定制_StoreMixin为dGrid没有做它应该做的

Question

我有以下的mixin在JS /部件/ LoadAllStoreMixin.js声明：

define([ 'dojo/_base/declare', 'dgrid/_StoreMixin' ], function(declare, 
     _StoreMixin) { 
    return declare(_StoreMixin, { 
     // summary: 
     // dgrid mixin which implements the refresh method to 
     // always perform a single query with no start or count 
     // specified, to retrieve all relevant results at once. 
     // Appropriate for grids using memory stores with small 
     // result set sizes. 

     refresh : function() { 
      var self = this; 

      // First defer to List#refresh to clear the grid's 
      // previous content 
      this.inherited(arguments); 

      if (!this._renderedCollection) { 
       return; 
      } 

      return this._trackError(function() { 
       var queryResults = self._renderedCollection.fetch(); 
       queryResults.totalLength.then(function(total) { 
        // Record total so it can be retrieved later via 
        // get('total') 
        self._total = total; 
       }); 
       return self.renderQueryResults(queryResults); 
      }); 
     }, 

     renderArray : function() { 
      var rows = this.inherited(arguments); 

      // Clear _lastCollection which is ordinarily only used for 
      // store-less grids 
      this._lastCollection = null; 

      return rows; 
     } 
    }); 
}); 

这是写在http://dgrid.io/tutorials/0.4/single_query/允许的OnDemandList相同的部件加载一切，而不是只有minRowsPerPage记录。它被称为是这样的：

var gridDataString = dom.byId("connectedEnvironmentsAndLevelsGridData").innerHTML; 
eval("var connectedEnvironmentsAndLevelsGridJsonData=" + gridDataString); 
var connectedEnvironmentsAndLevelsStore = new Memory( 
     { data: connectedEnvironmentsAndLevelsGridJsonData } 
    ); 
var SelectionGrid = declare([ Grid, LoadAllStoreMixin, Selection, Keyboard, DijitRegistry]); 
connectedEnvironmentsAndLevelsGrid = new SelectionGrid({ 
    store : connectedEnvironmentsAndLevelsStore, 
    selectionMode : "toggle", 
    columns : connectedEnvironmentsAndLevelsGridHeader, 
    allowSelectAll : true, 
    allowSelect: function(row) { 
     // disable the grid's rows basing on the phase compatibility 
     // if true, the row selection is enabled, otherwise disabled 
     return checkPhaseCompatibility(row); 
    } 
}, "connectedEnvironmentsAndLevelsGrid"); 
// Grid is an OnDemandGrid, not a normal grid. 

它被正确加载（所以有与define([], function(){});样板没有问题），但由于某些原因，它在第一if的refresh()返回，所以它不会做什么它应该。我不知道为什么这会失败。我是否需要编写更多的代码，而不仅仅是refresh()和renderArray()函数？

Answer 1

您使用的是dgrid 0.4版本的示例，我希望您也使用了相同版本的api。

在0.4版本中，那里的store财产已被更改为collection

connectedEnvironmentsAndLevelsGrid = new SelectionGrid({ 
    collection : connectedEnvironmentsAndLevelsStore, 
    selectionMode : "toggle", 
    columns : connectedEnvironmentsAndLevelsGridHeader, 
    allowSelectAll : true, 
    allowSelect: function(row) { 
     // disable the grid's rows basing on the phase compatibility 
     // if true, the row selection is enabled, otherwise disabled 
     return checkPhaseCompatibility(row); 
    } 
}, "connectedEnvironmentsAndLevelsGrid"); 

更新：如果您正在使用0.3version，例如在日文章将无法正常工作，因为没有_renderCollection财产_StoreMixin 0.3版。此外，其他属性也会丢失，如正在此扩展中使用的“_total”。

如果您可以让我们知道您正在努力实现的目标，那么我们可以提供替代解决方案。