Set Form.Visible=False In Form.Load?

May 12, 2010

Based on code that executes in Form.Load, is it possible to disable displaying that form after the handler for Form.Load is complete? I'd like to have a commandline switch that disables showing the form, but still runs the application. I've tried this, but it doesn't work:

Code:
If InStr(Environment.CommandLine.ToLower, "/trayonly") Then
Me.Visible = False

[code]......

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Me.Visible = False In Load Event Of Form?

Jun 1, 2009

i write Me.Visible = false a statement in the load event of the form my application has only one form and it call itself to hide. but when i run the program it doesn't hide itself i put the breakpoint on the statement to see if it even executes or not. it executes fine but no effect what it suppose to do i also have a notification icon added to a form to see it running in system tray.

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Set Calling FORM Visible = False By CALLED FORM

Sep 6, 2010

Requested were made by Businese Analyst to set the few Main FORMs VISIBLE PROPERTY TO FALSE when the POPUP FORM is loaded.

[Code].....

When the MAIN FORM loads the POPUP FORM, on the FRMPOPUPCUSTOMER-FORMLOAD even, it has to set the MAIN FORM Visible to False.

When FRMPOPUPCUSTOMER FORM IS UNLOAD it has to set the MAIN FORM Visible = TRUE.

How to the coding is to ensure that different MAIN FORM when loaded FRMPOPUPCUSTOMER it will turn the MAIN FORM Visible to FALSE.

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VS 2008 Visible = False Before The Form Shows Up?

Feb 21, 2011

I got a couple of issues with my windows application VB.Net. I seem to cannot set the form to be invisible before it shows up for a second, there is no option in the properties of a form and also if I set the form to visible = false before the form is loaded it doesn't work.

So this does not work:

Browser.Visible = False
Browser.Show()

and this does work but the form shows up for a second which I am still not very happy with

Browser.Show()
Browser.Visible = False

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VS 2005 : Load A Form And Allow It To Run It's Code In The Form Load But Keep It Not Visible?

Dec 14, 2009

How can I load a form and allow it to run it's code in the form load but keep it not visible. I want it to do what it needs to but but not display.

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VS 2008 Button Set To Visible = False Causes Form To Not Open Properly

Jan 1, 2010

I have a form which won't open properly under certain circumstances if a particular Button is set to visible = false. Under the same circumstances if the Button is set to visiblbe = true the form does open properly or if the line of code at a certain place where it is set to either visible = true or visible = false is commented out or not there then the form opens properly. If any one of the 5 phases on my form are turned on then the problem doesn't ever occur but if none of the phases are on then the problem does occur. I just found a fix for the situation but I still am not clear about what exactly is going on.

[Code]...

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Make Form Visible For The First Time From Another Form (form.visible = True)

Aug 18, 2009

Below is the exception code info. when I try to make form visible for the first time from another form then I get an exception code. something like 'a required variable not set'

Quote:

CODE:

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DataGridView - DateTime Visible On Form Load

Sep 11, 2010

I have a access table column ("d") and rows with value Datetime. How can I ..... when form load make the datetime now ..visible. What is the code for making the rows with datetime value now start with index 0.

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Mdi Form And Show Form - Error "Form That Is Already Visible Cannot Be Displayed As A Modal Dialog Box"

Jan 26, 2010

I'm new in .Net and I have an application with windows form "LOGIN" When users enter the user and password and click "ok", then if user passes validation then I have the code Show(MDIMainMenu) (I'm trying to open an mdi form), but I receive the following error: "Form that is already visible cannot be displayed as a modal dialog box. Set the form's visible property to false before calling Show. Error Number 5"

[Code]...

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Make Several PictureBox Images Randomly Visible = False And Then Back To Visible = True Giving The Appearance Of Flashing Or Blinking Images?

Jun 28, 2010

I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:

Dim picLight(2) As
Boolean
For intX

[code]....

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Jumping Between Forms - Making A Form Visible And Not Visible

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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VS 2005 - Form Load - Retains The Previous Values During The Form Load

Jul 27, 2009

Imports System.Data
Imports System.Data.OleDb
Public Class Form1
Dim con As OleDbConnection
Dim cmd As OleDbCommand


[CODE]...............

The insertion part of the form works great. But my problem is in the form load part......If i leave a field blank(Null),then perform Save operation,close the form after successful insertion and then reopen the form,then it retains the previous values during the form load......This is only in case where i leave a field blank in the previous data entry in the database.......But if i enter values in all fields then form load is working great.

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Button.performclick Not Work When It Visible False?

Aug 1, 2010

Button.performclick not work when it visible = false?

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C# - Make A Repeater Table Visible = False?

Aug 3, 2010

I have a document management system which creates a report showing people who own which document. There are times where people have 0 documents and in that case I would like the repeater table for that person to not be visible. I have looked around for a while and have not had much luck, I have repeaters nested inside repeaters but if the first repeater is not visible the rest should follow.

[code]...

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Class For Making Object Visible.False

Dec 21, 2011

I am trying to make a customer class that will simply make a bunch of controls (hotspots) Visible value = False.

For instance: WinStartSpot.visible = False

Thing is I have roughly 60 "spots" that need to be turned on and off as the user clicks through the program (its a very simple OS simulator) I tried to make a class using boolean return but that failed miserably. how to code a class like that?

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DataGridView (slow Processing Of 'visible = False')?

Jun 19, 2010

A DataGridView in my VB.NET 2008 program contains over 15,000 rows. I loop through the rows, totalling groups of rows and appending 'total rows' and one 'Final total row' to the DataGridView. That works fine. I want to initially hide all rows except for the total rows, giving the user the option to show all 'detail' rows. If i place the statement << dgvTitleCounts.Rows(intRow).Visible = False >> in the loop, execution time increases by three minutes and that is unacceptable.

I see two options: (1) find a faster way of making all rows invisible; and (2) place the total rows in a separate DataSet and bound DataGridView.

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VS 2008 Textbox's Value Is Null When Visible Is False?

Dec 16, 2009

I have a couple of textboxes whose databinding's text is set and also readonly is true and visible is false. but when I try to read their values they are all null unless I turn their visibilty to true. The same method is also needed to add a new row to the table (when using bindingsource1.addnew()).

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VS 2010 Setting A Property Visible To False?

Sep 17, 2011

Can someone clarify if there is ever a need for the below?

When setting a textbox "Visible" property to False is there any reason why I should also set the "Enabled" property to false.

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Make The Timer To Wait Until Two Buttons Are Visible = False ?

Mar 13, 2011

i want to make a match game but i don't no how to make the timer to wait until two buttons are visible = false this is my exsample:

Button1.Visible = False
If PictureBox1.Tag = "major2nd1" And Button11.Visible = False Then
Timer1.Stop()

[Code].....

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Panel's Visible Property Won't Change From 'False' To 'True'

Mar 25, 2012

I am stumped on this one. I have a panel (pnlKeyPad) that won't change the visible property when I try to set it to True. But when I try to set the Dock Property to DockStyle.Fill it succeeds. I have tried them in different orders, setting the parent property to the splitpanel and nothing seems to fix it. The panel is on a splitpanel that is visible. The panel is set to visible = false by default.

Any ideas of why this panel won't switch to visible when I specifically set it to visible?[code]...

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Setting Large Number Of PictureBoxes To Visible - False

Mar 7, 2010

Dim lv As Integer
For lv = 1 To 33
picPileCard(lv.ToString).visible = False
Next
That's the code but its saying the name hasn't been declared.

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Turn A Control's Visible Property To True Or False?

Aug 11, 2011

I know how to turn a control's visible property to true or false, the only thing I don't know is: If I have, for instance, 40 group boxes in which only one is visible, when I click on a button, the first group box visible = false and the second group box visible = true, and when I click on it again, the second group box visible = false and the third group box visible = true, and so on I don't want to write the codes for every controls, since it will be quite time consuming, I want to use fewer codes to achieve this objective,

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VS 2010 Datagridview - Set The Visible Property Of The ID Column To False

Mar 21, 2011

Having an issue with my data gridview. I've set the visible property of the ID column to false, and in the designer the column is hidden, yet it still shows up when i run it. Now if i set it to True it shows the column twice.

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Load The Main Form Of A WPF So That A Separate Thread Goes And Gets Data From The Database While The Form Is In An Apartmentstate?

May 15, 2012

How do i load the Main form of a WPF so that a seperate thread goes and gets data from the database while the form is in an apartmentstate? (drag-able / movable) I Know this is possible with opening a new window from your main form like this :

Private Sub openOrderWindow()
Dim OrderWindow As Orders = New Orders
OrderWindow.ShowDialog()
End Sub

[code]....

I've tried putting MyBase.ShowDialog() and .Show() and .9000+ other things The only benefit I've got out of using a seperate thread to load from the databse is i can see the screen right away (as oppose to it being a transparent box until it loads) but i cannot move it around or minimize it?is there any way to make it Movable while it loads?

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Progress Bar In Status Bar To Move When Load Any Child Form Inside The MDIParent Form

Sep 16, 2009

i am asking about using the progress bar into the status bar to move when i load any child form inside the MDIParent form.

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Retrieve The Selected Row Cell Value If It Is Visible Property Is False In Gridview?

Jan 6, 2011

how to retrieve the selected row cell value if it is visible property is false in gridview ?

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Call A Form Load Parent Event From A Child Form?

Jun 3, 2011

I have two forms. Form A and Form B. Form A has a datagrid that is populated from a SQL Database Table query. When a button is pressed Form B is launched that allows you to add a record to the database table. I need for the datagrid to be refreshed and show the newly added record when I close form B and go back to the parent.

[Code]...

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VS 2008 Populating Cbobox On Form Load For A Child Form?

May 14, 2009

i am having an issue populating two combo boxes on form load. The program will connect to an access database and pull data as instructed. Then as it pulls each record it puts it into the combo box.

This was working.. atleast i think it was. i dont recall it ever not working, however i wasn't looking for it.

My problem is that if when i load the MDI parent form and have it skip the selection form and the login form and load the next form in the sequence, it loads everything perfectly. However if the select form is loaded first, then the login form and then the form i need loaded, it will not populate. The only difference between the two different loads is that the login form calls a function that loads the form as a new project.form

I did this so that I can have multiple forms open at a time. I am assuming my problem is that I need to get the child forms handle then populating controls using that handle? but i think if I had to do that then I would beable to populate the comboboxes on the first form load using the login method of opening the form.

Here's my code.

vb.net
Private Sub frmLine1t5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Text = "Line " & LineNumber & " Test Form"

[Code].....

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VS 2010 : Load A Child Form By Default In MDI Parent Form?

Jan 23, 2011

I want to load a child form which is a login form by default when the parent form is loaded.Right now when I click new file on the toolbar of the parent form, then only the login form is loaded but i want it be loaded by default without clicking anything.

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VS 2010 Load Another Form When The User Closes The Current Form

Feb 26, 2012

I am after some code to load another form when the user closes the current form. I have tried this

[Code]...

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