Recently I’ve been asked by friend of mine, how to generate string consisting of 50 commas. I came up with these three code snippets:

I think, that it is a common practice to store information about creation and modification date of entities. However keeping appropriate columns up to date manually is error prone. We must remember that every time we modify entity, we also have to change its modification date. Fortunately thanks to event listeners, NHibernate can do all of this boring stuff for us. Let’s start from creating class which implements two interfaces:

Extjs doesn’t provide us with any build-in mechanism for flipping text vertically in grid’s header. Fortunately we can achieve this effect by using a mixture of CSS rules and some javascript code. In order to make code more reusable, I’ll write it as a plugin for grid. Let’s start from creating CSS rules responsible for text rotation

Extjs framework provides us with two helper classes responsible for performing drag-drop operation:

Recently in the company I work for, we’ve been trying to improve Javascript code quality. After hooking up JSlint into our build script, it turned out that the most common issue with our code is missing semicolon at the end of statements. Fixing all warnings manually would be very boring task, that is why I started searching for alternative solution. Fortunatelly once again, WebStorm came for the rescue. As you probably know WebStorm has it’s own code inspection tool which indicates problems with code. However except that, this tool can also fix these problems automatically. Here is a little demonstration. Let us start with simple code.

Writing mappings for models in large application is quite boring task. Fortunatelly, Fluent NHibernate provides possibility for automatic mapping creation - so called automappings.

I’ve recently been asked to create ComboBox with custom styled drop-down list. Colors of items of drop-dow list should be picked based on values of record bounded to given item. After reading some post on Extjs forum, I decided to overwrite default template of drop-down list.

Today just quick tip about StringBuilder I used to remove last character(s) from StringBuilder using Remove method.