Hello,
I have a XamDataGrid with fields/columns A, B and C. A and B are using summary definitions each with the default "Sum"-summary calculator set. For C I defined a third summary definition with a custom summary calculator where in the EndCalculation event I'am calculating a percentage value depending on the summaries A and B. The problem is, that I only can set one field as SourceFieldName per summary definition which I set to field C for the custom summary calculator. Now the EndCalculation event is just fired on changes of cells in field C. But I need it to be fired on changes of the cells in column A and B or just on their summary changes. How can I achieve this?
We switched to refresh our summary definitions in the EditModeEnded and LostFocus event because LayoutUpdate was called to often and brought us performance issues.
Thanks for your help!
I am just checking if you require any further assistance on the matter.
Thank you for your feedback. I am glad that my suggestion is helpful. Regarding the XamCalculationManager it is not created to be a specific feature of the Row Summaries in the XamDataGrid. The xamCalculationManager control allows you to create complex formulas which can be reused among different controls :
http://help.infragistics.com/NetAdvantage/WPF/2012.2/CLR4.0/?page=xamCalculationManager_Getting_Started_with_xamCalculationManager.html
This is why the no checkbox appears in the group summaries.
Your workaround seems to work for me at the moment. Thanks for your help.
But could you check if it's a bug that there are no summaries in the group headers if you are using the calculation manager (see my second post). And if so, could you send it to your product team so that they can fix it? Otherwise using the calculation manager for summaries seems to be pretty useless.
I am just checking your progress on the issue.
If you require any further assistance please do not hesitate to ask.