Create Separate Object Instances For New Objects In Separate TabPages?
Sep 17, 2010
I have a TabControl object on my form with many tabs created in code (TabPages) and my problem is that the same objects that are in the initial TabPage needs to be in the other TabPages created in code, I have this done in code when the user clicks the 'New Tab' menu option, however the same code is used for any new tabs created. The problem created here is that I have an event against one of the objects that appear in the other TabPages, but because the same code is used to create any new tab pages, the event will only work on the newest tab page, if that makes sense? By the way these objects that appear on the other TabPages are properties at the top so events can be handled against them in the respective subroutine.
Good evening folks, I'm building a program that is threaded. While I can get the thread to work no problem, I can not seem to add pages to my tabcontrol from the class I'm using. Any idea's on what I'm doing wrong?frmMain is loaded first. Then the idea is to load the other tabpages using a separate thread as they take awhile.[code]
I have an object that is defined as a global variable based on custom class. Within that class I have an event that gets fired a certain intervals. These events are fired on the same thread as where the object is declared. How do I create a global object, but have the events within that object fire on a separate thread?
When I create more than one instance of the same form and I call a method on any of these instances, the code only fires on the most recently created instance. Even when I click a button on that form, it executes on the other form. How can I call these and keep them as distinct objects?
For example: if I build Form1 with a public method called ChangeMyColor and a button to call that method. Then in the main app I set MyForm1 = New Form1 and MyForm2 = New Form1, then call MyForm1.ChangeMyColor, the color changes on the second instance. Even if I click that button on the first instance, the color still changes on the second.
I created a telephone number form where the user enters the telephone number in a text box as (nnn) nnn-nnnn. The first 3 digits in parenthesis are the ISD code, the next three are the area code and the last four are the local number. I need to separate out these three fields of the phone number and display in three separate text boxes labeled appropriately. Now, suppose the user enters the phone number in a text box as a continuous string of 10 digits, where the first three represent the ISD code, the next three represent the area code and the last four represent the local number. I'm lost as how to change this string into the form (nnn) nnn-nnnn. This is what I have
I'll get straight to my problem - I'm currently coding in Visual Studio.I have a table (countries) with the columns ID | Name. The table is filled with around 28 records.I also have a form with 4 combo boxes (set up as 1,2,3 & 4) that I want the user to select. These combo boxes will display the names from the table countries. I then want to use the selected names in the combo boxes to Insert into their corresponding ID into another table. For example England would have the ID 1, USA the ID 2 etc.So, is it possible to have separate combo boxes that will give separate ID values but using the same table? At the moment I can't seem to find a solution.Eventually the form will have more than 4 combo boxes so I don't want to use separate bindingsources for each combo box.
I have a few forms that have a lot of really intensive updating along with a great deal of user interface (text boxes, button clicking etc) Is it possible to open a separate form as a separate UI thread from the start up form that called it to "show" or open or whatever the new method might be?
I want to create a game using visual basic 2010. I'm a specialist in VBA and Excel but not VB 2010.I want to display and hide a whole group of objects. In Acces I used for such cases the TabControl. For example in Tab1 the Game, in Tab2 the highscore and in Tab3 the options. Then I made it transparent, so that the Tabs (Buttons) are not visible, only the objects in Tab1 Tab2 and Tab3. With VBA I select the Tabs controlled by my own buttons (jpg). I tried the same in VB 2010. Without success.What can I do to switch between game, highscore and options without using popups. I want to display them at the same positions. So game objects and option objects should hide and highscore objects should be shown. And the other way round. Like the handling is with different layers in photoshop!
I am playing around with VB 2010, and I want to create a separate file with different procedures etc so that I can call a proceedure etc from this file I have a simple form with a single label on it, and a seperate file called filelib.vb.In the filelib.vb is a proceedure called LogicalDriveTypes
Public Function QueryLogicalDriversNames() As String() Try Dim Totalstring As String Dim ds As Int32
[code]....
In my form1_load I have Label1.Text = filelib.LogicalDriveTypes and I get "reference to a non-shared memner requires object reference. How where / what do I do to access the proceedures / functions in this other file any time I need to from this form ?
I have a windows form with a textbox bound to a data table and a PDF Viewer both in the same form. I could change the text on the textbox and the Viewer would show whatever is linked to the textbox. I am trying to create a separate form to put the viewer in but at a loss on how to link it to the textbox on the first form.
How do I create separate files in a VB Express 2010 project?[code]...
Query 1: When creating class files, the VB Book by Loffelmann & Purohit (p 172) says, put the class in a class file that has the same name as the class. However, as shown, I want to have two or more related classes in this file. Do I need a separate file for each class? That would get cumbersome!
Query 2: Can I create a file similar to MyOutput.vb so that both MyModule and MyClass can include statements like[code]...
I am instantiating a form object in my code behind the dataset just to access some form level variables and to occasionally set a label in the navigator bar. Recently in the b2 Team version of VS2010 there are some strange errors thrown in the immediate window and then I'm tossed out of debug mode and back into the IDE. This code has been operating for some time in this project without this behavior. A team member has just reproduced the behavior in his development machine also.The error that starts the shutdown of the debug instance is this: Control accessed from a thread other than the thread it was created on.
Currently I'm creating a task that runs a hardware i/o loop for the duration of my program.i.e. it's a task that's created at the program's start and runs a loop that is only broken at the programs termination. Each loop cycle communicates via ethernet to hardware.depending on time outs each cycle takes 30-300 msec)I've noticed that if the loop runs with out any break that the program really slows down... to counter act that I placed a thread.sleep(x) in the loop
is it a bad idea to create separate parts/winforms of the same application (using the same SQL Server DB) in different executable files. For example for a School IS: A Receptionist App, A Teacher App, A Principal App and so on.
The company I work for has a VB6 project that is using an ACCESS database.The project consists of seperate modules such as Accounts Payable, Payroll, General Ledger, and Inventory.At the current time each module is a seperate project in VB6 and the EXE files are called when needed.In total there are about 1300 forms in the project.We are moving from ACCESS to Sql Server and from VB6 to VB2008.The question that I (we) have is as follows; Should we continue to keep each module seperate and call the EXE's or should we create one large project?What are the pros and cons for each way?Is there something written that explains the advantages of either?
I have to create a textbox which will list down one column of datas from textfile which is separate by delimiters.But as I have to filter alt.Row from the text file, what can i do?
I have the following directory structure in my asp.net webdirectory i want when any body access anypage inside my admin folder then it auto redirect to login page of admin folder until they login
There are two forms. For the form1, the view is 1 textbox and the button. For the button in the form1, when it is click, it will go to the form2 which consists of the datagridview. After select the numbers from the datagridview, it will go back to form1 and display it in the form1 textbox. But I want to separate it with a comma. Here is the code in form2: Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
We have an access database that contains Version table. the same file is stored in 2 separate locations, how would i pull the information from both c:db1.mdb and \servernamedb1.mdb's table so i could compare the two?
At the moment I am trying to generate buttons, where the mouse position is.I have a timer which gets the mouse position as 2 string variables:[code]what I want to know is how do I access each separate button, I mean if I went nodebtn.hide() then all of the buttons will disappear. However I would like to select a button to chose from the present.
i'm working on project that backup SQL daily and archive into ZIP file but i got an error cause i was trying to save the archive with today date and time so i think the problem that i need to change separate from
DataGridView, add unique gradient to each Row I like to add a gradient brush to each row of my datagridview. I like to change the gradient colors for each row independently depending of some cell values in the row. I know how to add a solid background color to each, cell, row, column etc. but I do not know how to add a gradient brush to each row individualy.
I need to fill the datagridview with values, the datagridview is disconnected from any database or other data source. After filling the datagridview, I want to step trough each row, find my key values, decide the gradient colors and then add the gradient to the row.I like to do something similar to what I now do with a background color:
For Each R As DataGridViewRow In DGV.Rows Dim CS As New DataGridViewCellStyle Select Case i
DO NOT REDIRECT THIS TO ANOTHER THREAD BECAUSE THERE ISN'T A ONE I'm developing a project in VS2010 - WPF - VB.NET (4.0)The solution contains 11 projects; one executable and others are User Controls, Custom Controls and Classes.Now when I build my solution this happens in the output (Debug) folder:
