Hi Toan,
Greetings from Syncfusion support.
Based on your shared code example we can understand you are using reactive forms in Dialog mode editing using editTemplate. We have prepared a simple sample based on your shared code but we are unable to replicate the issue at our end. Please refer the below sample for your reference.
If you still faced the issue, could you please share the below details, which will be helpful for us to validate further about issue.
- Share the screenshot or video demo of the issue
- Share the console error while clicking the save button if any
- If possible, please try to replicate the reported issue in the given sample or share the issue replicable sample
Regards,
Manivel