vb.net how to activate a hidden form

by Juanita Veum 10 min read
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How do I hide a form in Visual Basic?

Dec 05, 2012 · Is there a way to hide the main form in vb.net? I want to make it so users press a button and the form disappears. ... His question is regarding the MAIN form. If the startup form is hidden, the application automatically closes (if you are using the application framework, that is). – Steven Doggart. Dec 5 2012 at 21:23.

How to check if a form is hidden or not?

this.Activate(); this.Button1.Enabled = false; } // Updates the label text to reflect the current values of x // and y, which was were incremented in the Button1 control's // click event. private void Form1_Activated(object sender, System.EventArgs e) { Label1.Text = "x: "+x+" y: "+y; Label2.Text = "Number of forms currently open: "+count; } static int count = 0; private void …

How to modify the click event of the mainform button?

Aug 15, 2008 · I upgraded a vb 6 project to vb net or at least I tried to. The upgrade wizard tells me that that form activate event behaves differently in VB net. The VB6 code had a message box appear in the form activate event. Now this message box keeps poping up every time the user hits the ok button. What is the solution to this problem.

How do I add a click event to a subform?

Aug 08, 2008 · The upgrade wizard tells me that that form activate event behaves differently in VB net. The VB6 code had a message box appear in the form activate event. Now this message box keeps poping up every time the user hits the ok button. What is the solution to this problem. How is the form activate triggered in VB net compared to how it was ...

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How do you hide and show a form?

Click on the tab for the second form (the subForm) in your design and double click on the button control to display the Click event procedure. Press F5 to build and run the application. Click on the button in the main form to display the sub form. Now, when you press the button in the sub form, the form will be hidden.

How do I open a form in Visual Basic?

2:123:08Visual Basic .NET Tutorial 10 - How To Open A Second Form using First ...YouTubeStart of suggested clipEnd of suggested clipForm 2 dot show and give these brackets and that's it now when you run your program. And when youMoreForm 2 dot show and give these brackets and that's it now when you run your program. And when you click this button it will open the second form for you.

What do you mean by hiding and showing form in Visual Basic?

First, you can make a form disappear without closing it or freeing its resources (this is called hiding). To do so, set its Visible property to False. This hides the visual part of the form, but the form still resides in memory and can still be manipulated by code.Mar 1, 2002

How do you hide a form in Visual Basic?

Click on the tab for the second form (the subForm) in your design and double click on the button control to display the Click event procedure. Press F5 to build and run the application. Click on the button in the main form to display the sub form. Now, when you press the button in the sub form, the form will be hidden.

What are forms in Visual Basic?

In Visual Basic, the form is the container for all the controls that make up the user interface. When a Visual Basic application is executing, each window it displays on the desktop is a form. ... A window is what the user sees on the desktop when the application is running. A form is the same entity at design time.

Which is used to hide a form?

Use the display property to both hide and remove an element from the document layout!Oct 15, 2020

How do you hide a textbox in Visual Basic?

Click View > View Textboxes. The two textboxes you added should disappear. To hide a control, simply set it's Visible property to False. If you want to get it back, show a control by setting the Visible property to True.

What is show () in VB net?

Show function in Windows Forms to display a dialog box with OK and Cancel buttons. MessageBox. ... This VB.NET function displays a dialog box. It interrupts the user, and immediately blocks further interaction. Only one function call is needed.

Can you have multiple forms in Visual Basic?

When developing a Windows application using Visual Basic it is highly likely that the application will consist of multiple forms (otherwise known as windows). It is unlikely, however, that all of those forms will need to be displayed as soon as the application starts up. In fact, it is more likely that most of the forms will remain hidden until ...

What is a non-modal form?

A Windows form can be displayed in one of two modes, modal and non-modal. When a form is non-modal it means that other forms in the other forms in the application remain accessible to the user (in that they can still click on controls or use the keyboard in other forms). When a form is modal, as soon as it is displayed all other forms in ...

What happens when a form is closed?

When a form is closed, the form is physically deleted from memory and will need to be completely recreated before it can be displayed again. To hide a form it is necessary to call the Hide () method of the form to be hidden. Using our example, we will wire up the button on the subForm to close the form.

Examples

The following example demonstrates how to use the SetDesktopLocation, Load and Activate members. To run the example, paste the following code in a form called Form1 containing a button called Button1 and two Label controls called Label1 and Label2.

Remarks

Activating a form brings it to the front if this is the active application, or it flashes the window caption if this is not the active application. The form must be visible for this method to have any effect.

Answers

The problem you are having is in the nature of when the Activated event is raised. Whenever the active window within an Mdi application or within Windows itself shifts from one window to another the event is raised. Since a messagebox steals the focus then the Activated event is raised when it closes (the dialog result is set).

All replies

The problem you are having is in the nature of when the Activated event is raised. Whenever the active window within an Mdi application or within Windows itself shifts from one window to another the event is raised. Since a messagebox steals the focus then the Activated event is raised when it closes (the dialog result is set).

Answers

The problem you are having is in the nature of when the Activated event is raised. Whenever the active window within an Mdi application or within Windows itself shifts from one window to another the event is raised. Since a messagebox steals the focus then the Activated event is raised when it closes (the dialog result is set).

All replies

The problem you are having is in the nature of when the Activated event is raised. Whenever the active window within an Mdi application or within Windows itself shifts from one window to another the event is raised. Since a messagebox steals the focus then the Activated event is raised when it closes (the dialog result is set).

Solution 1

You are probably running this code too early, before the form is actually shown. So, it's hidden, then it's still shown by the sequence of events when the form loads. I'd try to Load event and if that does not work, look for an event that fires when the form is first shown.

Solution 2

What do I do?#N#If the event run so fast, I do not know how to solve it.#N#I create and run into another Sub, But, It still dosen't work.

Solution 3

You should not press 'answer' to ask more questions. You should perhaps buy a book on winforms. Your form generates events. They occur when certain things happen in the lifecycle of your form. You are running this code before the form is shown by the framework. Your code needs to run AFTER the framework shows the form.

Solution 4

I think to help you properly is to understand what you are trying to do?#N#i have put your code in to the load of a form that i have open and it works like you have explain.

Solution 5

Normally, a form is not displayed until Show or ShowDialog is called. The one exception is the main form, which can be minimized but not hidden.

Solution 6

The 'official' M$ way to do this is explained in Setting a Form to Be Invisible at Its Inception [ ^ ].

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Creating A Visual Basic Application containing Multiple Forms

  • Before we can look at hiding and showing Forms we first need to create an application in Visual Studio which contains more than one form. Begin by starting Visual Studio and creating a new Windows Application project called vbShowForm (see Creating a New Visual Basic Projectfor details). Visual Studio will prime the new project with a single form. Click on the Form to select i
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Understanding Modal and Non-Modal Forms

  • A Windows form can be displayed in one of two modes, modal and non-modal. When a form is non-modal it means that other forms in the other forms in the application remain accessible to the user (in that they can still click on controls or use the keyboard in other forms). When a form is modal, as soon as it is displayed all other forms in the application are disabled until the modal di…
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Writing Visual Basic Code to Display A Non-Modal Form

  • We are going to use the button control on mainForm to display subForm when it is clicked by the user. To do this, double click on the button control to display the Click event procedure. In this event procedure we want to call the Show() method of the subForm to make it display. To achieve this, modify the Click()event handler as follows: To test this code press F5to compile and run th…
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Writing Visual Basic Code to Display A Modal Form

  • We will now modify the event procedure for the button to create a modal form. To do so we need to call the ShowDialog() method of the subForm. Modify the Click event procedure of the mainFormbutton as follows: Press F5once again to build and run the application. After pressing the button in the main form to display the sub form you will find that the main form is inactive a…
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Hiding Forms in Visual Basic

  • There are two ways to make a form disappear from the screen. One way is to Hide the form and the other is to Closethe form. When a form is hidden, the form and all its properties and settings still exist in memory. In other words, the form still exists, it is just not visible. When a form is closed, the form is physically deleted from memory and will need to be completely recreated bef…
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Closing Forms in Visual Basic

  • As mentioned in the previous section, in order to remove a form both from the display, and from memory, it is necessary to Close rather than Hide it. In Visual Studio double click, once again, on the button in subForm to view the Click event procedure. Once again, because the button is in the form we are closing we need to use Me instead of subForm when calling the Close()method: Wh…
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