spans

Optional. Describes the configuration of cols/rows spans

spans?: object[];

Parameters:

Each object in the spans array contains the following properties:

row	(string|number) mandatory, the id of a row
column	(string|number) mandatory, the id of a column
rowspan	(number) optional, the number of rows in a span
colspan	(number) optional, the number of columns in a span
text	(string|number) optional, the text in a spanned row/column
css	(string) optional, the name of the CSS class that will be applied to a span

Example

const treegrid = new dhx.TreeGrid("treegrid_container", {
    columns: [
        // columns config
    ],
    spans: [
        {row:"0", column:"a", rowspan:5 },
        {row:"0", column:"b", rowspan:9, text:"<h2>Some content here</h2>"},
        {row:"0", column:"c", colspan:2, text:"Some content"},
        {row:"10", column:"a", colspan:4, text:"Some header", css:"myCustomColspan"}
    ],
    data: dataset
});

Related sample: TreeGrid. Span cells