easyUI table行上移下移 同时更新序号可使保存按新顺序

//上移
    function upBtn() {
        var selected = $(‘#caseTable‘).datagrid(‘getSelected‘);
        var index = $(‘#caseTable‘).datagrid(‘getRowIndex‘,selected);
        if(index==0){
            $.messager.alert(‘系统提示‘, ‘顶行无法上移!‘, ‘warning‘);
        } else {
            var rows = $(‘#caseTable‘).datagrid(‘getRows‘);
            var row = rows[index];
            $(‘#caseTable‘).datagrid(‘deleteRow‘, index);//删除一行
            index--;
            $(‘#caseTable‘).datagrid(‘insertRow‘, {
                index:index,
                row:row
            });
            var loadRows = $(‘#caseTable‘).datagrid(‘getRows‘);
            loadRows[index].ROWNUM_ = index + 1;
            loadRows[index + 1].ROWNUM_ = index + 2;
            $(‘#caseTable‘).datagrid(‘loadData‘,loadRows);
        }
    }
    //下移
    function downBtn() {
        var selected = $(‘#caseTable‘).datagrid(‘getSelected‘);
        var index = $(‘#caseTable‘).datagrid(‘getRowIndex‘,selected);
        var rows = $(‘#caseTable‘).datagrid(‘getRows‘);
        var rowlength=rows.length
        if(index==rowlength-1){
            $.messager.alert(‘系统提示‘, ‘底行无法下移!‘, ‘warning‘);
        }else{
            var row = rows[index];
            $(‘#caseTable‘).datagrid(‘deleteRow‘, index);//删除当前行
            index++;
            $(‘#caseTable‘).datagrid(‘insertRow‘, {
                index:index,
                row:row
            });
            var loadRows = $(‘#caseTable‘).datagrid(‘getRows‘);
            loadRows[index].ROWNUM_ = index + 1;
            loadRows[index - 1].ROWNUM_ = index;
            $(‘#caseTable‘).datagrid(‘loadData‘,loadRows);
        }
    }