As documented in the Validation triggers section of the Grid Validation topic, validation is not triggered for cells/rows that are not edited via user input or via the editing API.

Having this in mind, the sequence that you are describing can still be achieved by implementing additional logic in this direction. I modified the previous sample to demonstrate a possible approach when row editing is allowed and by leveraging the grid’s updateRow method.

The initial invalid state could be “triggered” in the ngAfterViewInit hook:

  ngAfterViewInit(): void {
    this.data.forEach((entry) => {
      requestAnimationFrame(() => {
        this.grid.updateRow(entry, entry[this.grid.primaryKey]);
      });
    });
  }

And for the described row editing scenario in order to retrigger validation for the other invalid records that no longer should have errors after the particular row edit is finished, the rowEditDone event could be leveraged, for example:

 public rowEditDone(event) {
    let recValidationState: IRecordValidationState[] =
      this.grid.validation.getInvalid();
    recValidationState.forEach((rv) => {
      rv.fields.forEach((f) => {
        if (f.errors && f.errors.duplicateValue) {
          let rowData = this.grid.getRowData(rv.key);
          requestAnimationFrame(() => {
            this.grid.updateRow(rowData, rowData[this.grid.primaryKey]);
          });
        }
      });
    });
  }

Please, feel free to further modify this solution to fit your requirements. I hope it helps.

Best regards,
Bozhidara Pachilova
Associate Software Developer