Hide / Show Visible / Invisible Forms
Dec 18, 2009
I have a form (Form1 class) which has got a "next" button (like we have setup wizards) which shud take me to other form. Now that other form has two buttons , next and back , and it shud take me to the previous and the next form. And I want to preserve the states of each form. What I did was that I instantiated the Form2 class in the click event of the next button : [code]That does the job of showing the second form . In the click event (of the back button) handler of the second form , I have the following [code]Now , when I press the back button , the program hangs. And nothing happens. how to hide/show forms with .NET. In VB6 it's quite easy using Show/Hide methods.
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Jul 23, 2009
i was wondering this: what is the difference as in response.. should i use the .visible or the .show/.hide option.. by setting the .visible to true/false, the controls (in my case) will only appear visible or not.. by setting them to .show./hide, i guess they unload from the form, and reload in their previous state.. do correct me on this .. is this more memory use than the .visible option or the other way? i am currently designing a project containing a lot of panels/buttons/etc., that has the .visible option included for these controls. should i be using the .show/.hide option instead, or does it even make a difference, since i cannot tell from the response of my project when using either/or..
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May 18, 2012
I understand the properties to change a button from visible to invisible, but I need to be able to have two buttons alternate visibility when the first button is clicked.It's for a game. The first button is to "Begin Game" and on open, the invisible button that sits over it is called "Begin Again" which I would like to only appear once the Begin Game button has already been clicked. This would then trigger the "Begin Game" to become invisible.
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Apr 22, 2010
I have this code for hiding a table and a cell in aspx, backend vb.net
Code:
For Each row As HtmlTableRow In tab_a1.Rows
If row.ID = "a1" Then
For Each cell As HtmlTableCell In row.Cells
cell.Visible = (cell.ID = "a1")
[Code] .....
Now instead of tables I'm using tags. How can I use similar code and make div's visible and invisible?
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Jan 13, 2012
In visual basic.net I have been playing around with groupboxes and things of that nature, is there any way to group items into a box, say, buttons, and use the groupbox as a container to move / hold all of its contents while not being visible in any way? (no decoration perhaps?)
I've tried making the groupbox invisible but that makes all the items within the groupbox invisible as well.
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Jan 27, 2010
I want my form to be invisible but I want the buttons and list-box to still be visible. So basicaly I want a bunch of floating buttons and listboxes on my screen.
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Sep 29, 2010
i am familiar with Vb.net, asp.net, html and javascript. look this website: [URL] now go to the search directory: near to search button there is "Advanced Search" when u click it u will see a page that was hiden, again when u click the "Advanced Search" it will be invisible. i want to develop that portion of application on my own website. so how can do that? should i develop it using asp.net(vb.net) or javascript?
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Jun 2, 2011
Still using VS 2005. My concept is to use the same form space to display different "pages", like a "wizard" where you click the [Next] button, and the current UI disappears and a new UI appears. I want to "turn off" multiple controls and "turn on" multiple other controls. Example code: -
Private Sub
Button4_Click(ByVal
sender
[Code].....
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Jan 7, 2012
I would like to move the cursor automatically to a text box when I change it from invisible to visible.
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May 5, 2012
I'm curious if it is possible to hide a group of text boxes from view in a form until a particular condition is met, and to have a custom set of text boxes for that condition. To give an example; I want radio buttons offering choices for a manner of searching records, the user selects one and then a specific set of text boxes are displayed for the user to utilize, if a different option is chosen a different set of text boxes will be shown. Is this something that can be done?
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Jul 17, 2009
I'm having an odd problem when making a form visible and not visible and it not continuing to function. Here is what I have happening. I have a main form (frmMain) that is an MDIParent. On this form I have a menu to open a second form (frmCalculate) and populate a listview from Items in the database.
As I click or select items in the listview on frmCalculate the tag is read and data is pulled based on the id stored in that tag and fills in various fields on the form. This works great. However, I also have a context menu attached to the listview that allows me to perform a "what if" scenerio on the items I am calculating. When I select this menu, I hide the frmCalculate and open the frmWhatIf form where I can mess around with values on the item I had hilighted in the listview on frmCalculate. Nothing is pulled from or written back to the database here, all the information is filled in from fields on frmCalculate. It just allows me to look at rising costs and how they will affect my margins.... anyway.
If I then close frmWhatIf, it brings my frmCalculate back by setting its visible propery to true (never closed frmCalculate, just hid it). At this point if I click an item in the listview I get an exception for a null reference. IF however I never hide frmCalculate, I can open and close frmWhatIF without ever having an issue. Why do I lose the functionality to select items just by hiding and unhiding the form? As a test I added two menus to the toolbar on frmMain one called hide and one called show. I then opened frmCalculate with original menu item to populate the listview and selected a few items to test that it was working and then using the hide menu I made the form invisible and the show button to bring it back. This yielded the same exception so without even opening frmWhatIf the problem still occurs.
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Apr 24, 2009
I am using Process.Start in my application, which is working great.My only problem is, the program it "starts", is an installer, which takes about 5 minutes to install. I woud really like to hide all my forms and only show one that says "please wait", but i cant seem to get it to stay there till the process has finished.
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Sep 11, 2011
I have a simple GUI form to hide / show / minimize / terminate / force terminate Processes. i can do all well but for show and hide i need the MainWindowHandle to show or hide it
So here is hide process code:
Dim Proc As New Process = Process.GetProcessesById(List.SelectedRows(0).Cells(1))
Dim hwnd = Proc.MainWindowHandle
ShowWindow(hwnd,0)
If i try the same with show code:
Dim Proc As New Process = Process.GetProcessesById(List.SelectedRows(0).Cells(1))
Dim hwnd = Proc.MainWindowHandle
ShowWindow(hwnd,9)
The MainWindowHandle become 0 cuz its hidden is there is any other way to get the MainWindowHandle of Process ?
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Dec 27, 2011
I have an application in which the windows form has 3 panels. Under some circumstances, controlled by the User I want all three panels visible, in other situations I want one of the panels not visible.
The program works if I use the code:
Panel1.Visible = False
Panel2.Visible = True
The program also works if I use the code:
Panel1.Hide
Panel2.Show
Is there some advantage or disadvantage to either of the two approaches?
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Apr 8, 2010
I am attempting to construct my own date picker using code from several sources.
Why won't the calendar hide when visible?
myDate.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="myDate.ascx.vb"
Inherits="Website.myDate" %>
[Code]......
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Dec 5, 2011
make objects from the ToolBox using code instead of changing existing objects invisible then visible later?
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Jul 3, 2009
I want to be able to click on one toolstrip button and hide it while making another visible.I tried the .show and .hide expressions but they come up with an error.
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Apr 8, 2012
i'm using two backgroundworker on two different invisible forms.One bgworker starts to work before the second, it depends on the cpu usage calculated every minute.
When the second bgworker starts to work, an operation me.invoke is called to show a message, but when the code reachs the comand, the system give me this exception : impossible to call invoke or begininvoke method without a form handle.The me.invoke method is called during the dowork fase of the bgWorker.
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Jan 6, 2012
I am currently using a DevExpress (10.2) Banded GridView within my Visual Studio 2010 project. It works great except I was have an area where I allow the user to choose which columns they want visible or invisible. I noticed that if I make all the columns within a band invisible the band still remains and gives an empty column in my grid. I was wondering if there is some way to automatically
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Sep 30, 2009
I know the code to make labels invisible but i dont know how to make them invisible as soon as the program starts. where would i have to put the code fro that to work?
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Feb 5, 2010
I have 2 textboxes one for datetime picker and another for entering the name. i waant to make the datetime textbox invisible when the form is executed & when i press save the data from both textboxes should be saved into the database.
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Apr 22, 2012
I call .show() and .hide() on a form and then I want to determine the current state. I've been checking .visible to determine if the form is visible, but I've stumbled uppon a problem. My form is being rendered inside a SplitContainer which I collapse each time I hide the form. So, by logic once I hide the form with .hide() it is no longer visible, and since I have collapsed it's container, even if I call .show() it would still NOT be visible couse it's container is closed.
So, how can I simply check if .show() has been called rather than checking if the form is visible.
The final goal is to show() / hide() the form along with collapsing / un-collapsing the container.
P.S.: I know I could simply check the container and show the form accordingly, but my form also supports detaching from the container, so that wont work for me.
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Sep 29, 2009
I have created a com dll in vb 2005 and used in vb6. It's working fine.
I have a question why Windows Explorer does not show it�s version number? I have properly set both the Assembly version and File version.
Again I did create a test com dll - windows explorer does show it's version number properly.
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Aug 29, 2011
I have a problem to show and hide some div. The only thing i have is a span with a class. Where we need to click on, to show or hide the div below the parent h2 I can't add some classe's to the h2 or div (this come from some cms, where we can't add a css class), so we need to do it with some jquery.
<div>
<h2>
<span class="h2toggle">Heading (This shows an hide the div below)</span>
</h2>
[Code]......
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Mar 16, 2010
Just playing around with VB and have made a program for playing "pairs". The program displays lots of face down cards, then the user can click on them to reveal their face and try to find pairs. This is done by hiding or showing the "card reverse" picture
If the user finds a pair, the cards should stay face up, however if they do not match, they should be returned to facing down.
The pictures need to be loaded dynamically through an array...
The code I have so far is as follows...
Form1...
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
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Mar 16, 2010
Just playing around with VB and have made a program for playing "pairs". The program displays lots of face down cards, then the user can click on them to reveal their face and try to find pairs.If the user finds a pair, the cards should stay face up, however if they do not match, they should be returned to facing down. This needs to be done by hiding or showing the "reverse of card" picture..[code]
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Apr 30, 2011
I'm using Visual Basic 2008 for example i have running notepad.exe, can i hide notepad window, and then if i need it to show it again?
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Jun 6, 2011
I want to create a button that can hide an exe application. As example: this application will start spider.exe when page loads. I need a button that can hide & show the spider.exe. How can I do it with VB.NET, C#, or Java?
I tried to use:
myProcess.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal
myProcess.Start()
in page load part, and use
myProcess.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden
in button part but it does not work.
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Aug 23, 2011
I have this labels in my project[code]...
What's the best way to hide/show them?
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Apr 12, 2010
I have a form called form1 when i press button1 i open a new form [code]..
now this new form is owned by Form1 so that i cant use form1 till the new form is closed.[code]...
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