A population pyramid, also called an age structure diagram as defined by Wikipedia is a graphical illustration that shows the distribution of various age groups in a human population (typically that of a country or region of the world). It typically consists of two back-to-back bar graphs, with the population plotted on the X axis and age on the Y axis, one showing the number of males and one showing females in a particular population in five-year age. Although there are different types of population pyramids this blog post will demonstrate how to create such pyramid using the RadChart’s Horizontal Bar type....

  Sometimes we need to extend the RadTreeView’s Drag’and’Drop abilities in order to accept external data from other applications or Windows. In this post I will show you how to successfully drag and drop images from  windows desktop / windows explorer to a RadTreeView located in a running WPF Application. Imagine we want to make a tree that shows pictures and names of our favourite football teams and our favourite players in these teams. How can we achieve this ? We can first create some ViewModels: PlayerViewModel, TeamViewModel, LeagueViewModel that all inherit from BaseViewModel. The BaseViewModel will implement the INotifyPropertyChanged interface and will expose Name(string) and ImgSource(Uri) properties. Then we will create...

Since Q1 2011 and the newest release of the RadMap several changes were made to the control. Presently it is possible to specify several tile providers that will be displayed one over the other through the RadMap.Providers property. If your Map sources have tile size different from the default one (256x256) then all these sources must use the same tile size. For example if you want to have a satellite source with tile size 300x300 and a road source, the last one must use this tile size as well. If your map source uses a tile size different from the...

  Often collection data is better presented in a tabular view and better edited in a form view. Such UX approach is referred by our clients as “Popup editing in RadGridView”. With the help of the new RadDataForm and the good old RadGridView a few lines of code are needed to accomplish this.

Hello everyone! Q1 2011 has just been released and with it comes for the first time the RadTimeBar. Time Bar is a time bound DataVisualization control whose main purpose is to allow lightweight scrolling, navigation, and selection through large periods of time. To ease visualization the timebar can divide the displayed timespan in predefined periods like years, quarters, months, weeks, days, etc. While showing periods of time divided in weeks can be fun, it becomes really useful when combined with another great product that allows quick data visualization – the RadSparklines.  In addition to visualizing data, the RadTimeBar control allows you...