grid column type - ron[=c0+c1]

hello,

it’s about use calc column. i set column type of third-column(c2) with ron[=c0+c1].
it’s ok when value of c2 is null or “”
but can’t see calculated value when c2 has value.

i think it’s allowed even if value is set already.

related code here is

dhtmlxgrid.js

_fillRow

if ((this.defVal[ii])&&((val == “”)||( typeof (val) == “undefined”))) *****
val=this.defVal[ii];

please check this

thanks.

but can’t see calculated value when c2 has value.
This is expected behavior of math cell. By default math cell displayed value which you pass from XML and recalculate it only if you modify any cell from formula. If you want math cell initially calculated you should leave it blank.