Hi Lawrence,
Please try this code
GridStyleInfo info = new GridStyleInfo();
info.CellType = "PushButton";
info.Description = "Click";
info.CellValueType = typeof(string);
gridControl1.SetCellInfo(5,3, info, Syncfusion.Styles.StyleModifyType.Override);
this.gridControl1.Refresh();
Here is a sample for implementing it
pushButton1.zip
Let me know if you need any further assistance.
Regards,
Haneef