Hi,

I am trying to implement a “ValueGetter” function in my AG Grid table. In this case I have 3 columns called “1”, “2”, “3”. In the column “Sum” I want to calculate the sum of the first 3 columns. As long as I use data loaded from a DataFrame the “ValueGetter” function works and I get the sum. However, if I edit one of the values, it seems like the table creates a str value instead of a number. Therefore, the sum results in an addtion of the strings. E.g. if “1”=5, “2”=10 and “3”=3, i get 5103 instead of 18. As I said this only happens after editing a value. I tried to define a column type and a valueformatter, unfortunately without success. I also tried to use “params.getValue” instead of params.data, but also this does not help. Any ideas how to get this work?

```
columnDefs=[
{
"field": "1",
"editable": True,
"type": "numeric",
"valueFormatter": {
"function": "d3.format('(,.1f')(params.value)"
},
},
{
"field": "2",
"editable": True,
"type": "numeric",
"valueFormatter": {
"function": "d3.format('(,.1f')(params.value)"
},
},
{
"field": "3",
"editable": True,
"type": "numeric",
"valueFormatter": {
"function": "d3.format('(,.1f')(params.value)"
},
},
{
"field": "Sum",
"valueGetter": {
"function": "params.data['1']+params.data['2']+params.data['3']);"
},
},
]
```