Tutorials & Tips

Looking for free skins to enhance your DotNetNuke website, then visit XD Design, register, login and download some cool skins and containers to make your site look great and learn how to code your skins. You can even download videos to help you learn a little faster. Nina Meiers, core team member, with over 100,000 downloads of skins and containers is an active participant in the DotNetNuke environment.Inter esting Blogs and regular site updating make this website one of the most active DotNetNuke resources with over 23,000 subscribers enjoying access to free skins,containers, videos & articles, help files and a forum to answer your questions about DotNetNuke.Also, Australian Localisation files for many modules, now available....
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Passing parameters from one page to another page is a very common task in Web development. Specially when you develop a project & redirects or navigates from one ASP.NET Web page to another, you will frequently want to pass information from the source page to the target page . In this post, I will show you some ways of transferring data/parameters/values between one page to another page which is also termed as State Management. The pages I created to show you the example is really simple which consists of a text field and a button in the first page named as page1 and a blank second page named as page2. According to the characteristics of aspx page lifecycle, web form do not retain their value after a page is displayed. To resolve this problem, ASP.NET provides the following ways to retain variables between pages:...
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User controls are one of ASP.NET methods to increase reusability of code, implement encapsulation and reduce maintenance. This tutorial explains how to create and use web user controls in ASP.NET with two complete example projects.

This tutorial explains some common scenarios when using FormView control in ASP.NET. FormView Control is introduced with ASP.NET 2.0. It is often used in master/details scenario with GridView, DataList or Repeater control.

In the following approach, we're going to use a ListView, DataPager and an ObjectDataSource to achieve this. Equally one can use a DataView and simply use it with an ObjectDataSource - I personally prefer the ListView, simply because I feel its a more flexible control. ...
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All you need to do is Create a ASPX page, that ASPX page will have a content type of image/jpeg, then within the code-behind file of that asp page we will be using system.drawing namespace to create a dynamic image.

In many forums i found this problem that's why i decide to write a post on populating a Dropdown List based on another Dropdown List. Here i will try to show how we can bind sql server data with a Dropdown List as well as after selection populate other Dropdown List. To describe this situation here i will use a very common scenario like country & its regions....
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The code sample demonstrates how you can use the built-in ASP.NET classes to generate a graphical representation of a single line of text. The example uses three parameters: (1) the text (2) font size (3) font color The generated graphic is a 256 color GIF image with transparency. This example includes a palette hack for forcing a transparent background on the GIF image....
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Most of our project we have to develop a module to upload a file. Its a common scenario for all developers. In classic ASP it was tedious but in ASP.NET we found a nice control to upload/store a file into the web server. The new control in ASP.NET 2.0 is which capable to do everything except few limitations like filtering. So in this article i want to describe how we can upload different type of file as well as effective filtering....
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Before you continue to write your own aspx file, check your directory write permission. I have used Northwind sample database. We will write some of data from Employees table to XML file.

An easy intro to custom server controls development, including building of derived controls, composite controls and custom rendered controls. On this way developer increases reusability, reduce repetitive code and ease maintenance.

The Microsoft .NET Framework 4 coming up with many new features for enabling developers to create applications faster than ever and fully compatible with the older versions of .NET Framework. Some of the New Features in the .NET Framework Version 4.0 are as follows: # Improved Security # Parallel Computing # Visual Basic and C# languages innovations # Performance and Diagnostics # Dynamic Language Run-time # In-Process Side-by-Side Execution # Interoperability # Profiling # Garbage Collection # Exceptions Handling ...
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For data driven web application most of the times we did this job. There are lot of way to handle this issue. Here i am trying to show you few process that how we can handle it. To describe this problem here i am using datatable instead of database since anyone can replace my code easily by his own data reader block. Let we have a requirement that a page contains list of suppliers. Below the supplier list client wants to add a link to add more suppliers like:...
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In this regular expression we are going to find out All Words. A word is a unit (member) of language that represents a concept which can be expressively communicated with meaning. A word consists of one or more morphemes which are linked more or less tightly together, and has a phonetic value....
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In this tutorial i will discuss how we can manage DataTable object on the fly using Asp.net C#. There were a lot of scenario where we need to dynamically create a DataTable, modify, sorting & paging. Asp.net gives us the built in System.Data namespace to programatically manage tabular data in runtime. Note that the DataTable can be bound to any data Web control just like a DataSet or DataReader as a datasource. When binding a DataTable to a data Web control, in actuality, the default DataTable is is used as a datasource to that control like GridView, Repeater, Dropdown List etc....
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Data is always the vital component in an Ajax based application. In fact, an application can be judged on its ability to deal with data manipulation as fast as it can while providing an easy interaction with its users. But aside from interaction and functionality, data security is also considered as well. Ajax has been in trouble a lot of times because of its inability to provide secure functions for its developers. Although strict coding and use of frameworks that improves security, securing the client side programming technique is still a challenge. But Ajax is still considered a remarkable programming technique because of its ability to deal with data online. The type...
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In this tutorial, we will try to validate some data coming from a form input. While using this sample code will check the date is true and in correct format. We will compare the date within a culture date format. Code can do two jobs for us : date is valid and date is in correct format. ...
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In this source code we will look at anyother new focus on ASP.NET. We could write binay files using BinaryWriter class. Let's see it on a sample code. .

Tracking events based on date is one of the most common requirements in our daily lives. Event calendar is one of the most popular solution where user can easily track his/her or agents or subordinates daily most important activies. Most of the free components probably can't implement your demand. In asp.net you can use calendar control to fullfill custom demands. But i am trying to develop a calendar without using calendar control. To do this i choose DataList because here i can define column no & repeat direction which make me interested. I want to produce my output like below:...
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In this source code we will look at how to read an XML data source and how to put it on our ASP.NET page. For this example you can use a sample XML file putting same folder with our source code. .