Having read a great variety of forum and blog posts, I met a lot of misconceptions about ASP.NET that definitely made people to turn away from ASP.NET. I won't argue whether ASP.NET is better than PHP (or Ruby on Rails) or not, instead I'll try to bust those myths.

I want to proceed with telling how to deal with uploaded images with ASP.NET. I have already showed how to resize images. However, that resizing method isn't perfect. It doesn't produce images of high quality.

In the previous tutorial I showed how to handle image uploads, how to validate some things and finally how to resize images retaining their proportions. This time I'll show you how to prevent uploading of files which size exceeds the defined limit.

Annoying crash

Is image uploading different from simply file uploading? No, but when creating an image uploading functionality you usually have to perform more operation, than if you application were to receive text files only.

As you may already know, it is required to create a web service to make use of some ASP.NET AJAX Control Toolkit controls. However, you can use static methods of your pages instead, you just have to mark them with the System.Web.Services.WebMethod attribute and not set the ServicePath parameter in the ACT controls.

This story is not a debate on "ASP.NET vs PHP", but this story is about the people who develop their web applications with PHP, but pretend that they are using ASP.NET. Yes, such people do really exist. I came across their posts in the forums, where they said that or asked how to change the extension of PHP scripts to .aspx.

Creating dependant drop-down lists is a very common task, for example, when making a registration form, you usually have to add a country and a state fields, the contents of the state drop-down depends on the selected item in the country drop down field. Actually, it's not so difficult to implement that with the standard controls of ASP.NET

Although the TreeView control is a very powerful one, there are some pitfalls that you can run into when using it. One of the most popular problem is using checkboxes in TreeView. Despite the fact that you can enable checkboxes by setting ShowCheckBoxes="All" you still have to write a lot of JavaScript code to make it work properly. Here is a better solution

Everybody knows the benefits of the open source software. Of course, the main benefit is the availability of the source code and the licence that allows us to perform he modifications and to distribute the derived product. The availability of the source code makes us think that the source code should be perfect. However this is not always true.