datagrid header customizations disappear

Apr 29, 2009 at 3:42 PM
Hi

after my datagrid is loaded I add some additional controls in my datagridcolumheaders to enable filtering

All works fine but the additional controls disappear when I call some functions which have nothing to do with grid operations

Now my question: which event of the grid may be responsible for this? How can I find the source of this behaviour?

Regards
Klaus