Telerik blogs

Release

The AI-Forward Telerik & Kendo UI 2025 Q4 Release Is Here

by Iva Borisova November 19, 2025

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  • Release

    RadComboBox for ASP.NET AJAX Q1 Beta: Automatic server-side Load On Demand

    If you have been using RadComboBox frequently in your projects, you have probably written the following or very similar code many times: protected void RadComboBox1_ItemsRequested(object sender, RadComboBoxItemsRequestedEventArgs e) { SqlDataAdapter adapter = new SqlDataAdapter( "SELECT * from Customers WHERE CompanyName LIKE @text + '%'", ConfigurationManager.ConnectionStrings["NorthwindConnectionString"] .ConnectionString); adapter.SelectCommand.Parameters.AddWithValue("@text", e.Text); DataTable data = new DataTable(); adapter.Fill(data); int itemOffset = e.NumberOfItems; int endOffset = Math.Min(itemOffset + ItemsPerRequest, data.Rows.Count); e.EndOfItems = endOffset ==...
    by Iana Tsolova
    February 16, 2010 3 min read
  • Release

    Telerik RadControls for Silverlight - the concept of performance with facts and examples

      We have been asked many times about the performance of our RadControls for Silverlight. We completely understand that “performance” is a key evaluation factor that makes users decide whether to go with a certain product or not. We also know that it is not only the fast performance that turns you, it is also a combination of several key factors, like Feature-set, Slick UI, Better User Experience, Rich API, etc. We have always tried to deliver all these in the best way so that as a result our controls keep on performing extremely fast and at the same time...
    by Nikolay Atanasov
    February 15, 2010 1 min read
  • Release

    Q1 release of RadControls for ASP.NET AJAX will require .NET 3.5 Service Pack 1

    Starting with the Q1 2010 release we’ll be building against .NET 3.5 SP1. This is a new requirement and older releases are still compatible with .NET 3.5 RTM. There is no change in the requirements for the .NET 2.0 builds. Generally speaking, there is no reason why you shouldn’t install .NET 3.5 SP1 on your servers and workstations since this is the current official version of the framework. The reason for this requirement is that we’ll start shipping official .NET 4.0 builds of RadControls for ASP.NET AJAX when VS 2010/.NET 4 RTM comes out. The service pack is a prerequisite for using the 4.0...
    by Iana Tsolova
    February 12, 2010 1 min read
  • Release

    Expression Blend for WinForms? We are almost there!

    As Q1 2010 is approaching we thought it would be a good idea to tell you where we are currently with our new Visual Style Builder (VSB) for Windows Forms. After several months of hard work we are almost done with an application, which may be easily described as Expression Blend, but for Windows Forms. The most important aspect of the new VSB is that it will decrease the amount of time needed to create or tweak themes from days to hours, and even minutes! We have considerably simplified the work flow to allow you to focus on more important things,...
    by Nikolay Diyanov
    February 03, 2010 3 min read
  • Release

    JustCode. Retrospective of the last 2+ months.

    Here's a short list of what we've managed to achieve during the last 2+ months since we released JustCode in November: We’ve fixed a lot of C# / VB.NET and JavaScript "Good Code Red" issues. "Good Code Red" issues occur when errors are reported by JustCode for code that actually compiles fine. We treat these types of issues with a very high priority as it's very annoying when errors and warnings are reported throughout the solution for code that works perfectly fine. If you still experience such problems, please report them to us and we'll fix them for the RC. You...
    by Hristo Kosev
    January 29, 2010 4 min read
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