jqgrid重新設置subGridOptions，根據條件重新設置屬性
$project_config_index_grid.jqGrid('setGridParam', {
search:true,
postData:obj,
page:1,
subGridOptions:{
plusicon: "icon-plus",
minusicon: "icon-minus",
expandOnLoad: true,
selectOnExpand: false,
reloadOnExpand: false
},
}).trigger("reloadGrid");
添加到setGridParam的花括號裏邊