Slowness sorting or resizing column width

[Chad]

Has anybody else experienced slowness when either sorting a column or resizing the width of a column?

To sort or resize a column it is taking 8 seconds, you might think many rows is the problem. But I would not say that 320 records is a lot of rows.

I'm using the Model View View Model concept and creating a custom class that is binding to the grid. Could this approach be causing the slowness?

[Vlad]

Hi Chad,

 Please verify if the grid is not inside StackPanel, ScrollViewer or Grid.Row with Auto Height. In this case the grid will be measured with infinity and the rows virtualization will be off.

Sincerely yours,
Vlad
the Telerik team

[Chad]

Perfect, the grid was in a ScrollViewer and slowness is GONE!!! However, now the height of the multiple row header is not autosizing. So to clarify the multiple row has wrap text turned on and the width of the column is reduced to force it to wrap the text to a 2nd line. I'm only concerned with this in the header row.

What is the trick to get the header row to either autosize on the height or how do I specify the height?

Thanks ...

[Chad]

I created a new post to for others to see how to change the header row height, see post "Change Header row Height when using wrap text" hopefully will have answers there.