SMART datagrid v.1 > Classes > ValueColumn

DataLudi.ValueColumn.mergeCallback  property

Callback function which returns the reference value of determining whether to merge cells. 

function (row:GridRow, column:Column):*;

If the value returned by this function is the same as the one returned by the prior row, it will be merged with the prior row. 

If this property is set by a valid function, mergeExpression property will be ignored. 

Defaults to null.

Getter

function mergeCallback(): Function

Setter

function setMergeCallback(value: Function)

    var col = grid.columnByName('salary');
    col.setMergeCallback(function (row, column) {
        // If it is the case of exporting this grid to the report,
        // you must refer the grid regionally as below rather than the variable beyond this callback region.
        return column.grid().getValueAt(row, column.dataIndex());
    });

Note

• If it is the case of exporting this grid to the report, as stated in the code above, you must refer the grid regionally through column parameter rather than the variable beyond this callback region. It is because when exporting the grid, it will create a new grid of copying grid information which will be the export source.

See Also

mergeExpression

mergeValueExpression

mergeValueCallback

Examples

Cell Merging