One of the new features that will come with the next version of RadGridView is the new data conversion layer. In our daily work we have often got into troubles in visualizing and formatting concrete types as other types. Sometimes the data source is not compatible with the bind target. Hence, you need to create a facade that converts the data to desired type. Let’s say that you bind the grid to a source that is incompatible with the columns that you want to show, for example a GridViewCheckBoxColumn for char field instead of GridViewTextBoxColumn. How can you accomplish that? The new version of RadGridView will...

In my last post I went over how to create your own custom dictionary for RadSpell and since this control is fully integrated into our RadEditor control I wanted to discuss how to use your custom dictionary with the RadEditor, as well as how to localize the RadEditor itself. To start off we want to make sure that we can take use of our custom dictionary in the RadEditor. To do this we need to make sure that the “RadSpell” folder is located in the “App_Data” folder of our project. In the RadSpell folder we have to add all of our custom...

Customers often ask questions about how to sort the rows of a table or a crosstab by a specific column, when the column is chosen dynamically according to a certain criteria or specified directly by the end user. This can be trivially accomplished for a table, because the exact number and names of the individual columns is previously known and fixed. In most cases it is simply a matter of specifying an appropriate sorting expression to the table. On the other hand, sorting a crosstab by a specific column is not so simple to accomplish. The crosstab generates its rows and...

Task-It Series This post is part of a series of blog posts and videos about the Task-It (task management) application that I have been building with Silverlight 4 and Telerik's RadControls for Silverlight 4. For a full index of these resources, please go here. One of the posts listed in the index provides a full source download for the application, and I will be referring to that source code in this post. Providing feedback to the user In my last post I talked about using events to pass information from the RadTreeView to the RadGridView in the Tasks page in Task-It. In this post I'll talk about events that are...

The RadSpell control for ASP.NET Ajax allows you to provide your users with spellchecking in your ASP.NET Ajax applications. The control can be used to spellcheck any server or client editable element which means that any textbox, div, or iframe can be spell checked. Out of the box only three languages are supported by RadSpell; English, French and German. However, we have an offering of several languages that can be downloaded, found in this forum thread, which can be used with RadSpell. These files may be incomplete since they are not officially supported by Telerik, but overall they do provide...