解决了 this.flexGrid.itemFormatter = function(
panel: any,
r: any,
c: any,
cell: any
) {
if (panel.cellType === CellType.ColumnHeader) {
cell.innerHTML = 'header \n aaa';
cell.innerText = 'header \n aaa';
}
};
this.flexGrid.columnHeaders.rows.defaultSize = 40;
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