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by: Carel Lotz |
last post by:
H
We have ported our VB 6 application into VB .NET but are still integrating with a few COM + applications written in VB6 running on our application server (Win 2000 Server). We have the proxies to link to the application server installed but we every now and then get a error when we try to make a call to a component running on the app server. The error message is something like
Object reference not set to an instance of an objec
at...
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by: Glenn Serpas |
last post by:
I have Class A and Class B .. Class B has a private member that is a pointer
to a Class A object.
private:
B *mypointer ;
I instantiate the A object
A* myobject new = A();
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by: the_grove_man |
last post by:
I guess my question can go in two directions. I create applications
that run multiple queries against a database. Generally speaking in the
past I have used a Data Control (calling it dat1) making it invisible
and have used this whenever i needed it.
dat1.databasename = app.path & "mydatabase.mdb"
dat1.recordsource = "my query"
dat1.refresh
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by: J-T |
last post by:
I can instantiate my object in my *ASP.NET* application in two ways:
A)
public sealed class RSSingleton
{
private static ReportingServiceProxy m_RsProxy=null;
static RSSingleton()
{
m_RsProxy = new ReportingServiceProxy();
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by: Brian |
last post by:
I have many similar classes in a project, one for each type of report
my app can create. I want to instantiate them based on a value passed
in by a scheduler module.
Right now I have
Sub RunReports(sReport)
Select Case sReport
Case "CRByDistrict"
oReport = New CRByDistrict
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by: PIEBALD |
last post by:
An XML Schema document is an XML document, and (in .net) an XML document can
be loaded from a string. Is there a simple way to load an XML Schema document
from a string? The closest I can see is to wrap the string in a stream and
pass the stream to the constructor.
Stepping back further, I might want to load the XML Schema into an XML
document object and validate it to be sure it's a valid XML Schema before I
try to instantiate the...
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by: GiBo |
last post by:
Hi all,
I have a class URI and a bunch of derived sub-classes for example
HttpURI, FtpURI, HttpsURI, etc. (this is an example, I know there is
module urllib & friends, however my actual problem however maps very
well to this example).
Now I want to pass a string to constructor of URI() and get an instance
of one of the subclasses back. For example uri=URI('http://abcd/...')
will make 'uri' an instance of HttpURI class, not instance of...
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by: Tomas |
last post by:
A newbie question: How can I instantiate objects dynamically in
VB.NET. E.g. I have the object 'Player' and I would like to
instantiate it with the several instances (James, Gunner, etc.),
without in advance knowing how many objects (employee1, employee2,
etc)
Dim player1 As New Persons.Players
Dim player2 As New Persons.Players
Dim player3 As New Persons.Players
....
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by: learning |
last post by:
Hi how can I instaltiate a class and call its method. the class has
non default constructor. all examples i see only with class of defatul
constructor. I am trying to pull the unit test out from the product
source code, but still want to execute them under nunit.
I am trying this idea on nunit sample source code. Here is my class
and the experiemental code: both money.cs and Imoney.cs is compiled to
cs_money.dll. then I create another...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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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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