单行拼接 的方式

 var ids=$('#campusCardGrid').jqGrid('getGridParam','selarrrow');
					            
					            var rowData=null;
					            
					           // alert("数组="+ids);
					            var sb = new stringbuilder();
					            
					            for(var i=0;i<ids.length;i++){
					            	 
					            	rowData= jQuery("#campusCardGrid").jqGrid("getRowData",ids[i]);
						 	         // alert(JSON.stringify(rowData));
						     		
						    		 //获取数值
						    		 console.log(rowData.pid);
						    		
						    		 sb.append(rowData.pid+"-"+rowData.pidname+",");
						    		// selectIds =rowData.pid+"-"+rowData.pidname;
					            }
					            // alert("拼接="+sb.tostring());
					              basic=sb.tostring();
					          //   alert("处理后的字符串="+ basic.substring(0, basic.length - 1));
					             selectIds=basic.substring(0, basic.length - 1);