This is the first post of the series that have the goal to help Telerik OpenAccess ORM users enhance their experience in Linq against OpenAccess persistent objects. The two areas where performance enhancement can be taken advantage of are reusing a Linq query from the query cache and altering the query in a way where bigger portions of it are executed on the server. Today we will share with you a tip about the first one. When a Linq query is requested for execution, the query goes through a step of compilation – where the Linq query expression tree...

Closely monitoring the customer feedback on our web testing tools, I noticed that various issues have actually been caused by outdated versions of the RadControls used along with the most recent testing tools versions. Please note that we highly recommend using the versions of RadControls and the testing tools from the exact same release. Let me explain why. I completely understand why customers do not always upgrade their applications with the latest RadControls (at least not immediately). “If it works, do not touch it” is a common principle. Of course that’s a matter of choice. However, as a ...

One of the main jobs that the ORM software should handle is communicating with the database server and generating SQL statements for reading and writing data. Undoubtedly, the performance of each application developed by using an ORM tool depends on the generated SQL. It is a responsibility of the ORM software to optimize each statement and avoid unnecessary queries. So, when you are facing a difficult choice of an O/R Mapper, it is always meaningful to see and compare how your data is treated by different products. However, not all database engines are distributed with additional profiling software for observing...

    For a while now, we've been thinking about trying to distinguish between the concept of a QSF (Quick Start Framework) and a Demo. As you know, we call our Demos a QSF, because people can use it to get started with our controls by simply reviewing the code of the example. However, this does not hold true for Telerik Reporting, where the code is auto-generated by the report designer, and thus it does not really help in learning the product. So we decided - why not show how the reports are made instead and leave the designer to take care of the...

If a table or a view is mapped where the user does not have the rights to change data, it is not helpful that the exception is thrown during commit. Sometimes it is hard to find the place where the write access is done. Those exceptions can now be enforced to be thrown during the write operation itself. The attribute can be set at class level but the wizard does not contain it. In the Q2 release you have to do it by hand, the Q2 Sp1 will contain the UI. The settings on class level are: "readwrite": The default, everything is...