The column being connected to DataField of DataSet.
It displays the values of field connected to fieldName or fieldIndex in column cells. And, it transfers the value entered and updated in column cell to data set again.
As the example code below, when creating the column by setting model, "type" will be "data".
var columns = [{
name: "colAddr",
type: "data",
fieldName: "fldAddr",
...
},
...
];
grid.setColumns(columns);