C# Corner

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  • ADO.NET Database ExplorerJan 20, 2001. The sample connects to the SQL server database and shows you a tree view like interface of all the tables.
  • Get a database table propertiesJan 22, 2001. Get a table properties such as column names, types etc using DataColumn and DataTable.
  • Database Explorer-IVJan 25, 2001. This is version IV of the Database Explorer, which include the support for Access Database with SQL Server.
  • Write Relational Data to an XML FileMar 15, 2001. This article shows you how you can write data from a database to an XML file using DataSet.
  • Programming in ADO.NETMar 19, 2001. A simple example shows you how to read a database table in a dataset and display in a list view control.
  • Mail Merge Program - Part 2Mar 21, 2001. This is a simple mail merge program (Part 2). This program reads from the access database (by default) from a specified table.
  • Virchk.cs: A C# file Scan Utility for Generating MD5 Signature FootprintsJun 13, 2001. Virchk.cs is a file scanner utility, which traverses the files in a directory and all it's sub directories, to generate a MD5 hash signature footprint of the targeted extensions file.
  • Populating and Editing a DataGrid in ASP.NETAug 17, 2001. I will show here , how to develop DataGrid, which is able to retrieve data from joined tables and editable.
  • Oracle Database ConnectivitySep 26, 2001. This is a GUI based data entry application which shows how to add, modify and delete records using Oracle Database.
  • Oracle Database ViewerOct 17, 2001. This is a GUI based application which connects to an Oracle database depending upon the DSN, username and password that you provide. It then shows the list of tables on the left hand side in the form of a treeview.
  • Mapping Objects to Relational DatabasesNov 01, 2001. The application generates C# Class files for each table in a relational database. I have used Mysql and ODBC.NET for this project. The application only supports MySQL right now.
  • FlashCards Language Program : How to read and save Images in a Sql Server Database using ADO.NETNov 09, 2001. I thought it would be fun to write a simple program that displayed flashcards from a database and at the same time, show you how to read and write images to the database. This program is a simple flashcard program that talks to a single table in a Sql Server Database.
  • Using Interfaces in .NET RemotingNov 30, 2001. In this article, we will create a remote object that will return rows from a database table. For the sake of simplicity I have used the NorthWind database that is packed with the installation of the Microsoft SQL Server.
  • FlashCards Language Program : How to read and save Images in a Sql Server Database using ADO.NETFeb 19, 2002. I thought it would be fun to write a simple program that displayed flashcards from a database and at the same time, show you how to read and write images to the database. This program is a simple flashcard program that talks to a single table in a Sql Server Database.
  • A Database Web ServiceFeb 22, 2002. This program is a Web service, which contains Web methods that return a dataset after querying a database (any database) given the connection string, the password, the database, the table, the user ID and the SQL commands.
  • Create a SQL Server Database dynamically in C#Mar 05, 2002. In this article, I’ll show you how to create a new SQL Server database and its objects such as table, stored procedures, views and add and view data. I’ll also show you how to change database table schema programmatically. You’ll see how SQL statement ALTER TABLE is useful when you need to change a database table schema programmatically.
  • .NET Remoting: The Interface ApproachMar 26, 2002. In this article, we will create a remote object, and access this object using the Interface. The object returns rows from a database table.
  • Reflecting Data in .NET Classes - Part IV: From Database TableApr 08, 2002. In this article, we will be looking at how to "reflect" data from the most common data source - Database tables.
  • TWINXBASE ServiceSep 09, 2002. This service scans in a directory by using FileWatcher component and when a file arrives, then the service will check the extension of the file, if the file has the extension .DBX then it will read the contents of the file and communicate with the database (C:\FILESERVICE\DB\MyDB.mdb) and insert / update / delete the records in the database -table.
  • Working with COBOL Data Groups in C#Sep 11, 2002. In this article we will begin with a C# console application calling a COBOL DLL file. The C# application will pass it a number of occurrences to create in the table (much like a user requesting a specific number of months to report on).
  • Accessing Text Files using ODBC Data ProviderNov 12, 2002. In this article, I will show you how to access Access database files using ODBC data provider.
  • Cryptography in Microsoft.NET Part I: EncryptionDec 12, 2002. Microsoft .NET has pre-built solutions to all of these in each application domain, viz., ASP. NET, Web Services, Serviced Component etc. It enables building secured application by simple configuration as in ASP.NET to full fledged programmable security as in code access security and Cryptography.
  • ADO.NET, COBOL and Stored ProcedureDec 13, 2002. A stored procedure is basically a series of SQL statements that reside on the database. The procedure could create a new table, retrieve data from one or more tables, update one or more tables or perform many other tasks.
  • Cryptography in Microsoft.NET Part III: Digital CertificatesJan 08, 2003. Part-I and II of this article discussed the basics of cryptography and its applications in real world enterprise solutions. Part-I discussed the nitty-gritty of encryption and its implementation in Microsoft .NET Framework Class Library (FCL). Part-II discussed the hashing and signature algorithms and their implementation in FCL. It also discussed the two common cryptography applications namely digital envelope & digital signature.
  • Caution When Using SetParentRow of a DataSetJan 13, 2003. I had a serious performance killer when using SetParentRow in the creation of a DataSet in ADO.NET.
  • Hash Password GeneratorFeb 10, 2003. This visual tool generates the hashed password using either SHA1 or MD5 hashing algorithm depending on the choice you make. It will display the hashed password in the read only text box, it can also copy the hashed password to clipboard on your choice for easy paste operation.
  • Developing Secure Web Site with ASP.NET and IIS: PartIIMay 07, 2003. Authentication is a very important element of developing secure sites. It is the starting point of a secure environment for the protected resources. I have discussed several authentication mechanisms available in ASP.NET and how they join with IIS to provide a secure platform to develop sites in Part I of this article. I will be looking at Form Authentication and how to implement it in several sample web applications.
  • Add Column Dynamically to DataGrid to Display CalculationMay 08, 2003. In this article we'll see how to create a DataGrid column which displays the calculation of more than one field in the database table. The calculation could be addition, multiplication or even filtering rows.
  • How to Display Data Vertically?May 08, 2003. This article explains how to display data vertically rather than typically horizontal rows.
  • Deleting a DataGrid Data Based on a Column ValueJul 24, 2003. In this article we'll see how to delete the records of a DataGrid based on a column value in the database table.
  • Real Life SQL and .NET: Part IIIJan 13, 2004. Welcome to the world of SQL and the huge, growing database technologies of today’s business all over the SQL world. By reading this article, we have begun accepting the knowledge that will soon be required for survival in today’s world of relational database and data management. Alas, for the reason that it is first necessary to provide a background of SQL and cover some preliminary concepts that we need to know, the majority of this article is text in paragraph format.
  • Real Life SQL and .NET: Part IVJan 13, 2004. Welcome to the world of SQL and the huge, growing database technologies of today’s business all over the SQL world. By reading this article, we have begun accepting the knowledge that will soon be required for survival in today’s world of relational database and data management. Alas, for the reason that it is first necessary to provide a background of SQL and cover some preliminary concepts that we need to know, the majority of this article is text in paragraph format.
  • Real Life SQL and .NET: Part IJan 13, 2004. Welcome to the world of SQL and the huge, growing database technologies of today’s business all over the SQL world. By reading this article, we have begun accepting the knowledge that will soon be required for survival in today’s world of relational database and data management. Alas, for the reason that it is first necessary to provide a background of SQL and cover some preliminary concepts that we need to know, the majority of this article is text in paragraph format.
  • DataTable Events in C#Feb 17, 2004. The ADO.NET DataSet is a data construct that can contain several relational rowsets, the relations that link those rowsets, and the metadata for each rowset. The DataSet also tracks which fields have changed, their new values and their original values, and can store custom information in its Extended Properties collection. The DataSet can be exported to XML or created from an XML document, thus enabling increased interoperability between applications.
  • DataSets in Microsoft .NET - Part 2Mar 09, 2004. This article explains sorting, searching and filtering support provided by dataset and data table objects.
  • University Student Registration Application in ASP.NETMay 03, 2004. The aim of this project is to implement a Web application, where students can register for an online course. If the user is an administrator, he can add and remove courses and modify the student information.
  • Dynamic SQL Server Database Creation in .NETMay 03, 2004. This article explains step by step dynamic creation of a SQL Server database, tables and stored procedure using Visual Studio codename Whidbey and VB.NET.
  • Cryptography in .NETJul 31, 2004. This article gives a brief overview of Cryptography and the Cryptography support provided by the .NET Framework. I begin by introducing Cryptography and then proceed to examine the various types of it. In particular, I review and analyze the various cryptography algorithms and objects supported by .NET. I conclude after proposing and briefly discussing the algorithmic technique that would work best for you.
  • Securing Your ASP.NET Web Applications Aug 31, 2004. Web application security is not just about attackers hacking websites, stealing sensitive information from websites, sending high traffic to websites with denial of service attacks, viruses, worms and Trojan horses. Are these are the only problems that we have? The answer is no. There are other problems that are frequently overlooked.
  • Public Key Token Generation AlgorithmJan 31, 2005. The PublicKeyTokenGenerator class and a small utility that generates Public Key Token from the Public Key using that class.
  • Insert Master-Detail Data using Transact-SQLJun 24, 2005. Microsoft SQL Server 2000 SQLXML allows among other things to manage batch operations in a database, which reduces significantly the need of more than one round-trip to a database. OpenXML is a Transact-SQL statement that allows to represent data in XML format and can be used to insert, update, and delete more than one row (represented by an element) in a table or group of tables.
  • ASP.NET Session StateSep 21, 2005. Session state is nothing more than memory in the shape of a dictionary or hash table, e.g. key-value pairs, which can be set and read for the duration of a user's session.
  • Adding and retrieving Images from a SQL Server TableSep 23, 2005. This article describes the process to add and retrieve images from a SQL Server table using ADO.NET.
  • How To Get All Database Tables and TableColumns in Oracle Nov 08, 2005. In this article, I will show how can I fetch all tables and corresponding columns from an Oracle database using C# and Oracle .NET Data Provider.
  • Hashtable in C#Nov 14, 2005. Hashtable is useful when you need to store data in a key and value pair. This article shows how to use hashtable in C#.
  • How to Overcome Error "Access to the Path Containing 'hash.web' is Getting Denied."Jan 08, 2006. The article is about how to overcome with the error that reads "Access to the path containing 'hash.web' is getting denied."
  • Displaying Single Table Database Hierarchy with DataSet and DataRelationsMar 03, 2006. Hierarchies can be difficult to store SQL tables and even more difficult to query and display. This Example will show you how you can use DataRelation to convert single table hierarchy in to nested XML and then use XSLT to transform it to nested list.
  • Customized Binding Using CollectionBaseMar 04, 2006. In this article I am trying to explain the use of CollectionBase class. In a simple example I used CollectionBase to bind a DataGrid control with data from Employees table of NorthWind database. So please be sure that your system exists with NorthWind database before using the sample code along with this article.
  • Deploying ASP.Net 2.0 Web site to Production Server: Part IApr 03, 2006. Deploying ASP.NET 2.0 web site is the first issue facing the developer. This part of the article gives you a step by step to how to move membership tables from MS SQL express Edition to your database that you are used on your web site. The second part we will go in details to configure our asp.net web site.
  • Deploying ASP.NET 2 Web Site to Production Server: Part IIApr 10, 2006. On the first part we discussed in detail how to move our database which contains the membership tables from the default aspnetdb Database to our database. On this part we will show how to change the default settings of asp.net membership and role providers to read from tables which stored on our database.
  • Accessing Crystal Report in ASP.NET using C#May 01, 2006. This article is for web-developers who want to access crystal reports in ASP.Net by using multiple tables or views etc. This application might help them and save their development time.
  • Merging data into single table from multiple tables (resultsets)May 15, 2006. This article shows how to reduce the number of trips to improve performance by merging data into single table from multiple tables (resultsets).
  • Nested Repeater : Display Hierarchal Data in Web Form by Using ASP.Net RepeaterJun 02, 2006. This article features how to display hierarchal data from multiple tables using an ASP.Net repeater control in a web form.
  • Introduction to Common Table Expressions – SQL Server 2005Aug 03, 2006. This article delves into the concepts of Common Table Expressions (CTE) in SQL Server 2005 and their usage.
  • Maintaining Transactions in Enterprise applications using ADO.NET Transactions Aug 07, 2006. This article explains usage of System.Transactions to update tables of two different databases with two different data providers (SqlClient and OleDB) in Atomic(ACID) way.
  • How to Extend User Profile in ASP.Net 2.0Oct 03, 2006. This article will give you guidelines to extend user profile in standard table format which created from aspnet_regsql command by creating a detail table which will be linked to the main user table.
  • Working with HashTable in C# 2.0Nov 13, 2006. We often need to store more than one dimension data in a list and data may not be an integer or string. This article shows how to use the HashTable class to store object type data.
  • Strategy for querying Microsoft Access as an In-Memory Database using DataSets and ADO.NETJan 09, 2007. This article describes how you can read tables in from MSAccess up front in your application and then query the tables in-memory using some powerful features of the DataSet and ADO.NET
  • Implementation of MD-5 Jan 22, 2007. Describing, how can we implement MD5 and how it works and what is purpose of Hash algorithm.
  • Windows Communication Foundation callbackJun 12, 2007. This article is intended to illustrate how to implement callback operations in WCF through a common business scenario where the service needs to notify that some events has happened to the client. During a callback, in many aspects the tables are turned: the service becomes the client, and the client becomes the server.
  • How Do I Bring a Microsoft Word Table into a DataGridView?Jun 12, 2007. This Article will answer the question: "How do I import a table in MS Word into a DataGridView using Visual Studio's built in Tools for Office.
  • WPF Database Communication Adding new Record to the DatabaseSep 06, 2007. WPF Database communication Adding new record to the database (XAML-MS-Access), I have a XAML form with FirstName, LastName, Email & Contact fields in it on click of submit button it will first check if the same email address is exists in the table else it will add new record I have made use of OleDbTransaction to perform add functionality.
  • Cryptography in Asp.netSep 07, 2007. This article explains what is Cryptography? Why it is needed? and the types of Cryptography.
  • Retrieving Middle Rows from a TableOct 16, 2007. This article helps in retrieving middle rows of a particular table irrespective of its columns and data types.
  • Query Optimization in SQL Server 2005Dec 19, 2007. This article offers suggestions on how to optimize query performance in SQL Server 2005.
  • View database structure using C#Jan 16, 2008. This article describes an easy approach for examining all of the tables, views, and columns in a database.
  • SQL Server backup utility using VB.Net and SQL-DMOFeb 05, 2008. This article allows you to take backup of any SQL Server database using SQL-DMO library. It allows you to take backup of selected tables, views or stored procedure.
  • Using XSL and .NET To Display Database Tables in your Web BrowserFeb 07, 2008. This article describes how you can leverage .NET and XSL as a powerful and flexible means to rendering database reports into your Web Browser.
  • Using OUTPUT Clause for Getting Deleting Information from Several Tables.Apr 01, 2008. In this article I will explain how you can use such a T-SQL (SQL Server 2005) feature as OUTPUT clause in order to get information about rows, which were affected, when deleting process is executed for several tables, “connected” by foreign keys. The examples are written using T-SQL and C#.
  • The Concept of Shopping Cart in ASP.NET with C#Jul 16, 2008. This article will just give you the brief idea how to make simple shopping cart with dropdown GridView and data table.
  • Working with WPF Table using XAML - Part IAug 12, 2008. In this article, I will use WPF table in XAML format. This one defines a flexible grid area that contains rows and columns. At the contrast of the Grid object witch is defined in the System.Windows.Controls, the table object is defined in the System.Windows.Documents namespace.
  • Working with WPF Table using C# - Part IIAug 26, 2008. In the previous article, Working with WPF Table using XAML - Part I, we discovered how to perform this task using XAML. Now, we will see how to do the same using C#.
  • Physical Data Organization and IndexingOct 07, 2008. This article is intended to explain the main storage structures used in database systems through examples in Microsoft SQL Server and Oracle Database.
  • Simulating Autonomous Transactions in Microsoft SQL ServerOct 10, 2008. In the article, I will cover how to use table variable techniques in order to simulate the autonomous transaction behavior of Oracle databases in Microsoft SQL Server.
  • Introduction to Page Layout using DIV elementFeb 03, 2009. This article explains about benefits of using DIV tag over TABLE in page layout design.
  • Paging and Sorting ListViews with ASP.NET MVC and jQueryMar 23, 2009. This article provides a simple example of using jQuery along with the jQuery tablesorter and tablesorter.pager plug-ins to provide sorting and paging support for a listview within the context of an ASP.NET MVC application. JQuery has partnered with Microsoft and is now integrated within the IDE to include the availability of intellisense support.
  • BizTalk Mapping. Using the Database Lookup FunctoidApr 06, 2009. In this article, I will show how to use the Database Lookup functoid to map incoming XML node to a database table column whose result value is set to a target XML node.
  • CRUD Operation on Associated table in ADO.NET Data Service May 27, 2009. This article will explain , how to perform data base operations on associated table in ADO.NET Data Service
  • Rows.Count, Column.Count and IEnumerator using ADO.NET with C# and Database ServerJul 29, 2009. In this article I will explain you how to make a SQL database connection and show information in data grid. Count the number of rows and columns in the table and show the records in text boxes using IEnumerator interface.
  • Swapping GridView rows Up and DownAug 22, 2009. In this article I am posting code about swapping GridView rows Up and Down using Data Tables.
  • Common Table Expression(CTE) in Sql server 2005Sep 14, 2009. This article explains about Common Table Expression(CTE) in sql server 2005 with sample sql queries.
  • SQL Server Important System Views and TablesSep 21, 2009. This article list out the important system tables, stored procedure and views.
  • Data Components in Visual Studio .NET Part2Oct 13, 2009. In this article I will explain about managing and viewing data through Server Explorer.
  • Creating Data Adapters with the Data Adapter Configuration Wizard Oct 14, 2009. This article will help you in understanding Creating Data Adapters with the Data Adapter Configuration Wizard.
  • Using Table Variables Instead of Temporary Tables in SQL ServerOct 23, 2009. This article demonstrates how to use Table variables in SQL Server instead of temporary tables.
  • Triple DES Encryption and Decryption using User provided keyOct 29, 2009. In this article, I will explain how to do a Triple DES encryption on a plain text using user provided key. I will calculate a MD5 Hash on the key provided by the user. And that key will be user to encrypt and decrypt the message.
  • DataTable in C#Nov 02, 2009. In this article, you will learn how to create an ADO.NET DataTable at run-time and use its properties and methods using C#.
  • Dealing with Percentage Size in WPFDec 03, 2009. This article demonstrates how to implement HTML Table percentage like feature in WPF using Grid panel.
  • Showing table data in hierarchical structureDec 04, 2009. In this article I am going to show how we can have table data in a tree view format.
  • Using the Data Form Wizard in ADO.NETDec 17, 2009. In this article I will explain about using the Data Form Wizard in ADO.NET.
  • CRUD Operations on Windows Azure table and Azure StorageJan 03, 2010. This article will give a walkthrough on how to perform a CRUD operation on Azure table.
  • 9 simple steps to run your first Azure Table ProgramJan 11, 2010. Azure has provided 4 kinds of data storages blobs, tables, queues and SQL azure. In this section we will see how to insert a simple customer record with code and name property in Azure tables.
  • Table and Column Mapping in ADO.NETJan 13, 2010. In this article I will explain about Table and Column Mapping in ADO.NET.
  • Creating a Guest Book in ASP.NET Jan 29, 2010. In this article I will explain Creating a Guest Book in ASP.NET.
  • SQL Query Optimization FAQ Part 1 (With video explanation)Feb 02, 2010. In this article we will first try to understand what is a SQL plan, how is it created and then we will move towards understanding how to read the SQL plan. As we read the SQL plan we will try to understand different operators like table scan, index seek scan, clustered scan, RID lookup etc. We will also look in to the best practices associated with clustered and non-clustered indexes and how they function internally. We will practically see how indexed views increase performance and in what scenarios we should use the same.
  • Create XML from DataBaseFeb 03, 2010. In this article we will create a xml from a database table.
  • The table web control in ASP.NET Feb 03, 2010. In this article I will explain about creating the table web control in ASP.NET.
  • Creating a table programmatically in ASP.NET Feb 04, 2010. In this article I will explain creating a table programmatically in ASP.NET.
  • How to get list of Tables in MS Access using C# codeFeb 10, 2010. In this article you will learn how to get list of Tables in MS Access using C# code.
  • Crystal Reports Optional Table Linking and the Importance of OrderFeb 22, 2010. In this article you will learn how to use Crystal Reports Optional Table Linking and the Importance of Order.

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