Wijmo's Angular datagrid, FlexGrid, allows users to merge data cells by matching content through the allowMerging property. Merge header cells, create custom cell merging rules, and set restrictions on how FlexGrid merges cells.
When using multiple header rows, FlexGrid allows you to merge header cells. Group sub-headers in the column header row and have them span multiple rows in the Angular datagrid.
By default, cell merging in FlexGrid merges cells that have the same content, regardless of the content in neighboring cells. Restrict this, for example, by creating an Angular custom merging manager that only merges cells in the datagrid with matching content to neighboring cell content.