Tutorials & Tips

Explains how to turn an image to navigation menu with ImageMap Control. In the past, developers would break an image into multiple pieces and put it together again in a table, reassembling the pieces into one image. With the new ImageMap control, you can define images with distinct regions called hot spots which are identified using coordinates.

Tracing is a way to monitor the execution of your ASP.NET application. You can record exception details and program flow in a way that doesn't affect the program's output. In ASP.NET, there is rich support for tracing.

ASP.NET introduced new declarative expression syntax which allows you to substitute values into page at run time called Expression builders. You can make extensive use of expressions for referencing string resources for localization, connection strings and application settings from configuration file. This tutorial gives a closer look to Expression Builders and Custom Expression Builders classes.

One striking difference which every .net developer finds from win forms application development and asp.net application development is MessageBox class. You found it to be so missing especially when you worked on windows development for a while. But, you can use ASP.NET Server side code to emit proper client side Java script code when generating HTML response. Client browser will then run the emitted Java script to display message box.

This article will demonstrate how to get connected to SAP and how to call an ABAP function and pass data to and from SAP. The SAP Connector for Microsoft .NET is a programming environment that enables communication between the Microsoft .NET platform and SAP Systems. It supports SAP Remote Function Calls (RFC) and Web services, and allows you to write various applications, for example, Web form, Windows form, and console applications within Microsoft Visual Studio .NET. You can use all Common Language Runtime (CLR) programming languages such as Visual Basic .NET and C#. So without further ado, let's get to the article.

This article includes quick summary of ASP.NET and complete coverage of ASP topics like web application life cycle, application and session state variable, server control events, navigation method, code security, debugging and tracing, tracing, Master page, state management, Validation control etc.

This listing explains how to setup and use PayFlowPro SDKs to accomplish recurring billing. By using PayFlowPro all processing can be done while the user is still on your website. This article assumes you already have a merchant account setup.

In this tutorial I will teach you how to edit your information stored in a database, using ASP.NET and dreamweaver.

Learn how to create a search form for your site using ASP.NET. I also included a video tutorial.

This section provides you answers to the ASP.NET questions that might be asked to you while appearing for an Interview. This is a general tutorial on Asp.net which should help you in answering your queries on this subject.

.NET comes with great features. Anymore your do not need any additional code libraries to upload files to your web server. Microsoft.NET includes itself a file upload wizard. Now we will examined and play with this tool. I've used Visual Web Developer 2008 and ASP.NET 3.5 to create this sample application. First we need to create a new web form and place FileUpload control on page. Drop a button and name it as Upload. Also drop a label and named as lblMsg to handle any message. Our file upload control name will be inputFileUpload. But you may rename anything in this sample application.

ASP.NET 2 has got several new foucs on development. Probably gridView will be your best friend of you. The GridView control automates many of the features of the DataGrid control. You have a full control on viewing, sorting, paging and editing. This sample is only a beginner guide but I hope that you will discover many features of gridView.

This is the first of a four part series on C# 3.0. It covers type inference, also known as implicitly typed variables. It explains what type inference is, why it is useful and the performance consequences of using it. It also looks at implicitly typed arrays.

This is the second of a four part series on C# 3.0. It covers extension methods, explaining what they are, when to use them and how to write them. It then moves on to lambda expressions, explaining the syntax and showing how C# 2.0 anonymous methods can be re-written using the new syntax. It also looks at how type inference and lambda expressions work together.

This is the third of a four part series on C# 3.0. It covers new features that will help you to build data structures more easily, including object and collection initializers. It then moves on to anonymous types, which are useful in Linq, and how type equivalence works with anonymous types.

This is the final part of a series on C# 3.0. It covers Linq - Language Integrated Query. It explains what declarative programming is, how Linq fits in with this paradigm and why it is a good thing, before explaining how to write Linq queries using a variety of basic and advanced features. Finally, the architecture of Linq is examined, with some notes on DLinq and XLinq.

The user should be informed of percentage of some task completed. This article discuss about the custom user control to create a smooth, incrementing ProgressBar control. It's typical user control which you can include in any of asp.net web application. This user control is a light weight which is built using a HTML table.

ADO.NET was first introduced in version 1.0 of the .NET Framework and provided an extensive array of features to handle data either live,while connected to the database ,or when disconnected.. With the introduction of ADO.NET 2.0, you can have more features and easier programming model. Some of the newly added features include the capability to to bulk load large quantities of data from varieties of sources, to batch process updates to the database with fewer roundtrips back to the database server, to reuse the same live connection for multiple operations as well as to achieve asynchronous access to the database.

Many times in your ASP.NET applications, you need to interact with the local file system, directory structures, reading and writing to files. or performing many other tasks. The System.IO namespace in the .NET framework makes working with file system and directories very easy. However there are things you need to keep in mind that is security. When you reading, or writing a file or folders in Web application, you are actually executing on behalf of the users that being assigned to your web application and mostly it is under ASP.NET user or Network Service user. You need to make sure that the user itself has write or read access for the particular file or directory you are working on. In this article, I will list down few important classes in .NET that you need to know in order to manipulate files and folders in ASP.NET application.

In this article, I will explain about GDI+ in .NET Framework. If you haven't heard about GDI+, then GDI+ is a set of classes in .NET framework that deal with graphics. You can use GDI+ to draw custom drawing on the screen. GDI provides a layer of abstraction, hiding the differences between different video cards.