This example shows how to disable button based on value from current row in IG (in this example based on value of column JOB).
It's important to add static ID to the button (in this example it's btnSubmit).
Put the following code into Dynamic Action Selection Change [Interactive Grid], Execute JavaScript Code:
```js
var vModel = this.data.model;
var vRecord = this.data.selectedRecords[0];
if(vRecord){
vColValue = vModel.getValue(vRecord, 'JOB');
if(vColValue=='MANAGER'){
apex.item('btnSubmit').disable();
}else{
apex.item('btnSubmit').enable();
}
}
```
Tested in APEX 19.1.0.00.15