Hi Roberto,
Thanks for using Syncfusion products.
We have a dashboard sample which provides support for searching in the GridGroupingControl. It provides support with options for ColumnOnly and WholeTable. Please make use of the sample from the below installed location.
Sample Location
<Installation_Location>\Syncfusion\EssentialStudio\<version>\Windows\Grid.Grouping.Windows\Samples\Layout Customization\Find-Replace Demo
Note
Selecting column only will search the given text in the current column.
For more information about the find and replace, please refer to the below user guide documentation link,
UG Link
Regards,
Amal Raj U.