In vb.net if any one know, reply me soon
View 2 Replieshow I can read a word document to pass its contents into a variable. Is there an easy way to do this?
View 3 RepliesI've got a collection of a type of form and multiple of these can be displayed on the screen independently at the same time and now I'm wanting to add the ability to cascade these forms, but these forms can all be re-sized so it'll be very rare when they are of the same or similar size. I would like to be able to cascade them based on their present size, so the largest for is in the back and the smallest is in front.
I also realize that a form could be wider than than another form but that other form is taller than the current one, in which case I would like the taller form to be considered the larger one (an arbitrary decision, I know). Here's the code I currently have that cascades them in the order they are in the collection, I just need to know how to re-order them based on their size.
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I've been pulling my hair out on this issue, and I can't find any topics that seem to help on this one.
I have a 3rd party unmanaged C++ DLL function which takes a string (char *) as one of its parameters then modifies that string internally.[code]...
I have a 3rd party unmanaged C++ DLL function which takes a string (char *) as one of its parameters then modifies that string internally.[code]...
Currently this code runs without exception, but desc shows 40 spaces when displayed to the messagebox. I've tried StringBuilders, but they don't seem to work. I've also tried changing the 2nd parameter to be ByRef but this causes a read/write memory exception.
I have the following [code]...
I thought make this would make my ada.myString have "working!" on the main appdomain, but it doesn't. I thought that by inhering from MarshalByRefObject any changes made on the 2nd appdomain would reflect also in the original one(I thought this would be just a proxy to the real object on the main appdomain!)?
Can I pass parameters back and forth between a Windows Service and .NET program? For ex: I want to pass a compressed/encrypted byte paramater to the Windows Service, who then decompress/decrypt it and return back the decompressed/decrypted bytes.
View 1 RepliesI have an MVC application where all the data is tied together by VisitDate table in my database. The home page is a strongly typed view of type VisitDate, all it does is pull up some simple data. Now, here's where I'm having a problem. I need a link that passes the current model in the view back to a separate controller action so I can render a different page with different data. Here are my two controller actions. I'm going from News.aspx to FrontPage.aspx and hopefully passing SchoolVisit. [Code]
View 2 RepliesTrying to find some code to assist with accessing a web service. I am a newbie when it comes to web services and don't quite get the whole how to submit the request and then read the results. I know from searches that people request a copy of the WSDL file so I have attached (SystemManagementService.wsdl)
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I am in the process of prototyping a small sockets application, which monitors IT infrastructure (due to in-house financial and deployment restrictions, I am unable to utilise an existing commercial or open-source solution). Basically, I have a server application and associated agent process for communicating heart-beat data to the server. The server application implements a TCP socket class (TCPDevice), which is called from a WinForm. I am aware of the restriction on updating the UI from processes running on separate threads, and that the preferred technique for acheiving this is via the use of Delegates in conjunction with the Invoke method. Having had very little need previously for using Delegates (apart from of course std windows events and the BackGroundWorker control), I am at a loss as to how to do this in the context of my application, and would appreciate some assistance, although it has occurred to me that I could use the backgroundworker for marshalling updates to the UI.
Eventually the application will need to update a grid of devices via feeds from the defined agents, however for the purpose of this exercise simply updating a status bar on the UI will suffice. The section of the code which I believe is relevant to propogating the code to the form is contained in the OnDataReceived method.Below is a code excerpt from the protoype app which should put the above into appropriate context:
Code from the form:
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I have a popup aspx page that receives data from a parent page gridview Edit click. There is a great deal of parsing of data from parent page to pop up as the data is being translated in pop up, then sent back to parent page to be reassembled in the original text block before update.
When the popup passes the data back or is canceled, the parent page gridview is still in Edit mode.I would like to pass the Cancel or Update button click from the popup to the parent page gridview so it can complete the update or cancel event without asking the user to click the corresponding command button link from the gridview edit mode, to Update or Cancel.
UPDATE: There is also a jquery UIBlocker on the Parent page to prevent the user from returning to the page until the PopUp page processing has been completed. Below is the critical code:
PARENT Page:
function parentFunc(a) {
// Unblocks on return from popup page.
$.unblockUI({});
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Had a problem with preventing the popup from reloading. So there is an if condition in the load event. A dynamic number of controls are built on the popup as literals. So the Page Init event and Page Load event fire on non Postback to rebuild the controls.
I have this code trying to print a signature to the printer.The problem is it is printed just at the top left corner. starting at 0,0.I want to print anywhere on the page. It means X, Y value needs to be manipulated.How can I get X,Y value from "line" variable and write back it.[code]
View 3 Repliesok to start i know very little about VB6 but i am very good in true basic lol (stupid school teaching the wrong language -_-) anyway im just asking you to make the answer as clear as possible because i don't know very much. heres the problem . ok in the above example i have a button that (for my example) can be used to build a house (lol) i then have a variable in the button sub called money which will have 150 subtracted from it when the button is clicked my problem is it say variable not defined when using this button ... i have declared the variable in a module and in form load along with my other 50 or so variables. my question is how do i pass the variable into this sub and then send the new value back into form load so it can be sent into another sub for more calculations.
View 14 RepliesI currently have the following funcion:
Public Sub GetUserAmount(ByVal ConnectionString As String)
Dim command1Text As String = "SELECT Wager FROM Donations1 WHERE DonationId = (SELECTCOUNT (BidCountHistory) FROM BidCountHistory)"
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I need to pass a variable by name like this
Dim html_news = "...the news ..."
Dim var = "news"
Dim a = "html_" & var
' content of that variable
How can I do that in VB.NET ?
I am currently trying to teach myself how to program VB.Net in Visual Basic 2010 Express.I've been working on a little project for a while and have hit a wall. Normally I can find what I need online but I am now at a complete loss. Essentially I am trying to pass a pair of variables from Visual Basic (file names actually) to VBA so that I can copy/paste data from them using VBA. What I need is to find out how I can pass variables (in string form) back and forth between VB and VBA
View 13 RepliesI have a Public Sub where I declared
Dim Elev As Double
later under that Sub I have the program go to anothrer SubRoutine that uses the same Elev variable. Within that subroutine I get a Variable not declared error. My book talks about using "Static" but in the context i guess I am using it, it hasn't worked.
What is the best method of tranfering the information from one sub to another.
I am using VS 2008.I have an application that has a variable defined as an Application Setting. I use this variable to define the connection string so I can change the location of the database withour having to recompile the application.My application references a class library. The Class Library is the one that manages the database. The DLL is referenced by my application.How can I make the class library use the Connection String defined as an Application Setting of the consuming application? If I say in the class library:sdRadhaAllied.Schema.Connections(0).ConnectionString[code]...
View 4 RepliesVS 2008, .NET 2, Win XP I need help with passing a String variable from App to DLL?Why: I have App that on UnhandledException needs to call ErrorReport dll, send to that dll some strings like: App name, stack, error... Dll will send through internet this gathered data to me.
I can open Dll, close it, code it, but I can not figure it how to send data to it like VB App name, VB App version, VB App error.message For example I can in my form make a global variable like Public TestGlobal As String and that I can call from anywhere in my app, but how to do it with dll?
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I'd like to know, if I have a variable,for example, a string, how to pass its value to my new app domain:
static string _str;
static void Main(string[] args) {
_str = "abc";
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