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by: Vanessa |
last post by:
Hi,
I would like to know whether there's any way for me to pass an object by
reference to another form?
Regards
Vanessa
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by: Alex Stevens |
last post by:
Hi.
I have a class and it exposes a property, which accepts a parameter
collection object.
I want the class to use the parameter object and update it.
However I don't want to use a copy of the collection.
So I innocently open up my class, and modify the Set sub to have BYRef
instead of BYVal, and the IDE says 'Set' parameter cannot be declared as
'ByRef'.
Why?
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by: Robin Tucker |
last post by:
Although I've been working on this project for 8 months now, I'm still not
sure of the difference between ByVal and ByRef. As most objects in VB are
reference types, passing ByVal I've discovered allows me to store a
reference to the object I passed by val, to change that object and for the
change to be reflected in the callers copy of the reference (confused?).
Well, what is byref for in that case?
I'm coming from a C++ background...
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by: Terrance |
last post by:
Hello, I was wondering if someone can help me understand something. Below is
some code that I got from the MS website that is suppose to authenticate for
the username and password on the local machine. I tested this code in VB.net
2003 in a WINDOW FORM class and it seems to work fine. However, when I test
it in VB.net 2005 Express Edition it works for the login portion but it
doesn't display the error message if the user name and password...
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by: aName |
last post by:
How can this work ?
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwindowsformsdragactionclasstopic.asp
In Vbasic( see code below) e is pass ByVal so a copy is put on the stack when the handler is called and it is not suppose to have side effect.
But they clearly do side effect e.Action = DragAction.Cancel
To do that shouldn't we have at least ByRef Argument ????
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by: Henry Jones |
last post by:
Using VB.NET 2005.
I have a Function that I would like to pass the form name and the textbox
name to.
-----------------------------------------
Function DoSomeThing(byref frmOBJ as Object, byref txtOBJ as TextBox) as
integer
frmOBJ.txtOBJ.text = "Some text goes here"
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by: dav61000 |
last post by:
I have a parent form that uses a Treeview Control and I would like to pass the node selected to a child form where the user will add update or delete the record selected using a dataset. Is there a way to pass the selected node as a parameter to the child form?
Here's my code thanks in advance!
Private Sub PopulateTreeView(ByVal inParentID As Integer, ByRef inTreeNode As TreeNode)
objConn.Open()
myReader =...
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by: Siegfried Heintze |
last post by:
Why does VB.NET V2 force me to pass by value for my set function? When I try
to change it to const byref it gives me a syntax error. It seems very
inefficient to be passing strings around by value when a reference to a
constant string object will do fine (all we are going to do is copy it). In
my case, would the byval for the set function cause a superfluous copy?
Thanks,
Siegfried
class person
dim m_name as string
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by: Tanzen |
last post by:
Here's what I'm trying to do in vb.net 2005.
I have a public declared method that sets the value of a control on a
form, but that form could change, so I don't want to code its actual
name. I want it to be a parameter in the module method so that you
pass the form name of whatever form called the method.
So let's say we call the method from form 1:
UpdateText(frmName)
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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