Is it possible to run a function or to execute a button just after the form was loaded? I mean to execute it just as the form_load subroutine has ended, so the form is already being displayed.
View 2 RepliesCurrently the process is in VBS, however this means there is no real interface.I attempted to get this into HTA, but this doesn't work to well due to known issues - the interface doesn't update with information until the end of the code (functions) are executed.So I thought I would create a VB program to do the work.Ideally, I would have a form load, and once loaded the functions (which map drives accordingly) will display the results on the screen.My code should be pretty sound - it is working - but it seems to be invoking BEFORE the form is displayed.I have tried various subroutines, such as Form1_Load, Form1_Activate, Form1_Shown, but all of these execute the code before the form has loaded and is displayed on the screen.As a test, I have
Private Sub Form1_Shown(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
lbl_Head01.Text = "HELLO WORLD"
[code].....
In my .NET porject, I have to run a lot of validation on 4/5 fields. This validation checks if certain fields have errors, for example: the name field is not allowed to have numbers or symbols. If all these checks are passed, I need to execute a SQL query to pull some data out of the database. I could have it with a lot of nested IFs, and run the function at the end once it passes them all, but this will translate into about 12 nested IFs, and it seems a really bulky way to do it. I have also thought about setting a boolean value after every check, and if the value is 1 then don't run the function, else do. But of course this gets overwritten by other checks that pass.
View 2 RepliesHow do you check to see if a form is already loaded, ie if it is already loaded bring to the front else load the form.
View 3 RepliesI have a very simple form with a combo box named txtRoomType bound to ROOMCODESBINDINGSOURCE and a DGV bound using ROOMPRICINGBINDINGSOURCE.
Public Class frmShowRoomPricing
Private Sub frmShowRoomPricing_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
When I check the value of txtRoomCode when the form is loaded for a 2nd time it tells me it is blank, but there is a value in it. I think the fault is in the form_load, but I do not know why.
I have a form set up where I want to run the function PopulateGrid on it's Form_Load event. I have initialized the DB connection as follows:
Private Sub Main_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
LoadConfigFile()
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & config("DatabasePath") & ";")
cn.Open()
End Sub
Now, I want to run the PopulateGrid function directly after I connect to the database as shown above. I'm confused as to how I'd use a database query in a module when the database is initialized in my main form. Would simple setting the variable cn to public work?
Is it possible in VB .NET to find out if a form is loaded? Also, is it possible to find out if a form is shown at the moment? I think for the second issue it's enough to get the value of the property of the form:
MyForm.Visible
However, I don't know how I could find out if a form is loaded or not.
I have coded in the older version of VB for years (VB6 and prior) and Recently I just began learning VB 2008. In my current project I made a mistake in a form name frmAuthors and so far I am unable to recover. The problem is that I tried to have the form inherit a class I had created (first mistake). The IDE generated a popup message stating the error and provided the option of changing from inheritance from system.windows.forms to the class I had created. I said yes just to see what would happen (I was bored so I was up for something new) and that's when the form got corrupted.Is there a way to let frmAuthors go back to recognizing itself as a form object and not a member of the object I had created?
View 2 RepliesI have a Parent form that loads a child form and I only want to allow one instance of the child form. I have this on the button to open the form. Stepping through the code with the debugger it "appears" to work OK when the form is open (I say appears because nothing changes) but when the form is closed it doesn't open as I would expect. What am I missing?
[Code]....
Ok I have a project which has a MDI parent. Inside the parent I have multiple isntances of a form load(frmLine1t5). When my program loads it will load a different form(frmSelect) and if I manually load a different form(frmRetests) I can put frmSelect on top of frmRetests and bring one another to the front if it's clicked on(without using the bringtofront method)However as soon as I load a single instance of frmLine1t5 I immediately can no longer bring ANY form loaded into the MDI parent(before or after frmLine1t5 has loaded) to the front. I can only bring them to print IF I use .bringtofront method
View 1 RepliesI am just wondering how to force the creation of a handle of a control before the form that it is contained on is loaded... I have tried:
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Is running a PHP script in a Visual Basic 2008 form possible? What I need to do is:
1. Add text boxes that would represent variables of the PHP script.
2. Add a button that would run the script.
Is doing this possible? If yes, can anyone please give me a very simple example of running a PHP script in VB2008?
I have created a application that creates a windows schedule task that connects to a FTP server and uploads/synchronize selected files and folders from your computer. After the user has selected all needed information and click continue, a form with a progressbar (Marquee) should appear. The application will then perform different tasks needed for the schedule to be completed. When all needed tasks are finished i want the progressForm to close and the main form will show you a summary of the newly created task.
I run the tasks in the main thread and assign a backgroundworker for the porgressFrom. i have have also tried to run the taks in a backgroundworker.
Button Continue Click Event.
Private Sub btn_Continue_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Continue.Click
Try
[Code]....
I have a program I've been working on for some time now and I'd like to try to streamline it somewhat. I have a main menu form that has a split panel, in the left panel is a treeview that displays forms you can open and when one is selected, it opens in a child window in the right panel. Each time I open form I called DWNForm, it does a series of dataset loads which are the populating items for a series of listviews.
What I would like to do is have these datasets load once during the mainMenu load and then have the DWNForm be able to access the datasets once it is called from the treeview selection.
I am trying to use a progressbar to show on main form and then finish when next form is loaded, I have got this code.
1. When I click on button, it must open next form, but the next form must only open when the data in my list box has been loaded from Access Databse. When I run my program, it only shows the progressbar and don't open the next form.
Main form code:
Public Class Main
Dim PB As ProgressBar
Private Sub main_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
[CODE]............................
This might be a stupid question but I cannot figure out how to do it. I am making an application used as a touch interface. What I want is to make a form in VB.net, ie buttons and a browser window and possibly some images. When I press a button such as next page etc. I would like it to be a new interface ie different buttons maybe a picture instead of the web browser etc, pretty generic. I can see how I can do using multiple forms but I am wanting it to be one application/one window.
Am I missing something as I thought this would be a pretty normal thing to do, ie having different UI's so when you click a button it takes you to the next page. Should I been using multiple forms and then get the form2 to replace form1 etc?
I have a FPS game i built using FPS creator that works fine but i want to run it inside my form. Like so for example:
View 2 RepliesIs it possible to reload a form of the running application from one computer when I executed a function from my other computer with the same application? co'z I want to see the changes of data on my datagrid view?
View 2 RepliesI want to know if vb .net form can be also loaded into browser.And how it will done?
View 3 RepliesI want to draw a histogram when Form2 is loaded, I load Form2 using button of Form1 It didnt work, Form2 is loaded, but no image...i dont know why here's the code
Private Sub Form2_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
Dim img As Graphics = PictureBox1.CreateGraphics
[Code]....
Is there a way to check if a form has been loaded yet? I saw in C# they have a isLoaded property, but it doesn't seem to exist in the VB.Net Form class?
View 17 RepliesI am trying to create an inherited form- when I go to add it, I get the following message- "CustomerInformation --- The base class 'Object' could not be loaded. Ensure the assembly has been referenced and that all projects have been built"
View 3 RepliesHow do you auto refresh after a form has already been loaded?
View 4 RepliesPrivate Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Hide()
End Sub
I want to hide the main form when it is loaded, but the code above doesn't work. Can anyone show me how to do that?
I am learning VB.NET and as a first task I am creating a login form. I've been trying to link it to another form once a correct username and password are entered. However, despite that I still cant be able to hide it or unload it once the next form is loaded.
Here is the Code
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
If UsernameTextBox.Text = "chris" And PasswordTextBox.Text = "chrispass" Then
Me.Hide()
Form2.Show()
End If
Me.Close()
End Sub
The Form2 appears as coded above but the 'Me.Hide()' manages to hide the login form but then it appears again.
I have a form that contains two datagridview. I need to load the form first or anything that shows a "loading please wait.." form while the two grids load.Basing on your experience what are the ways to do this?
View 1 RepliesSo just to get better at VB, I'm trying to make this application that takes pictures from your clipboard and uploads them. I'm adding a label, that will tell you if there's anything in your clipboard or not, but the problem with that is that I don't know how to make it check the clipboard all the time.I'm still a beginner, so I only know how to make the app do something when a Form has loaded up, or clicked etc., but how do I make it so it checks the clipboard when it has changed? If I can't do it, how do I make it so it checks the clipboard like maybe every second. Do I need to use threads (I'm not sure, because I don't quite fully understand threads).
View 2 RepliesI have created my app to load with a argument
now, what I want to know if it's possible to pass the load argument even if app is loaded
like
app.exe -a = loads a special form on app.exe at load time
and if app.exe is already loaded to load same form if user requests it again from a shortcut or so
I am designing a form that will create a template of data that will later be loaded into another form.From a menu command "Create New Template" I will need to ask how many Fields will be needed for the new template in an input box. If the user would input say 10, then I need to generate 10 labels, 10 text boxes, & 10 combo boxes. Each group (label, Text Box & Combo Box) on its own row on the form.I also want create the data mapping for each of them at this time.Once I have achieved this then I will add a form that will lookup the template name, and row count given from the above form via the database and load the required rows of items for further data entry.
Since I will have a MAX row limit I thought about designing a form using a Table Layout panel with 25 Rows and 5 columns then doing some sort of .visible true/false for the layout panel row after the user input of row/field quantities.Another question is resizing the form around only the visible rows.
the project i am currently working on has a form in it that has quite a few objects that take a couple of seconds to load. Because of that, if i simply use the .show command, the form shows up, but there are a bunch of blank white boxes where the content is still loading, how can i have the form not become visible until ALL of the contents and images inside are fully loaded?
View 1 Replies