Memory leak when using GridViewComboBoxColumn

[Shulla Krous]

Hello,

I have come across a problem of memory leak when using GridViewComboBoxColumn.

I used the Memory Profiler program to ditect the problem.

I have opened  a form with a GridView control, which contains a GridViewComboBoxColumn.

Edited 5 cells of a GridViewComboBoxColumn type and took a snapshot of the memory,

The RadPropertyValue has used 11,500,000 bytes.

Edited 5 cells added of a GridViewComboBoxColumn type and took a snapshot of the memory,

The RadPropertyValue has used 42,300,000 bytes.

The attached files display the result.

After closing the form I took another snapshot which showed  that the instances where still indirectly rooted by an EventHandler.

 

This problem is causing the users to use a large amount of memory.

Dispirit for an answer.

Y. L.

[Jack]

Hello kr kr,

Thank you for contacting us.

From the first screenshot I can conclude that you are using an old version of our controls. In Q2 2010 SP1 we replaced the old RadComboBox control used in RadGridView with a new one - the RadDropDownList control. This new control is faster, supports UI virtualization and solves most of the issues that appeared in RadComboBox. I can confirm that there are no memory leaks when using our latest release and I recommend that you try it. We will also appreciate your feedback regarding our latest release.

If you have other questions, do not hesitate to contact me.

Greetings,
Jack
the Telerik team

[Shulla Krous]

Dear Jack

Thank you very much for your reply.

I am looking forward  to hear that the new RadDropDownList control, does not have any problems of memory leaks.

Greetings,
kr, kr.