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 RepliesI 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 RepliesI want it to open and close after 3 seconds at each Timer1.Tick What i got so far:
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I 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
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How can i actually reload a form without actually closing it and re-opening it?By using a button click?
View 34 RepliesI have created a splash screen and it fades in. When the splash screen closes, the main form (MDI) should open. The main form opens but then immediately closes.
vb
Public Class frmSplash
Private Sub frmSplash_FormClosing(ByVal sender As Object, _
ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
'Open the MDI form.
frmMain.Show()
End Sub
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I am making a program that edits my website with the input that I put in. But, it is requiring multiple forms (obviousily), but I don't know how to make it close the one I am in while opening the other. For example: I have a form that opens first that requires a Username and Password, so nobody can obviousily use it without knowing them. When I submit the correct username and password and go on with the editing, I need the login form to close. I do not know the coding for this part. Is it:
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I am currently working on a project that has a splashscreen This splash screen is designed to be shown when the main form begins to load its requirements, and then closes once it has loaded... Currently it works like so:
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
frmSplash.Show()
dolotsofloading()
frmSplash.Close()
End Sub
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So i want these If statements to first see if discharge date has value and admit is null to do this ... and inorder to do this i have to open my other SQL reader which is dr1. becuase at this time i have dr2. open. How do i get around this since i cant read from two stream writer at the same time.
If dr2.Item("DischargeDateTime").ToString <> "" And dr2.Item("AdmitDateTime").ToString = "" Then
'patien is showing a dishcharge dat but NO Admit date
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I'm currently working on a project where we're doing some automated testing.We're using a Rohde and Schwarz Vector Network Analyzer to do our testing, and the interface it provides for communication is GPIB. On my laptop it simply plugs in as USB.
View 1 RepliesI want to make a program where I can open a program, and my vb program starts with it. My VB program will then use a timer to count to an hour, and then close out of both programs. So i started experementing with things and this is what i came up with:Dim myprocess As Process = System.Diagnostics.Process.Start("C:\Program Files\Internet Explorer\iexplore.exe")
That opens my program fine, but I dont know how to close it from there. Also I want my vb program to start automaticaly, not hit a button and my other program shows up.
Dim frm As Form
For Each frm In Forms
Set frm = Nothing
Next frm
The above code is what I used in VB6 to close all forms associated with my programs before my program closed. I have been searching for information on how to make sure all forms are closed when closing a VB2008 program.
I have seen info on using the Project Property Shutdown mode When startup form closes and I currently have this set.
Is this all that is really necessary? Will the garbage disposal close everything else to free up RAM?
Also, if I have several forms open and want to close all from the main form without closing each one individually, what is the best approach? Is there a collection like in VB6, go through the collection, compare it to the name of the main form and close it if it is not the main form?
When connecting to a Sybase ASE database via ODBC using the code below, I'll occasionally get a '[IM006] [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed' error. this be caused by my code? I read here that I should be using the 'With' statement instead, but I don't understand how that would affect this.
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I got stuck up with one issue of inventory/stock calculations and put my problem in four threads and grasped some ideas and thoughts for that. But could not find SQL query for this issue in those threads. i am able to construct SQL query for stock/inventory calculations. Since I could not find any SQL query as an example on this issue inspite of spending a lot of time and search, deifinitely there might be so many examples but i was unable to reach them, so after constructing this query i wanted to share my humble effort with all. It may be a second thought for beginners like me having the same problem.The second purpose of placing this query here is to welcome improvement or alternate of this query.
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Finally starting some coding in VB.Net, I notice over the years, that we can say (in VB6)
Code: Dim MyForm_Stock as NEW frmStock
in the same session, being able to open, say 3 Stock Forms at the same time and maintain details independently of each of the other forms. Also am I able to maintain separate Database connections and the same table being opened and updated independently of each other by each separate form. What is actually taking place in terms of memory being used by each process? My ultimate goal is to be able to have ONE Module with all the possible data Connection and Recordset Opening and closing options, which I have failed miserably to do in my VB6 experience. Data access is an obvious module based set of subroutines. Others could be Date routines eg, Week Number of the year, Days Diff, Days to, etc. [Code]
It is my goal to write a program to run a retail store. I am an intermediate Access developer, so I have a good grasp of the basics.However, I find that developing in VB 2010 is quite different.I will have forms for:
Company Information
Employee Information
Supplier Information
Customer Information
Invoices & Purchase Orders
All I really need to know at this point is the code to open and close each form.
I have the following code to close a form which is a child. The problem is that when it closes, it closes the MDI parent too.
Private Sub frmTransaction_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
If ListView1.Items.Count >= 1 Then
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I have 2 functions for opening and closing Windows Explorer, which is still working fine with Windows XP and even Vista. The same functions not working on Windows 7. Following are the functions:
Dim HTProcess
As New Hashtable
Private
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I have 2 functions for opening and closing Windows Explorer, which is still working fine with Windows XP and even Vista. The same functions not working on Windows 7
Dim HTProcess
As New Hashtable
Private
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And 'CloseFolder' functions not able to close the Windows Explorer in Windows 7
Alright, I have a vb6 LEGACY application and new Functionality (Form) written in c#. I have a VB.NET COM Class as a wrapper. I can launch the .NET Form just fine. THe problem I am having is closing the .net form from vb6.
Example:
In VB6, I have something like this:
CODE:
But it does not work becuase frmViewer is Nothing for some reason. how I should close the .NET form that was launched from VB6?
I have a parent form that has a list of items and each item has a unique ID. The user can open one or many of the items in a child form (it is set up in a tabbed MDI), but it can only open one instance of each item at a time.
In the parent form, I was going to make a collection (or something like that, maybe there is a better way) to keep track of which items are open in the child forms. I need to know when each child is closed so that it can be removed from the collection and reopened at a later time. I was thinking that when the child form closes, it somehow does something (like raise an event) that tells the parent form to remove the unique ID from the list of current open child forms.
My questions are, is this a good way to do this and I am pretty sure I would use the form closed event in the child form to update that parent form, but as well, I didn't know if this is the best way of handling it.
If raising the event is a good way, are some examples on how to do it out there? I found some for controls, but not while the form is closing/closed.
I am working on a project that has the user building scrapbook pages through several different forms. When the user selects something a presses a button I have the information about the selection load to a list box which is on a CheckoutForm. One of the options I have is for the user to save what they have made (this includes the information in the list boxes) and return to a previous form to build another page. I have been trying to use the Me.Close() but it does not save the information and using Me.Hide() displays the wrong elements on the forms.
View 5 Repliesi have a parent form which is having a grid view. In the KeyDown event of the grid view i am calling a child form. If the user closed the child form, my application should close both the parent form and child form. What i have done is, i declared a boolean in the child form and passed the boolean value to parent. May be the code below will give the picture of what i am trying to do.
Private Sub gvJournalEntryDet_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles gvJournalEntryDet.KeyDown
I have a unique challenge that I just cannot seem to get by...I have a form with a series of listboxes that allows the user to rename items in the listbox (I probably should be using a listview control instead). When the user right-clicks and selects rename from the context menu I show a simple form with two labels & text boxes showing the selected list box item in one textbox...the other is blank waiting for the user to enter a new name. What I'd like to do is when the user closes the rename form, the information is passed back to the calling form and a listbox refresh method is fired to show the changed name. Couple question:
First, is there an easier method to implement the renaming concept in a listbox (probably should be using a list view) i.e., have I overcomplicated things?
I have 2 forms. When a user clicks something on form1, form2 pops up. After user is done with form2 and closes it (where the dataset is updated), I want form1 to "reload" the dataset to reflect changes made in form2.
View 1 RepliesIs 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 RepliesWhenever 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
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I used this project in VB2005 express, but also in VB2008.
In 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()
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I 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:
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I a suppose to when the user closes form1 display a messagebox. The messagebox should ask the user if they are sure. If they click yes let them close the form otherwise do not let them. This is the code I have
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim result As DialogResult
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Form1 is a mdi container. It has a bunch of forms that can load inside of it as mdi children. If I close each open form inside the form1, and then click the red X at the top right, application exits fine.If I click the red X without closing the forms inside I get: An unhandled exception of type 'System.CannotUnloadAppDomainException' occurred in mscorlib.dll
Additional information: Error while unloading appdomain. (Exception from HRESULT: 0x80131015) However I can break from it. How do I get the application to not show that error? What must I do to fix those inside forms or close when the red x is clicked?