Thanks for your interest in Syncfusion products.
We are able to reproduce the reported issue in the below scenario.
: When grouping a column with type “date
” and exporting the grid. The Column type is defined as “string
” in class definition and “date” in column definition. If the column has incorrect date format eg. 13-14/15
, upon exporting, the reported exception occurs.
So please ensure if the scenario in your project corresponds to the same scenario as mentioned above. If so, we suggest you to provide proper dateTime format to the corresponding column.
For your convenience, we have created a sample to export grouped grid, which can be downloaded from the below location.
Ragavee U S.