I have a VB .NET 2010 application. I added a C# project to my solution. I tried to call the form called 'main'. However, I could not figure out a way to do that. What is the best way to do that? I Goggled, and did not find anything. Actually I noticed that my Developer converted everything to VB .NET.
View 5 RepliesI am using Compact Framework 3.5 on a Symbol MC50.In my Sub Main it first checks to see if a database exists. If it does, it shows a login screen using the following code:
Dim login As frmLogin = New frmLogin()
If login.ShowDialog() = DialogResult.OK Then
Application.Run(New frmMain())
End If
This all works correctly and, when I close frmMain, it exits the application as expected.However, if the database check in Sub Main fails, I call the ShowDialog() method of another form that is used to create and fill the database from a live server. Here is the code for calling this form:
If Not File.Exists(SETTINGS_LOCALDB) Then
databaseExists = False
MessageBox.Show("Local DB does not exist. The database must be created before using the application.")[code].....
All of this code is being hit and frmMain does indeed load. However, when I click the close button in the top right nothing happens, no event occurs. Its as though the Windows events are not occurring.
How would you call a class from a main form? In VB6 you would call a module by just simply calling the module name.
View 2 RepliesAs of the moment I have 24 buttons that are keys to a piano.24 of the button codes have a call method that calls the note to be played.24 of the private subs that are called have an .wav audio playback command within them. I was hoping I could move the .wav private subs into a separate class, and just call them from my main form, therefore cleaning up the lines of code I have at the moment. [code]That example only counts for one Button "The Key of C", and the audio file that is called with it. Multiply that by 24 and you get a big mess of repetitive junk.Can I move the audio subs into a class and call them from my main form?
View 16 RepliesI am trying to convert a DLL function call which has the Callback function routine called within the DLL function call.The DLL function call signature is like this:
typedef void *HANDLE;
typedef HANDLE HACQDESC;
DECLARE_HANDLE (HWND);
[code]....
how to convert this DLL call to VB.NET and also how to create the callback function and send it as parameter to this function
call.
I have two forms. Form A and Form B. Form A has a datagrid that is populated from a SQL Database Table query. When a button is pressed Form B is launched that allows you to add a record to the database table. I need for the datagrid to be refreshed and show the newly added record when I close form B and go back to the parent.
[Code]...
I need to know the proper way, or maybe I should say, the different ways to call another form from a parent or preceding form. I am currently using ex: formname.showdialog() to call my next form, but I am uncertain if I should be using that in every situation. [code] Whats the difference between these different methods? (ex: .showdialog() , .show() )I tried both of these to open a temporary form to retrieve a persons name from a database, so as the users progresses through my training program they can keep track of their scores.But, I also call other forms as I branch through my program, from the main page, to a secondary page, to a testing page, to a results page and then back to the secondary page
View 5 RepliesHow can I disable the parent form when I call a child form?This code doesn't disable the parent form like I thought it would:
frmChild.ShowDialog()
I am trying to program a dialogue box to appear when the exit button from my 'Login' form is clicked. The form has three options; yes, no, cancel.
[Code]...
I have a small program which draws some lines with a method called: Drawlines But Now I want to call this method in the load form routine. So if the form is loaded the lines should be drawn in the picturebox. But is this possible or should the form first be loaded completely before you can call methods in that same form?
View 6 RepliesCould i call the child form events like (closing ,load, activate,closed) .
View 6 RepliesI have two form :
class form1 'parent form dim number as integer
public sub create ()
dim f2 as new form2
f2.MdiParent = me[code]....
In form2.vb how to use variable number and method test
I have to use Form.Action to redirect to a script that will be picking up values from my page. It is worth noting that this script is external.My issue is that I also want the button that is clicked and has the Action hooked up to it, to also complete some functionality in the code behind first.Is there anyway I can either :In the buttons click event handler, can I set the Form.Action and then call something such as Form.Submit?OR Set up the Form.Action in advance and then somehow have the button posting back before the action takes place.
View 5 RepliesI have one form called invoiice1.vb In the load event how can i call another form ? I also call some values of thatt form
View 2 RepliesI have a sub declared inside a module which accepts form as argument.
sub display(fname as form)
What I need is to call the sub form the load event of a form. I tried the following.
display(me)
But cant access the controls of the form inside the sub.
sub display(fname as form)
fname. 'no controls of the form are listed?????????????
end sub
I added toolstrip control into MDI form. on the parent form, creat many toolstripbutton like tbAdd, tbSave,tbEdit.When I open child form, how to call tbAdd or tbSave.. toolstripbutton on the MDI?
View 1 RepliesI creat one WEB project, this project contain tow WEB FORM, In the first Web Form Design i have tow TextBox for Entring the date(All dataTable between this tow dates) and one Button, I want that when i press to to this Button it will load the second WEB FORM and show all the Data Table in DataGrid In this WEB FORM, So i need To call this tow TextBox value from the first WEB FORM to the second WEB FORM In Load_Page i will use this tow value in select statment. So i want to know how to call this to value from the first WEB FORM. I'am using VB.NET WEB APPLICATION.i have allrady DB in SQL .
View 4 RepliesI wanted to call another form, but i am getting an error.[code]...
In MainForm, I want to call and open Form1 but i get this message when i try to do this [code]...
i have a sub declared in form1 now , i want call this sub in form2i used this code but it is error :
NhatkittDataSetAndView()
This is sub i want to call in form2:
public Sub NhatkittDataSetAndView()
[code].....
I have a piece of JQuery AJAX that calls a VB.NET code-behind (class) that returns string data. It grabs some latest stats on a particular server. Now the code works, but the first time I press the refresh button data is returned and the alert "Refreshed" is shown on screen.
But if I press it again, the alert box "Refreshed" is shown twice, I click again three times! and on and on, until the time-out kicks in.It seems to be coming from the AJAX call and no where else. I'm at a loss at what could be calling this, I've tried deleting the data returned after success but no joy.
function RefreshServer(btn,div,id,ip) {
$('#aRefresh'+id).html("<img src=images/refreshServer.gif border=0 align=absmiddle />");
$("#"+btn).click(function() {
$.ajax({
[code]....
i want to which way is better when concentration is on processing speed. i want to call a method that compute some data that method is on another form in my windows form application then what you prefer is better way 1) to call that method in another form and use returned value or create similar method in form where it is required.i want to make it's processing fast.
View 3 RepliesWe know that the DLL function can be called from our mainprogram and return value. I would like to know, when we run DLL function, can we call a sub in our mainprogram (from DLL function) and return a value to DLL fucntion.
View 3 RepliesI know you can do it with form.show, but are there any other ways of doing this?
So what is the most appropriate way of doing this in vb.net?
I am trying to call a SetVariable command from an other form. For example, there is a movie ( called Movie ) on Form1, and a button on Form2. The button on Form2 needs to use a command like the following:
Call Movie.SetVariable("example variable", 1)
The above variable needs to be set to the movie on Form1, but I need the button to call it to be on Form2.
I want Call a TextBox from another Form Example I create the TextBox on Form3 and call that TextBox on Form2.
Dim TextBoxes As List(Of TextBox) = New List(Of TextBox)
Dim tbWidth As Integer = 50
Private Sub Form3_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load[code].....
How do I execute below from other form? How do I code it? I need to see "Hello1".
Public Class frmMain
Private Sub frmMain_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
[code].....
I have so many form in different module in one solution. I already instantiate a new Form as a global variables in my parent form. Then, call the code
frm.show()
in my button1 event
I have a form that loads in my project and does some task on its own, then closes itself. I'm implementing a new functionality into the program where I need to call this form with an argument (to later be used as a conditional clause). If I call the form from a certain button, I want to launch the new form with an argument ("automatedTicket") and I will then use this argument as a conditional test in the code of the form.where, in the ACCEPTING form do I put the argument declaration?
basically i need to do something like:
ServiceTicket.Show(False) 'false for being a manual ticket (click of button)
ServiceTicket.Show(True) 'true for being automated (no user intervention)
then in the ServiceTicket form, where do I put that I'm expecting one argument? and where do I declare that argument name (automatedTicket)?
I have defined a function on one form. I need to call that function again on another form. is there any way i can do it without redefining the function again and again?
View 12 RepliesI have a login form with the code below[code]...
When i run this code and click OK, i get an error at f.show which says'Object reference not set to an instance of an object.'
How do i go about it so that i can get a smooth login an access my MDI form?