Something like this example i have found?
But this is javaskript dash, isn’t
valueSetter: params => {
validate(params.newValue, onSuccess, onFail);
return false;
};
validate = (newvalue, success, fail) => {
if (isValid(newValue)) {
success();
} else {
fail();
}
};
onSuccess = () => {
// do transaction update to update the cell with the new value
};
onFail = () => {
// update some meta data property that highlights the cell signalling that the value has failed to validate
};