Set the value of a data column, given a row id. Row id's are populated within a tree view row object once that row has been inserted into the tree view.
The row id.
The 0-based data column index.
The new value.
This widget to aid method chaining.
See Implementation
Set the value of a data column, given a row id. Row id's are populated within a tree view row object once that row has been inserted into the tree view.