重新加載不能用於jqgrid

Question

以下代碼不會重新加載網格。

$("#myjqgrid").trigger('reloadGrid'); 

如果我理解正確，它應該做一個ajax調用並重新加載網格，即使沒有數據更改。

HTML

<table id="myjqgrid"></table> 
<div id="Pager"></div> 

JSON

{ 
    "colModel": [ 
     { 
      "name": "ID", 
      "label": "ID", 
      "width": 60, 
      "align": "left", 
      "jsonmap": "cells.0.value", 
      "sortable": true  
     }, 
     { 
      "name": "FirstName", 
      "label": "FirstName", 
      "width": 100, 
      "align": "left", 
      "jsonmap": "cells.1.value", 
      "sortable": false  
     }, 
     { 
      "name": "LastName", 
      "label": "LastName", 
      "width": 100, 
      "align": "left", 
      "jsonmap": "cells.2.value", 
      "sortable": false  
     } 
    ], 
    "colNames": [ 
     "ID", 
     "FirstName", 
     "LastName" 
    ], 
    "mypage": { 
     "outerwrapper": { 
      "page":"1", 
      "total":"1", 
      "records":"20", 
      "innerwrapper": { 
       "rows":[ 
        { 
         "id":"1", 
         "cells": 
         [    
          { 
           "value":"12345", 
           "label": "ID"      
          }, 
          { 
           "value":"David", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Smith", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"2", 
         "cells": 
         [    
          { 
           "value":"37546", 
           "label": "ID"      
          }, 
          { 
           "value":"Willy", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Peacock", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"3", 
         "cells": 
         [    
          { 
           "value":"62345", 
           "label": "ID"      
          }, 
          { 
           "value":"Kim", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Holmes", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"4", 
         "cells": 
         [    
          { 
           "value":"186034", 
           "label": "ID"      
          }, 
          { 
           "value":"Andy", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Wills", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"5", 
         "cells": 
         [    
          { 
           "value":"67345", 
           "label": "ID"      
          }, 
          { 
           "value":"Paul", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Lawrence", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"6", 
         "cells": 
         [    
          { 
           "value":"12906", 
           "label": "ID"      
          }, 
          { 
           "value":"Andy", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Charlery", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"7", 
         "cells": 
         [    
          { 
           "value":"564565", 
           "label": "ID"      
          }, 
          { 
           "value":"Bets", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Josilyn", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"8", 
         "cells": 
         [    
          { 
           "value":"34345", 
           "label": "ID"      
          }, 
          { 
           "value":"Pink", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Floyd", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"9", 
         "cells": 
         [    
          { 
           "value":"3429", 
           "label": "ID"      
          }, 
          { 
           "value":"Rose", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Ben", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"10", 
         "cells": 
         [    
          { 
           "value":"6668", 
           "label": "ID"      
          }, 
          { 
           "value":"Amy", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Wills", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"11", 
         "cells": 
         [    
          { 
           "value":"22786", 
           "label": "ID"      
          }, 
          { 
           "value":"Zarine", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Khan", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"12", 
         "cells": 
         [    
          { 
           "value":"56444", 
           "label": "ID"      
          }, 
          { 
           "value":"Dolly", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Mathews", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"13", 
         "cells": 
         [    
          { 
           "value":"99453", 
           "label": "ID"      
          }, 
          { 
           "value":"Ginger", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Wills", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"14", 
         "cells": 
         [    
          { 
           "value":"1234", 
           "label": "ID"      
          }, 
          { 
           "value":"Fabrice", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Papa", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"15", 
         "cells": 
         [    
          { 
           "value":"45000", 
           "label": "ID"      
          }, 
          { 
           "value":"Helen", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Kites", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"16", 
         "cells": 
         [    
          { 
           "value":"1255", 
           "label": "ID"      
          }, 
          { 
           "value":"Barbara", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Dorris", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"17", 
         "cells": 
         [    
          { 
           "value":"5555", 
           "label": "ID"      
          }, 
          { 
           "value":"Eugene", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Mark", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"18", 
         "cells": 
         [    
          { 
           "value":"1867", 
           "label": "ID"      
          }, 
          { 
           "value":"Harry", 
           "label": "FirstName"  
          }, 
          {       
           "value":"King", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"19", 
         "cells": 
         [    
          { 
           "value":"45888", 
           "label": "ID"      
          }, 
          { 
           "value":"Lorraine", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Williams", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"20", 
         "cells": 
         [    
          { 
           "value":"4567777", 
           "label": "ID"      
          }, 
          { 
           "value":"Mark", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Sheppard", 
           "label": "LastName"       
          }                      
         ]  
        }, 
        { 
         "id":"21", 
         "cells": 
         [    
          { 
           "value":"7777", 
           "label": "ID"      
          }, 
          { 
           "value":"Davis", 
           "label": "FirstName"  
          }, 
          {       
           "value":"Sheppard", 
           "label": "LastName"       
          }                      
         ]  
        } 
       ] 
      } 
     } 
    } 
} 

jqGrid的定義

$(document).ready(function() { 
    $.ajax({ 
     type: "GET", 
     url: "myjqgrid.json", 
     data: "", 
     dataType: "json", 
     success: function(response){ 
      var columnData = response.mypage.outerwrapper, 
       columnNames = response.colNames, 
       columnModel = response.colModel; 

      $("#myjqgrid").jqGrid({ 
       datatype: 'jsonstring', 
       datastr: columnData,     
       colNames: columnNames, 
       colModel: columnModel, 
       jsonReader: { 
        root: "innerwrapper.rows",    
        repeatitems: false 
       }, 
       gridview: true, 
       pager: "#Pager", 
       rowNum: 21, 
       rowList: [21], 
       viewrecords: true,    
       recordpos: 'left', 
       multiboxonly: true, 
       multiselect: true, 
       sortname: 'ID', 
       sortorder: "desc", 
       sorttype: "text", 
       sortable: true, 
       caption: "<h2>MY JQGRID</h2>", 
       width: "1406",  
       height: "100%", 
       scrolloffset: 0,  
       loadonce: true,  
       cache: true, 
       loadComplete: function(data){ 

       } 
      }); 
      $("#myjqgrid").jqGrid('navGrid','#Pager', {add:false, edit:false, del:false, position: 'right'}); 
      $("#myjqgrid").jqGrid('gridResize',{minWidth:800,maxWidth:1405,minHeight:350,maxHeight:680}); 
      $("#myjqgrid").trigger('reloadGrid'); 
     } 
    }); 
}); 

Answer 1

在我看來，你有隻是loadonce: true的問題，在第一次加載數據後將datatype更改爲「本地」。所以數據的分頁，排序和過濾在本地工作。

如果你看看什麼是分頁，排序和過濾，你會發現它更像是改變jqGrid的一些參數，並重新加載本地的網格。因此，分頁，排序和過濾只能在本地進行，因爲網格的重新加載是在本地進行的。

如果您需要從服務器刷新電網的數據，你只需要重置datatype到它的初始值（「JSON」或「XML」），然後重新加載網格。

有關代碼示例，請參見here和here。