Question

我在js / widgets / LoadAllStoreMixin.js中声明了以下mixin：

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;
        }
    });
});

这与http://dgrid.io/tutorials/0.4/single_query/中编写的窗口小部件相同，允许OnDemandList加载所有内容，而不仅仅是minRowsPerPage条记录。它被称为：

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.

它已正确加载（因此define([], function(){});样板文件没有问题），但出于某种原因，它会在第一个refresh()的{{1}}中返回，因此它没有做它应该做的事情。我不知道为什么会失败。我是否需要编写代码而不仅仅是if和refresh()函数？

Answer 1

您正在使用dgrid 0.4版本的示例，我希望您也使用相同版本的API。

在0.4版本中，store属性已更改为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：如果您使用的是0.3version，则帖子中的示例将无效，因为0.3版本的_renderCollection中没有_StoreMixin属性。此外，还缺少其他属性，如＆＃39; _total`，正在此扩展中使用。

如果你能告诉我们你想要实现的目标，那么我们可以提供替代解决方案。

自定义_StoreMixin for dGrid没有做它应该做的事情

1 个答案: