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by: theWizK |
last post by:
Hello all.
I have noticed that when I generate a strongly-typed dataset from an xml
schema that the DataTables that are generated have their constructors marked
as internal. What this means is when I try to instantiate one of the
strongly-typed tables from this dataset from a different assembly, I cannot.
Let me provide examples...
If I have a simple dataset like this:
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by: Nedu N |
last post by:
Hi All,
I am facing problem in copying content of table from a untyped dataset into
to a table inside the typed dataset. I wanted to copy the data into typed
dataset in order to ease the further processing using typed references.
DataSet ds = getDataFromDB(); - i am getting the dataset ds from a
webservice
I have got MyXSD which decsribes the shcema for the table which i am getting
from the webservice
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by: Rakesh Rajan |
last post by:
Hi,
I have a method, which opens a connection, creates an untyped datable, fills it and returns it back.
I have defined a typed datatable in my application as well. For some reasons, I have to call the above mentioned method to get data. Unfortunately, as it returns an untyped datatable, I can't assign my typed datatable variable this value (a base type can't be converted into a sub type automatically).
Without resorting to looping thru...
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by: jdipalmajr |
last post by:
I noticed that I was getting performance issues when I referenced a
strongly typed dataset using untyped references. When I changed my
code to only use strongly typed references the performance was snappy.
Why might this be the case? Seems like it should work either way.
I am also using this dataset in a datagrid reference. Could the
databinding be involved somehow?
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by: Przemo |
last post by:
Hi,
I wonder about performerce comparision between these two
types of DataSets. Are benefits of typed DataSets enought
to beat speed of untyped ones?
Or it doesn't matter?
What do you think?
Przemo
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by: Ronald S. Cook |
last post by:
I've always used untyped datasets. In a Microsoft course, it walks through
creating typed datasets and harps on the benefits. It has you drag all
these things around ..wizard, wizard, wizard... code gen, code gen, code
gen.
What's at the end looks slick, but then there's a ton of generated code that
I'm going to have to maintain now.
I.e. I like typing things myself (don't like wizards) so I can know exactly
what I've done.
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by: =?Utf-8?B?UGV0ZXI=?= |
last post by:
Based on what I have read, I think I need to do the followings:
1. DataSet.WriteXmlSchema
2. Xsd.exe
I assume this will work but I wonder how to generate strongly typed dataset
from untyped dataset durning runtime.
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by: zlf |
last post by:
Hello
As a known issue, WCF does not allow to transfer typed DataSet. So I have to
copy all data from typed DataSet to untyped DataSet(same table names, column
names and row data). What is the most efficient way to do that? I tried to
remove DataTable from typed one then add to untyped one, but I tell me it is
forbidden to remove tables from typed DataSet.
Thanks
zlf
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by: Rachana |
last post by:
Hi,
I have understood Data Sets but what is meant by typed/untyped/
strongly typed datasets. Can any one explain me or suggest any site/
article, to get these concepts (and their comparisions) cleared?
Thanks,
Rachana
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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: 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: 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: 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: 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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