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C++ at Work: Writing, Loading, and Accessing Plug-Ins

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

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Accessing of STRING input data in custom plug-in algorithm



We have some string columns in input data, how can I access the string value instead of double one (MiningCase.DoubleValue)  during training and predicion?



Accessing the different controls inside a GridView control

how we can access a particular control which resides inside a GridView control. In this article I will show you how you can access different controls inside a GridView control. We will see how we can access a TextBox control, a DropDownList control and a ListBox control. If you are working with ASP.NET 1.X then you might want to check out my article Accessing Different Controls Inside a DataGrid.

Writing custom MembershipProvider

ASP.NET Membership mechanism allows to use the build-in server tables to store and retrieve user data. By default, this mechanism can only be used with SQL Server database to which Microsoft provides suitable MembershipProvider class.
Inheriting from this abstract class, developer can use his own table(-es) from any database and use any database engine other than SQL Server, like Oracle, DB2 etc.

RadioButton inside GridView, How to get it work as normal

Did you tried before to drag a RadioButton control inside a Gridivew templatefield, and then you attempt to select these RadioButtons , you will notice that the behavior of RadioButton control will be changed and it will work just like the behavior of checkbox control! the user will be able to select more than one radiobutton in the grid!

10 Tips for Writing High-Performance Web Applications

Writing a Web application with ASP.NET is unbelievably easy. So easy, many developers don't take the time to structure their applications for great performance. In this article, I'm going to present 10 tips for writing high-performance Web apps. I'm not limiting my comments to ASP.NET applications because they are just one subset of Web applications. This article won't be the definitive guide for performance-tuning Web applications-an entire book could easily be devoted to that. Instead, think of this as a good place to start.

Accessing SharePoint 2010 Data with Server-Side APIs

Accessing SharePoint data in server-side solutions is one of the most common tasks that you will perform as a SharePoint developer. SharePoint 2010 provides powerful server-side APIs that enable you to retrieve, add, edit, and delete SharePoint data programmatically. SharePoint 2010 also includes the new LINQ to SharePoint technology that enables you to work with SharePoint data efficiently and easily.

Writing Custom Web Parts for SharePoint 2007

As I mentioned in an earlier blog post, SharePoint 2007 is built on top of ASP.NET 2.0, which means you can now use ASP.NET 2.0 features (Forms Authentication, Master Pages, Membership, Site Navigation, New Data Controls, etc) when building SharePoint sites. This is true for both the new Windows SharePoint Services 3.0 version (which will be a free download) as well as Microsoft Office SharePoint Server 2007 (which costs money).

Reading and Writing Images From a Windows Mobile Database using UltraLite 10(C#)

Periodically I get a request for information on how to read and write binary data to a database running on Windows Mobile. If you search the Internet you can typically find examples that are available on Windows Desktops or allow you to read and write to a local file system. The problem is that it can take a bit of work to get this code to work on Windows Mobile accessing a database.

Ultimately you might be asking, why would I want to store and image in a database? Well in an environment where you synchronizing data between a local mobile database and a consolidated (central) database this can be extremely useful. Imagine if an insurance adjuster went to an accident scene, took a picture of a damaged car, loaded it into his Windows Mobile database and then replicated that image up to the Insurance headquarters for approval. All of this could be done in a very short period of time when using images in the database. Another good example might be a doctor who was waiting for a patient chart to become available. If you could store the image in a database this chart could be sent down to the doctor's device once it became available.

For this article I am not going to get into how to synchronize the images to and from a remote and central database as this is typically fairly straightforward when using a data synchronization technologies like MobiLink

XML Reading and Writing

We learned to process XML files using the Document Object Model as implemented by the XmlDocument class. To go further and make XML friendlier, the .NET Framework provides many other classes for different purposes, allowing you to create and manage nodes from custom .NET classes.
Besides the XmlDocument and the derived classes of XmlNode, the .NET Framework provides the XmlTextWriter class, which is derived from XmlWriter. The XmlTextWriter class works in a top-down approach to create, or deal with, the contents of an XML file. This class writes an XML node and moves down without referring

Writing Http Handlers and Modules in IIS 7.5

This article describes how Http modules and handlers are to be written and configured in IIS 7.5. The concept of a handler and module remains same, so dose there programming model. In this section we start off with the concept of a Http module and a Http handler, then talk about how to code them and finally describe the two methods available to configure them.

file upload in chunks or not buffering in memory before writing to disk?


What are the options for handling file uploads to reduce the memory footprint?  Is there a way to upload in chunks?  Is there a way to stream upload directly to disk instead of loading entire file in server memory?


Looking for guidance: wanting to work with AJAX architecture



I'm starting a small website that will be backed by a database, and will allow a small number of users to authenticate and select an entry in the database, and then view (and optionally update) a corresponding entry (think master-detail).

I have some flexibility in how I'll do this, but I'd really like to incorperate some newer AJAX style coding, eliminating some page postbacks. I think this is a great opportunity to learn the concepts well.

I'll probably go with an ASP.NET 4.0 site. From what I've seen there are MANY ways to go about this:

-WCF Data Services to expose the data, and consume in ASP.NET

-Page methods to expose the data, separate method to update the data

-I'd rather avoid the UpdatePanel because I'm really looking for a full hands-on approach, with learning client side scripting being an objective as well.

Beyond that, it seems that one can use jQuery to build clientside templates, but also one can use the ASP.NET AJAX template engine (in ASP.NET 4.0 I believe).

A concern I have: users should only be able to work with the data exposed via these endpoints if they are logged into the website. Hopefully I can somehow reuse the ASP.NET forms authentication cookie for this purpose. 

Well, I hope I've posted enough to a

animate effect work but the render items are messed up.


Hi all,

     I have a very unique problem, humm i think. I am using a jquery effect that animate bounce effect, i have a line in my javascript pageLoad function $("#UserBrowserInfoDIV").show('bounce'); - the effects run smoothly but what it does is mess up the bolded text in the div. I have try the items inside the div without bolding and it works fine and no render problem but when bolded the text that are bolded is quite messed up, and barely readable.

Please let me know is there anything else i can do i really would like use this effect.

P.S all the effect have the same render problem, and i am using ie8 under compatibility mode.





JQGrid Loading deleted values



This is quite strange. here is the issue:

Some Info:

1. I'm using a multi-select jqgrid.

2. I have my own delete button to delete multiple orders

The problem:

When i press the delete button on the pager of my jqgrid, the records are deleted from the database but JqGrid shows some records (4-5). On refreshing the grid, correct numbers of records are shown.

Here is the code:

function delorder() {
        var amg = $("#horder").getGridParam('selarrrow');
        var cont = amg.length;
        if (amg.length > 0) {

Why getTreeNode does not work?



I try to run a  treeview example from msdn:


I also want to use code from


Here is my code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register TagPrefix="mytree"
Assembly="Microsoft.Web.UI.WebControls" %>
 <script type="text/javascript" language="javascript">

     function xxx() {

         var myNode = treeview_one.getTreeNode(treeview_one.selectedNodeIndex);


<form id="myform" runat="server">
<mytree:treeview id="treeview_one"  runat="server" Child

Writing codes using three tier architecture.


Hello all.

I am a beginner in c#.I heard that writing program with three tier architecture are easy and maintainable.

I just wanted to know with a small example on how to write three tier architecture programs.

Thanks :-)

Category attribute of user control property does not work correctly in categories tab.



I have a User Control (ascx) and a property which a want to display in my categories tab in Visual Studio in the category named "Styles".

[Category("Styles"), DefaultValue(""), Description("The value for formating something.")]
public String MyFormatProperty
set { /* the code for set */; }
get { /* the code for get */; }

And here is the problem: Actually I do not need a get, because I only have to set the property (write only property). But when I omit the get, the property is displayed in the "Misc" category in the categories tab in Visual Studio. Only when I code the get as well, then the property is displayed correctly in the "Styles" category in the categories tab in Visual Studio.

Does anybody know why? How can I display the category correctly only with set?

Thanks, S.

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