Opening A Form Externally?
Mar 8, 2012I have 2 separate projects that i created using Visual Basic 2010. I need to have a Command button in project 1 to open a specific form that i have in my 2nd project.
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Can't Add Controls Externally
Apr 2, 2009I have a usercontrol and the following subroutine in it:[code]If I call this sub from within the usercontrol, the red square loads, is added, and is shown. If I call this sub from the form that the usercontrol is in, the picturebox loads and seems to be added, but doesn't show.I have been trying to figure this out for hours. I've tried adding Refresh(), Show() and Visible=true, but they have no effect, and the messagebox always reads "True" and no error occurs.
View 10 RepliesCreate A Progress Bar For An Externally Launched Command?
Mar 3, 2009I'm writing a utility that will do several things. One of the things it's going to do is run some commands on a domain controller, and pipe the results to text files. Is there anyway to create a progress bar that will show the overall progress of the task? Even cooler would be to have a label that said dcdiag running, Can this be done? If so, how would I do it?Dcdiag.exe /e > .Logsdcdiag.txt
View 4 RepliesVS 2010 : Make A Form With Multiple Buttons Opening Different Things Than Having A Form That Has Lots Group Boxes For Each Tab?
Jul 25, 2011Is there a better way to make a form with multiple buttons opening different things than having a form that has lots group boxes for each tab. So in the begining each box will be invisible and when you click the button the corresponding group box will become visible. Is there any other way?It will be like a background image and it'll have buttons that will mask it with invisible buttons. when the button is clicked it will open the corresponding group box.
View 5 RepliesError While Opening Form In Designmode, Pressing F5 Opens Form
Jan 15, 2009Whenever I want to reopen a project that I didn't worked on for several month and want to view my form in design mode I receive following error.
Warning1Method not found: 'Void System.Windows.Forms.Design.ParentControlDesigner.WndProc(System.Windows.Forms.Message ByRef)'.00
[Code]....
I used this project in VB2005 express, but also in VB2008.
Forms :: Main Form Minimized After Opening Form In A Different Thread?
Jun 7, 2009In the main form the user can choose to download information from a device.Since this request takes time, when "download information" is pressed I open new form in a separate thread: Private Sub RunDownload()
[Code]...
Winforms - Know The Event Order Of Form Which Is Executed While Opening Form
Jun 30, 2011I would like to know the event order of form which is executed while opening form. I am showing my form using following code and the code in form_load event executes twice. Once when the form variables are initialised and second when form is displayed. I want it to execute once only. form showing code:
[Code]...
Use Parent User Controls From Externally Loaded User Control?
Jun 2, 2012i have a windows from project and in that project i created a user control lets call itcustombutton1 now i can use that control quite easily either at design time or runtime by creating a new instance of it like
View 1 RepliesForm Is Not Opening?
Feb 10, 2010I have a module with Main(). I am calling a form1 from this Main(). Why Form1 is not opening. I set Main() to run at the first in my Project propertis. I am using VS2008.Net3.5 VB code.The Code is:
Module Module1
Public frm1 As Form1
Public Sub Main()
frm1 = New Form1
[code]....
Quit An Excel Macro Externally (from A GUI Not From Macro)
Oct 21, 2010I'm have a program (GUI) that interfaces with excel to execute macros. We're using Microsoft.Office.Interop.Excel to call/run the macros and this works great.What I can't figure out is a good way to cancel the macros from the GUI.One idea we had was to use the excel.application variable that runs the macros to write a "stop" value to a specific cell in the workbook, and in the macros (they are all mostly loops), check for the "stop" value in that cell. This crashes my GUI with this The program '[2188] BVLReports.vshost.exe: Managed' has exited with code -336589910 (0xebf00baa).And excel gets tied up, and won't respond. I know how to Exit Sub from within the macro if the "stop" value exists, so I don't need answers on how to check/cancel from inside the macro. Any ideas on a better way to write this "stop" value or a better way to cancel the macros externally?
View 2 RepliesClose First Form When Opening A Second Form?
Dec 12, 2011I have two forms and a button on the first form. What i want is when i click the button the second form to show and the first one to close.But this isn't working with:
Form2.show()
Me.close
Correct Way Of Opening A Form?
Apr 10, 2009I am a bit confused on the correct way of opening a form. I generally practiced form1.show to open a form, but i came across the following code to open an form.[code]....
View 9 RepliesError When Opening Another Form?
May 19, 2012I am creating a simple email application which sends mail from a user's Gmail account, as I haven't worked out how to receive incoming mail yet.I have created a form (frmSignIn) which asks for the log-in info and another (frmComposeMessage) which has all text boxes necessary for composing an email (to, subject, message body).After clicking Sign In on the first form, it should hide it and open the second form, however I get this error:
System.InvalidOperationException was unhandled
Message=An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object.
[code].....
Form Closing And Opening
Dec 5, 2011I have form1 and form2 and have when a user clicks on an icon on form1 it shows form2 and hides form1. But how would I get it to when a user closes form2 it will show form1 again?
View 3 RepliesOpening A Form With A String?
Nov 11, 2010I have a program withmultiple Forms and i have made a back and Forward Button so they caneasilgo back to the previous Form.My question is How do you open a random Form with a string i have googled it nd this code is the best one i have found.
View 1 RepliesOpening Form By Type Or Name
Jul 17, 2003How to create an instance of a form if it is not know in advance which formtype has to be opened. If you want to skip the chitchat: the .NET code example is at the end of this post. First the Symantec: when we create a new form, this form has a name. If we refer to that name, we actually refer to the name of the type of object that is just created. When to use of course when reading the subject you might think: why not just pass the form to a parameter that takes a form (or control/object)?
The answer is: you don't when it is not sure, when or if a new instance of the object has to be created or, as mentioned, when the procedure is called it is not known which class has to be created. You could of course hold a bunch of created objects, but that would be a shameless misuse of memory. Imagine the following scenario (seen something like this in a post, but can't find it anymore):
You have a class that is able to trap an event, say the doubleclick of a textbox, and has to open a form when it occurs. If it's always the same form, that's easy, but what if you want it to be determined during runtime? This is a quite common story: doubleclick on article opens the detail form of that article, doubleclick on supllier opens that particular form. If you use a form variable, how do you say to the class which form should be opened? This will not work
Code:
Dim FormToOpen as Form 'you don't want to open it right away, you want to know when the time comes what form to openFormToOpen = Form1You could say FormToOpen = new Form1, but then 1. an instance would be immediately created, even if it never will be used: memory leak. 2. you can never close the form, you'll always have to use the same instance created when setting the form. Consequently, you can never open more than 1 instance using this way.
The solution: use the type. If you know the type, the Activator class will enable you to open (and return) an instance of that form at any time and as much times as you like. (The Activotor class exposes the function CreateInstance which returns an instance of the specified object)The following code creates an instance of the type form1 and shows it.
Code:
CType(Activator.CreateInstance(GetType(Form1)), Form).Show()Or for better readability, the same code split up:
Code:
Dim FormToOpen As Type
FormToOpen = GetType(Form1)
Dim frm As Form = CType(Activator.CreateInstance(FormToOpen), Form)
frm.Show()
Opening New Screen In Same Form?
Nov 24, 2009I'm trying to create a new screen in the same form, the only thing I've done closest to doing that is when you click on a button in one form, another form opens. But I'd like this action to be presented in the same window. So I guess I want to open multiple forms in the same window.
View 1 RepliesOpening Programs In Form?
Nov 13, 2010i want to open progream in my Form,like:(The picture edited in Photoshop)
View 2 RepliesOpening The Same Form 2 Times?
Jul 19, 2011Just as the title says there is a way to have the same 'Windows Form' to open two times ?
View 2 RepliesRandomly Opening A Form
Nov 10, 2009I'm making a program where the user can choose a question section and the program is supposed to randomly open one of a few forms that contain questions. However, I can't get the code right.
[code...]
VB Form To EXE/Opening IExplore?
Aug 19, 2011I need to send this to my other admins on my forums so they have access to editing my website andeverything when they need to, but I don't know how to make it distributable (or
View 1 RepliesVB2008 - Opening A New Form?
Jan 16, 2009Okay, so I was making a program, and I wanted to open a new form, and close the current one.Natuarlly, I did this.
If login = True Then
MsgBox("Logged in.")
Me.Close()
[code].....
Vs2008: Why Form Is Not Opening
Mar 30, 2010I have a project in VS2008.Net3.5 with a Module1, form1 and form2.
[Code]...
Question: At the beginning I am opening form1 from sub Main(). Now from the menu I am openning form2. In form2 I am clicking Done button to hide form2 and go back to form1. It works fine in the 1st trial. Keeping form1 open for the 2nd time, I opened form2 from the menu. Now when I Click the Done button 2nd time it just hides up everything. Form1 does not show UP. It just exits the whole application. But in my btnDone event, I have frm1.show().
Code Is Opening A New Second Instance Of The First Form?
Sep 16, 2010I have 3 forms, say Form1, Form2, Form3. Form1 has a public method assigning an image to a picture box:
[code]...
The problem is that this code is Opening a new second instance of the first form (Form1), when I see in debug mode and move my cursor over the frmPers variable, It's value is Nothing, altough I am seen it at the screen ¿Why is this? I am loosing my hair after three days trying several forms to do it without any results.
Combo Box Activates On Form Opening?
May 15, 2009I have created a main form in my program to which I have added a combo box containing 12 months of the year. What I want is when the selected month is changed it should call a subroutine which does a calculation. The procedure works but the combo box acts as if the selected item has been changed as the form is opening which is not what I want as at that time there is no data loaded for the procedure to do it's calculation. So what I want to know is, is there some way to prevent the combo box from behaving this way at start up?
View 5 RepliesForm Auto-Opening And Closing
Dec 25, 2011I want it to open and close after 3 seconds at each Timer1.Tick What i got so far:
[Code]...
Forms :: Closing And Re-opening The Same Form
Feb 22, 2010I am attempting to find a way to get an existing form to close and re-open (with the controls re-set). If I use a method like
[Code]...
Forms :: Opening Form Using A Threadpool?
Sep 15, 2009I want to open a VB.net form using a ThreadPool with a maximum of 10 threads. I need to do this because, the form should open based on a live event and i need atmost 10 forms on the desktop at a time. If i open the form on every live event without using a ThreadPool, the desktop will be floaded with many forms. I am using QueueUserWorkItem method of threadpool to queue a method which opens the form. In this queued method, there is form1.show() statement called. But after displaying the form, this method finishes execution and again we have 10 threads available in the system. I somehow want to either keep this method running so that 1 thread is occupied or i want to keep the thread alive till the form1 is closed by the user. I want the 11th form to appear on the desktop, only when any of the existing forms out of the 10 (already on desktop) is closed.
View 2 RepliesMDI Child Form Not Opening Correctly
Jun 24, 2011I have an MDI form on which I am trying to open two other forms in the same place (not at the same time). One works, one doesn't. Both of these forms have the following as the very first statement in the load event.
One form opens in that location and functions fine. The other form, which is the same size, seems to spread out across the MDI form top-to-bottom wise. There is also a bar at the top with min, max, and close buttons that came from where I don't know as the form is set with no border. This form must open in the correct way as there is a menu at the top of the MDI. Anybody have any idea why this is happening? Some property or something which is different between the 2 forms?[code]...
MDI Child Form Not Opening In Specified Location?
Jun 25, 2011I have an MDI form with child forms which I open on it. The following statement in each form's load event places a child form in the location I want:
Me.Location = New Point(0, 136) I have several of these working. However, I have one form for which this statement does not work. It opens spread out over the entire parent form. Also, there is a border at the top with min, max, and close buttons even though the form has no border. This form has a picture box on it, if that means anything. why this child form does not open in the specified location?