How To Check If Form Is Shown / Hidden

Jan 1, 2010

I can show/hide a form, but is there anyway for me to check if a form is hidden/shown? After the form calls InitializeComponent(), and activates the OnLoad Event, it automatically calls the Show() of the form. I do not wish my form's default startup mode to be Shown. I tried overriding onshown method and call Hide in OnShown. It works but this method looks pretty ugly to me though so is there anyway that I can stop the form from even calling Shown when it was first initialized?

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How To Check If A Form Is Hidden

May 7, 2011

Is there a way of checking if a form (the mainform) is hidden?

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Asp.net - Hidden/Shown AsyncFileUpload Control Doesn't Fire Server-Side UploadedComplete Event

May 26, 2010

I recently came across the AsyncFileUpload control in the latest (3.0.40412) release of the ASP.Net Ajax Control Toolkit. There appears to be an issue when using it in a hidden control that is later revealed, such as a <div> tag with visible=false.

Example:

Page code -

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="act" %>

[Code].....

I have a breakpoint on the UploadedComplete event but it never fires. However, if you take the AsyncFileUpload control out of the <div>, making it visible at initial page render, the control works as expected.

So, is this a bug within the AsynchUploadControl, or am I not grasping a fundamental concept (which happens regularly)?

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Check If Row Is Hidden?

Apr 6, 2011

I have a little trouble with my code. You'll see. I'm using the developer express ridControl tool. I have a Gridview in it with a table bound to it. The control lets you filter your info. I have a Select all button that works, the only problem is that if you filter the data and press the select button it selects all the rows, not only the ones that are actually shown on the grid, and I need only the shown ones.

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Get All The Id (hidden Column) Of All Check Items?

Jun 18, 2012

I have this issue right now. I have a listview with checkbox. Now what I want to achieve is get all the id (hidden column) of all check items and pass it to arraylist so that I can pass it to SQL like this:

dim intProductID as new arraylist
For i = 0 To lv_list_products.Items.Count - 1
If lv_list_products.Items(i).Checked = True Then

[Code].....

"DELETE * from t_products WHERE f_product_id in(" & intProductID & ")" The reason I do this is to have only one time open of database connection, One of the member suggested it is not good to open and close database specially if it is within the loop. One more issue is the command within the array I need to separate all id with commas so I will not have error on SQL.

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Telling The Program How To Check If User Typed The Text Article Shown Correctly?

Jul 31, 2011

I need some help on telling the program how to check if user typed the text article shown correctly word by word as they are typing. I've tried

Usertypehere.Text = Articleshown.text

But the program only consider the user to type correctly if they finished typing the whole article.

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Find When Dialog / Modal Form Is Shown For My Main Form?

Feb 3, 2010

I want to be able to check if there is currently a dialog or modal form shown for my form so that I can close it.
Is there a way to do this?

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TopMost Form - Messages Form Would Be Hidden By The Main Form

Nov 20, 2009

I have a tool window that I want to stay above the main application form, but not stay on top of all windows forms. Similar to the floating properties window for visual studio - it always stays on top of the main VS window, but if I select another program, like internet explorer, the floating properties window will be behind internet explorer.

What I have is an application that has several forms that may be displayed at the same time. I have a Messages form that displays messages generated by the code in the form, that gives the status of the application. Obviously, the user would not normally be working on this form, but they may want it to be visible to see the status messages from the program (File saved confirmations, etc). So, my two options right now are I can set the form to be on top of all other windows forms or, when the user clicks on the main application form, the messages form would be hidden by the main form.

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VS 2005 Form Load Vs Form Shown Events?

Aug 25, 2010

aside from the difference mentioned below, what are other difference the two events might have and how will affect the application as a whole? What is more preferred to use and why?

Form Load:
*Do stuff*
Form shows up on monitor
Form Shown:
Form shows up on monitor
*Do stuff*

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Controlling Opacity Of Form Shown In A Form?

May 27, 2009

The end result we're looking for is a slideshow effect where a section of our main form shows a sequence of secondary forms which fade in/out on a timer.We can fade the forms in/out when they're shown individually, but the opacity setting doesn't seem to work when they're shown inside another form. What I've got, for testing, is code that should simply reduce the opacity to 10% after showing the inner form for a half-second, long enough to notice the reduction-except I don't see any change.

Dim f As New Form2()
f.TopLevel = False
Me.Controls.Add(f)[code]........

The opacity change takes effect without refreshing the form when shown 'stand-alone' but I've tried refreshing both the inner & outer form anyway, with no change.

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Setup Flags To Check If "SetupOption" Has Been Shown?

Mar 11, 2010

Using Vb net (2005) in Win Forms, in my app. I have many Win Forms one off them is "SetupOption" this need to be shown at least once at the first time I run the app and never ever after unless I need to change some settings,. then my question: How to setup flags to check if "SetupOption" has been shown, if it was shown then do not show it again unless ask to, through a menu click. p

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Asp.net : Make Hidden Additional Attachment Hidden And Visible?

Mar 13, 2012

I want to make 5 attachment options in that 4 out of the 5 are hidden.but when he clicks "more attachment" link it will show the other 4.Im using ASP.NET with VB?

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Determine Whether A Form Has Raised Its Shown Event?

Aug 5, 2011

I have an MDI application that can either run in TABBED or WINDOWED mode. When a user selects something from the menu a form is shown. All menuItem clicks pretty much look the same:

Dim frm As New <SomeForm>
frm.MdiParent = MDIParentForm
frm.Show()

[code].....

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Form Layout Not Shown In Designer View?

Apr 19, 2010

I moved a project so I could work on it in two places. When I opened the project, I have only worked on it from one computer, my form did not show in the solution explorer so I moved it back. I opened the project and everything was there but I was not able to see my form layout in designer view. The code is there and it builds and looks right but I can't see any of my form components and I need to edit some properties.

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How To Get Context Menu Shown In Child Form

Feb 13, 2009

I have a MDI app. At the moment I merge my context menu from my child to the parents tool strip menu. But now I don't get a context menu show in my child form?

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MsgBox Appearing Before New Form Shown On Screen

Nov 2, 2011

When I initialize a new form to open, the subroutine in the new form starts before the new form is shown on the screen and so when the subroutine finishes and the MsgBox comes up, the form isn't showing. Is there a way to make the form pop up first before the subroutine starts?

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Raising An Event Every Time A Form Is Shown

Apr 19, 2012

The MyBase.Shown event only gets raised the first time a form gets shown. How do I make something happen every time the form is shown?

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VS 2008 - Finding Out If Form Loaded And Shown

Sep 25, 2010

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.

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VS 2008 Allow The User The Option Of The Form To 'not Be Shown Again'

Apr 22, 2012

im hoping to be able to create a form that welcomes users to the application that i have created, however i want to be able to allow the user the option of the form to 'not be shown again'

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App Form Is Hidden Behind Other Forms?

Jan 25, 2012

I have a new application, and for some unknown reason, it's hidden behind other opened applications. It is shown when launched on desktop only if desktop is empty. How do I force my application to be in front of desktop ?

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Form Is Hidden Behind Other Applications

Mar 27, 2009

I have made a validation application, the application runs in the tray and responds to events of another app such as save document, on this event my application runs, validates the document and creates a pop up message of errors in the document. However the pop-up is hidden behind the other application, the other application is locked because it is waiting for my app to finish. I have tried combinations of show(),activate(),bringtofront () with no success i have also tried SetForegroundWindow() and SwitchToThis Window() for win api but with these the app still just flashes orange in the taskbar behind the other application which is locked.I think it is almost definatly a problem with stealing focus from the other application but im not trying to make an annoying pop-up, it is needed and only appears when there are problems with the document the other application is locked and will not respond untill okay is clicked on the pop-up and it is easy to miss the flashing icon in the taskbar

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Hidden Form Keep Showing

Jul 8, 2009

I wrote an application with multiple forms.One form is used to show any kind of messages helpful to the user (frmMessageWindow).The user has the option to not show frmMessage Window.I would like to hide frmMessageWindowbut keep it loaded and continue to add messages to it so they will be available when the user chooses to show the form again.I use frm MessageWindow.Visible = false to hide the form and this works fine.But there is a check box on frmMessageWindow and if I check the value from another form it makes frmMessageWindow visible.

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DataGridView's Column Values Disappear After The Form Is Shown?

Aug 16, 2011

I have a MainForm which contain SecondaryForm as a control of the MainForm.SecondaryForm contains DataGridView which loads data from sql server and I add a collumn named SUM that SUMs all the values of the same row. This is provided within the LOAD event of the SecondaryForm.When SecondaryForm.Load events finishes, the program goes back to MainForm right after the line "SecondaryForm.Show" and here the values of the column SUM disappear.When i write those values runtime, they never disappear.

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Modal Dialog With Secondary Form Shown In Taskbar?

Jul 21, 2009

I have two forms for my application, that are visible in the Windows taskbar. When a modal dialog is popped up on the main form, the secondary form is locked. However, when the user clicks on the secondary form on the taskbar, it appears over the modal dialog box, and is basically frozen. Is there a way to ensure that the modal dialog box does not draw underneath the secondary form? The topmost property is no good, since this draws on top of everything, even stuff not related to the application.

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TreeView - Converting Data From App To Be Shown In HTML Form

Jun 15, 2010

I am busy with trying to convert data from an application so that it can be shown in HTML form via websites. I need to make a tree wherein I have 3 main categories each with their own sub-categories. These are the categories/sub-categories.

MENU- ParentID, ChildID, NLtitel, IconID, NLFilenaam
ROOT- ParentID, ChildID, NLtitel, IconID
SUBMENU- ParentID, ChildID, NLtitel, NLFilenaam

How I go about coding this to create my tree? I have managed to create something but am not sure if I am at all on the right lines.

Here is the little bit of code:
Public
Class Form1
Private
Sub Form1_Load(ByVal
sender As System.Object,
ByVal e
As System.EventArgs)
[Code] .....

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VS 2010 - Option Set To True But No GridLines Shown On Form

Aug 21, 2010

I brought up a new project in Visual Studio 2010 and found that there are no gridlines on the form. I went to Tools, Options, Windows Form Designer, General and found the Show Gridlines option set to True. I tried turning it to false and back to true with no change.

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Databinding To Hidden Form Fields?

Nov 19, 2010

I'm using simple data binding and have in total 3 fields on my Form and 2 of them are hidden. The two hidden fields are calculated by filling in the first one. bellow you find the code I'm using, when the update is done only the first field that is fill in is written to the Database. How can I change the code to get all 3 of them written to the Database

Public Class frmLicenseKey
Inherits System.Windows.Forms.Form
Dim dsLicenseKeyInfo As DataSet

[code].....

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Datagridview Seems To Cause Startup Form To Appear Even After Been Hidden?

Feb 15, 2010

I have created a DB with access and imported it into my application. What I am trying to do is startup with regi.vb and test to see if there are any entries into the DB and if so, hide the startup form(regi.vb) and show the login.vb form. have done a test and it loads regi.vb then I enter some details into the textboxes and then after clicking a button, it inserts the info from the textboxes into the DB. It then loads login.vb, which is fine, but then if i exit the app and reload it, it tests to see if there is anything in the DB and when it finds that there is, it reloads the bloody regi.vb(startup form)!!So why, when it discovers that the DB is not empty, it re-opens the startup form??

I have used login.show()
me.hide()
Here is the code for the startup form (regi.vb)

[code].....

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Access Or Update A Field In Underlying Dataset That Is Not Shown On A Form

May 11, 2012

I have a Windows Form application with a form that has an underlying data set. When the users click a particular button, the code clears some fields on the form but also is suppose to update a value in the underlying dataset on a field that is NOT displayed on the form.

In VB6 and VBA this is very easy to do. I simply says Forms!formname!NameOfUnderlyingFieldNotshown and pass it the value. How do I do this in VB.net with a Windows Form and underlying dataset?

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DateTimePicker - Extra Space Shown In Date On Form Load

Jun 7, 2010

On form load I set my datetimepicker.value = date.now
It shows up as 6/ 7/2010
I want it as 6/7/2010
How can I get rid of that extra space?

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