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by: Steven Bethard |
last post by:
In the "empty classes as c structs?" thread, we've been talking in some
detail about my proposed "generic objects" PEP. Based on a number of
suggestions, I'm thinking more and more that instead of a single
collections type, I should be proposing a new "namespaces" module
instead. Some of my reasons:
(1) Namespace is feeling less and less like a collection to me. Even
though it's still intended as a data-only structure, the use cases...
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by: MattB |
last post by:
Hello. I have a vb.net (asp.net) application that uses ado.net datasets.
At one point, I need to check a text field in a DataTable to see if there's
any text in it before performing text operations on that record. I thought I
could just test using something like this:
If Not IsNothing(e.Item.DataItem("guest_name")) Then
....
End If
But it seems a value of DBNull passes this test and evaluates as not
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by: Paul |
last post by:
Anyone have code that emulates the Nz function in Microsoft Access?
In Access it is:
Nz(Value as variant, Optional ValueIfNull as Variant) as Variant
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by: David Lozzi |
last post by:
Howdy,
I have a function that uploads an image and that works great. I love ..Nets built in upload, so much easier than 3rd party uploaders!
Now I am making a public function that will take the path of the uploaded image, and resize it with the provided dimensions. My function is below. The current function is returning an error when run from the upload function: A generic error occurred in GDI+. Not sure what exactly that means. From what...
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by: bhavin30 |
last post by:
Hi Guys,
I have a quick question. I think code will explain it the best.
This is what I am doing for one of the columns during databinding on my
grid:
<asp:TemplateColumn>
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
<ItemStyle Font-Size="11px" Font-Names="Verdana"
HorizontalAlign="Center"></ItemStyle>
<HeaderTemplate>
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by: Bilz |
last post by:
Ok, lets say I have a generic method:
public T Testing<T>() : where T:class
{
T myT = getStuff() as T;
// Do something with myT
return myT;
}
How do I call it dynamically? The following code does not work, but is
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by: Dave |
last post by:
If Iwant to check if dataset1.SelectQuery1.column1 ==
System.DBNull.Value. How do I do this? What I wrote above will give an error.
--
L. A. Jones
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by: =?Utf-8?B?QkpT?= |
last post by:
I have written a Generic method that takes an object, a type, T, and returns
a System.Nullable (Of T) depending on whether or not the object IsDBNull.
It was working fine until I tried to pass a string as the object and my own
custom Structure as the type, T. Then I received an InvalidCastException.
This is despite the fact that a CType from a String to my Structure works
fine. I assume I probably need to implement some interface that...
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by: =?Utf-8?B?RXRoYW4gU3RyYXVzcw==?= |
last post by:
Hi,
I have written a generic method which does different things depending on
the type of the parameter. I got it to work, but it seems really inelegant.
Is there a better way to do this?
In the code below, ColumnMap is a simple struct which basically has three
properties, Header (a string), Index (an int), TypeOfData (which is a
DataType which is a local eNum). _Mapping is a local List<ColumnMap>.
public ColumnMap GetMap<T>(T value)
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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: 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: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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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: 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: 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: 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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