Call Close Even Within A Using Block?
Mar 22, 2011
Using sr As New System.IO.StreamWriter("C: est.txt")
sr.WriteEnd
End Using
Using sr As New System.IO.StreamReader("C: est.txt")
sr.ReadToEnd
End Using
This is equivalent to:
[Code]...
Am I right in saying the attempt to read the file may fail if the Garbage collector had not got around to disposing the StreamWriter and closing the file. If so where is the benefit is using the Using Statement in this case. Is is better practice to use
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Nov 9, 2011
I'm making a program which should close and block different programs, but also i want i to be a able to close and block different websites. So if i have my browser opened and i'm on www.facebook.com then i want to block the acces for this site.
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Sep 2, 2011
I am making a program that NEEDS to be password protected, so i made a textbox with a code so that when the user enters the right password it lets you in. But if the user/person enters a wrong password 2X it will kick you out. So is there a way to keep the
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Jan 19, 2012
In Visual Studio 2010, create a VB.net Windows Forms App. Add 2 forms: Form1 and Form2. In the Form1 Load event type Form2.Close(). Now if we look in the method definition Close() is not a static (shared) method. So how is this possible to compile or to work at run time.
Furthermore, do the same thing in C# and Form2.Close(); doesn't compile.
What's going on? Why is this possible in VB.net and what is actually happening when that line of code is executed?
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Sep 3, 2009
I am trying to close my application and I have coded on the form closing, form closed events to call an exit form which asks the user for confirmation to exit or not. All works fine. When I press the X button on the winform things act different. On the main form where I press the X btn I store some user ID data that I use throughout the app. If I press cancel on the exit form that data is lost from the main form and cannot be used afterwards. So if the user pressed by mistake the X btn and then presses cancel on the exit form the application loses some stored data and many functions stop working.
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Jan 16, 2009
I'm currently in the process of building a text editor type program, and have run into a brick wall. I haven't done VB in years, so I may just need a little reminder on some things. I have coded everything so far as far as opening files, saving them, changing fonts, colors, etc. However, I'm looking to add a Close button to my menu strip that will just close the currently opened file, and not the entire program, while also ask the user if he/she would like to save before closing the file, and then if they select yes, it will show the save dialog, and if not, it will go ahead and close the currently opened item.
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Jan 17, 2009
I have set up a notify icon for my form. I want to make it so that when the user clicks the close button that it doesn't close the form it just takes it to shows the notify icon. They can exit the program from the notify icon. Can someone tell me how to keep it running?
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Nov 29, 2009
It seems like whenever i click my close button the application will close but the debugger is still in active.How to exit this debugger? :)
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Mar 4, 2011
In a program I'm working on, I want a "Loading..." dialog to close when it can't log in to a site using the username and password provided by the user. Basically, I have the code set up right because the function it is supposed to carry out when that occurs does work, but for some reason it ends up in some really weird stuff happening. In the Loading form, I have it set to do "Form1.Show()" and then "Me.Close()", assuming it would simply show the login form and then close the Loading form. However, when this happens, the Loading form closes, and then for only an instant Form1 shows, and then the Loading form shows and Form1 closes. This happens forever until I stop the debugging, and I can't seem to figure out why. Am I using the wrong method? What exactly does Me.Close() do anyways? All I want to do is close the form and open another
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May 12, 2010
I have two Close() functions in same class as below:
[Code]...
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Feb 12, 2011
sometimes, when I use Form.close() when debugging my program, although the form is closed, the application is still running. I noticed this behaviour when using the msgbox function.
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Aug 30, 2009
how to use windows calculator in vb.net 2008?
use System.Diagnostic.Process.Start(calc)
its working but i want when application close it also close this calculator how?
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Aug 30, 2009
my web browser is my main form and it has a number of sub forms , how can i set it that when i close the main form my sub forms dont close ?
At the moment when i close the main form all the forms close
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Mar 2, 2009
I have a situation where me.close() doesn't close the form. I have a form with a button with the code seen below. What happens when the button is clicked is the new form shows, but the original form(calling form) is still there. When I go into debug mode, I can see the me.close() execute, but nothing happens (calling form stays open). When I close the second form both forms close. If I comment out the call for the second form to open the first form closes without problem.
Private Sub cmdNext_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdNext.Click
Dim f As New frmOrder3
[Code].....
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May 17, 2011
I connected to the Informix server using RazorSQL, created a stored procedure and tested it, getting the expected answer, so the procedure exists in the database in some form.
I then run the following code:
If ConnectToInformix() Then
Dim cmd As New IfxCommand("dc_routeHasOutstandingQuantity", conn)
cmd.CommandType = CommandType.StoredProcedure
[Code]....
This error does not occur when calling the stored procedure from a live SQL connection.
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Mar 22, 2012
I want to create an ExpressionTree where a Func(of Vector, Vector, Vector, Vector, Double, Double, Vektor) should be called. So I use
Expression.Call(Forces(0).Function.Method, {Vec1, Vec2, Vec3, Vec4, Double1, Double2})(Vec1-4, Double1-2 are declared as ParameterExpression and Forces(0).Function as Func(of Vector, Vector, Vector, Vector, Double, Double, Vector). But I get an AgrumentException, because Forces(0).Function.Method has seven Arguments. (System.Runtime.CompilerServices.Closure as seventh argument at Index 0).
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Mar 22, 2010
I am really new to Visual Studio and VB and I am having trouble closing a single form:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.Close()
End Sub
When I use Me.close() associated with this button it closes the entire project and not just the single form can anyone.
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Mar 20, 2009
I have a main form that has a button with which a smaller form is shown. Think of the smaller form as the Find/Replace dialog in many applications, such as Notepad. It's important that the form is (what I believe is called) modal. What I mean is that it always stays on top of the main form. I ensure that by calling the Show method with "Me" as the owner argument. Whenever the small form loses focus it will not disappear into the background but stay visible (albeit out of focus). If you don't understand open up Notepad and have a look at the behavior of the Find/Replace dialog.
Here's my problem: instead of actually closing the form when the X is pressed, I want it to simply Hide itself, so its position and the state of any controls (checkboxes etc) is preserved automatically.To achieve this I simply cancel the FormClosing event and Hide it:
vb.net
Private Sub Form2_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
[code]....
To show the form, I use the following (note the (Me) to make the main form the owner of the form; this ensures that it remains visible even when it is out of focus):
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Form2.Show(Me)
End Sub
Now. When I run my project, and open the Form2 (small form), then hide it again (by 'closing' it), I can no longer close the main form (Form1)! It seems the main form cannot close when the small form still exists (albeit invisible)...?? When I don't use the Me argument in the Show method, I don't get the behavior I want. I know I can set the TopMost property to True but that will also cause it to become visible on top of all the other forms, even windows not part of my application.
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Nov 18, 2009
i am using me.close() to close a project in vb.net. but by using project is not closing properly. is there any another method to do this?
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Dec 11, 2009
In vb dot net, Windows form details should save if I press enter key should save and close and escape key should close without save
Currently it happens on onclick event of a button of Save and Cancel, but I wish the keyboard events also work
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Apr 16, 2009
The form is an About Us form so has nothing on it only a text box and a OK button.
[Code]...
Why won't the button close the form? I'm puzzled, I tried another button just in case with the same result. UPDATE: I set a break point on Me.Close() and it isn't reaching it when I click the button, I created a new button and the same thing happened.
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Feb 14, 2011
I try to transfer a vb6 application to vb2010. In the vb6 I start with a login panel that the user enter uid and password autenticate with the DBServer if ok show application main menu and close the login form. the order of the me.close() after the mainform.show() does not change, The application ends.
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Jun 3, 2011
i have problem in vb.net window base application.i want to block TAB key from the keyboard.PI code or any useful hint to do that.
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Jul 6, 2009
I assume i have more number of If and less End If i cant find it where its going wrong?
______this is the code below _________________________________
Private Sub CommandButton2_Click()
Dim app As Object
Dim Slide As Object
Dim ppApp As Object
[code]....
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Nov 26, 2009
im doing a login i have finish it but you can close it by using alt+f4 so i need to block the alt key im using vb 2008
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May 25, 2012
I am trying to convert a DLL function call which has the Callback function routine called within the DLL function call.The DLL function call signature is like this:
typedef void *HANDLE;
typedef HANDLE HACQDESC;
DECLARE_HANDLE (HWND);
[code]....
how to convert this DLL call to VB.NET and also how to create the callback function and send it as parameter to this function
call.
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Jul 20, 2011
How can i add this to Me.Controls within the With block. [code]
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Nov 7, 2006
I am looking for a way to block registry changes unless I choose to allow them to be made. So basically if an application tries to make a change my program would display a dialog with information of the change and I can either click Allow Change or Disallow Change.
Only thing is I am not sure how I go about stopping a registry change before it happens.
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Jun 11, 2009
it is possible to block the window key using vb.net...
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Jul 4, 2011
in vb6 to block value in text box i using :
text1.setfocus
sendkeys "+{home}"
How if i use in vbnet 2005 ?
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