Exj.js it’s very powerful framework that is based entirely on JavaScript using Ajax, DHTML and DOM scripting. Originally built as YUI extension, ext.js is getting more and more popular recently thanks to cross-browser compatibility and ability to easily implement solutions on mobile devices using Sencha Touch. To fully unleash the power of Ext.js it needs […]
When creating user interface the common situation is to handle datagrid row event in response to user action. Example of that is changing dropdown list value and refreshing row information without reloading the whole datagrid. For instance if we have a datagrid with the products containing dropdown list with the clients in each row, we […]
If you ever wanted to create your own Silverlight component, this is a good place to start. In this article I will show you how to create simple component displaying salary data on the chart. In our example the data are being stored in the application but you can easily call a web service to […]
When building database driven websites sometimes there is a need to display image gallery based on pictures stored in database. Good solution for that is to combine jQuery scripts with asp.net controls. Today I will show you how to build simple database driven gallery with auto rotating pictures. In our example the pictures will be […]
There are number of cases when you will need to calculate the distance between two addresses in your application. For example when building an social website or CRM solution. Calculating the distance between the addresses has never been so easy thanks to Google geolocation API. The API is available for free but it has the […]
Office Open XML it’s the Microsoft’s zipped-xml based standard for processing Office documents. It allows to create, amend and process MS office files using e.g. .Net platform. In this article I will show you how to replace Word template with text and images using C# based application. After creating new project we need to add […]
Ever wanted to find non empty periods of data using T-SQL? I this article I will show you how to do it. Example below shows the periods of days in which there have been at least one order. The days without orders are not being shown. This is very useful when creating advanced sales reports. […]
When storing passwords in database, it is considered a good practice to hash them first. The most common way to do that is to use MD5 or SHA hashing algorithms. Hashing passwords is more secure because after creating a hash from the user’s password theoretically there is not way to get the password back from […]
When building B2C systems the common scenario is to share the profits among the portal and the business users eg. when renting a house through you website the user pays total amount for the house, lets say 100 USD to the property owner. From that amount the owner will pay share commission to the portal’s […]
Knowing how to format text using RichTextBox control lets you build wide range of tools such as code comparers, validators, chat applications etc. In this article I will show you how to build simple code checker/ validator. We start with creating new win form application and class library that we will read our test methods […]
