|
|
|
|
|
|
|
Technologies:
ADO.NET,Visual C# .NET
|
|
Total downloads :
|
|
|
Total page views :
|
3968
|
|
Rating :
|
|
0/5
|
|
This article has been rated :
|
0 times
|
|
|
Similar ArticlesMost ReadTop RatedLatest
|
|
Related EbooksTop Videos
|
|
|
Description
|
|
The Complete Visual C# Programmer's Guide, written by the authors of C# Corner, covers most of the major components that make up C# and the .NETenvironment including Windows Forms, ADO.NET, GDI+, Web Services, and Security. The book is geared toward the beginner to intermediate programmers.
|
|
|
|
|
|
|
|
|
|
|
|
|
I had a serious performance killer when using SetParentRow in the creation of a DataSet in ADO.NET.
After some trial and error I found out it is very important to call SetParentRow first and add the childRow to the child table later.
In the first case the performance of SetParentRow is linear, in the second case it is exponential when adding more rows. Check out the C# examples and results.
Version 1 = fast
for (j = 0; j < (number of parentROws); j++)
{
parentRow = parent.NewRow();
parentRow["parentID"] = j;
parentRow["Name"] = "Parent"+ j.ToString();
parent.Rows.Add(parentRow);
for (int i = 0; i < 10; i++)
{
childRow = childs.NewRow();
childRow["childName"] = "ABCDFEGHIJKL"
childRow["childId"] = (i+1);
childRow.SetParentRow(parentRow); // 1: set relation
childs.Rows.Add(childRow); // 2: add row
}
}
Version 2 = slow
for (j = 0; j < (number of parentROws); j++)
{
parentRow = parent.NewRow();
parentRow["parentID"] = j;
parentRow["Name"] = "Parent"+ j.ToString();
parent.Rows.Add(parentRow);
for (int i = 0; i < 10; i++)
{
childRow = childs.NewRow();
childRow["childName"] = "ABCDFEGHIJKL"
childRow["childId"] = (i+1);
childs.Rows.Add(childRow); // 1: add row
childRow.SetParentRow(parentRow); // 2: set relation
}
}
processing time in seconds:
#parentrows v1 v2
1000 0,64 1,20
2000 1,20 4,21
3000 1,87 16,56
4000 2,60 53,86
5000 3,40 116,23
6000 4,28 211,97
7000 5,67 347,43
8000 6,37 527,09
9000 6,92 761,68
10000 7,14 1057,74
|
|
|
Login
to add your contents and source code to this article
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
C# Consulting is founded in 2002 by the founders of C# Corner. Unlike a traditional
consulting company, our consultants are well-known experts in .NET and many of them
are MVPs, authors, and trainers. We specialize in Microsoft .NET development and
utilize Agile Development and Extreme Programming practices to provide fast pace
quick turnaround results. Our software development model is a mix of Agile Development,
traditional SDLC, and Waterfall models.
|
|
Click here to learn more about C# Consulting. |
|
|
|
|
|
|
|
Introducing MaxV - one click. infinite control. Hyper-V Hosting from MaximumASP.
Finally – a virtual platform that delivers next-generation Windows Server 2008 Hyper-V virtualization technology from a managed hosting partner you can truly depend on. Visit www.maximumasp.com/max for a FREE 30 day trial. Hurry offer ends soon.
Climb aboard the MaxV platform and take advantage of High Availability, Intelligent Monitoring, Recurrent Backups, and Scalability – with no hassle or hidden fees.
As a managed hosting partner focused solely on Microsoft technologies since 2000, MaximumASP is uniquely qualified to provide the superior support that our business is built on. Unparalleled expertise with Microsoft technologies lead to working directly with Microsoft as first to offer IIS 7 and SQL 2008 betas in a hosted environment; partnering in the Go Live Program for Hyper-V; and product co-launches built on WS 2008 with Hyper-V technology.
|
Dynamic PDF
ceTE software specializes in components for dynamic PDF generation and manipulation. The DynamicPDF™ product line allows you to dynamically generate PDF documents, merge PDF documents and new content to existing PDF documents from within your applications.
|
Go.NET
Build custom interactive diagrams, network, workflow editors, flowcharts, or software design tools. Includes many predefined kinds of nodes, links, and basic shapes. Supports layers, scrolling, zooming, selection, drag-and-drop, clipboard, in-place editing, tooltips, grids, printing, overview window, palette. 100% implemented in C# as a managed .NET Control. Document/View/Tool architecture with many properties&events. Optional automatic layout.
|
Dundas Software
Dundas Chart for .NET is the most advanced .NET charting package available today. With an extremely complete feature set, elegant architecture and easy implementation, Dundas Chart can quickly add advanced Charting functionality to enhance and transform ASP.NET and Windows Forms applications. Whether you are implementing charting into internal projects, or building applications for clients, Dundas Chart offers advanced technology and advanced results to get the most out of data.
|
Clickatell's SMS Gateway
Clickatell's Developer Solutions allow you to SMS enable any website or
application via a range of API's. Learn More about our API connections.
|
Microsoft Visual Studio 2010
Microsoft Visual Studio 2010 offers more to developers than any other
Visual Studio release. Work more productively and collaboratively-with
greater control over your work at every step. The Beta 2 can give you a
head start on achieving efficiency.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|