Hi Bernd,
Thanks for contacting Syncfusion support.
Query: “How can I handle the use case to filter items with the condition NOT CONTAINS or NOT ENDWITH.”
Currently we do not have support to achieve your requirement to filter the column using not operators. We have considered it as an new feature and logged the feature report for the same. Thank you for taking the time to request this feature “Need to provide support for additional filter operators” and helping us improve our product. We are always trying to make our products better and feature requests like yours are a key part of our product growth efforts. At the planning stage for every release cycle, we review all open features and identify features for implementation based on specific parameters including product vision, technological feasibility, and customer interest.
We do not have immediate plan to implement this feature and it will be included in any of our upcoming releases. Please cast your vote to make it count. So that we will prioritize the features for every release based on demands.
Please let us know if you have any concerns.
Regards,
Vignesh Natarajan