Dojo EnhancedGrid可编辑的问题

时间:2010-12-14 03:24:21

标签: javascript dojox.grid dojo

我在使dojo EnhancedGrid可编辑方面遇到问题。 目前,我可以双击网格单元格,我可以更改值,但是当我再次按Enter键或尝试离开单元格时(即将新值保存到网格中),我收到“在ItemFileWriteStore中断言失败”我的萤火虫中的错误。

以下是我的源代码:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
    <head>
    <style type="text/css">
        body, html { font-family:helvetica,arial,sans-serif; font-size:90%; }
    </style>
    <link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/dojo/1.5/dijit/themes/claro/claro.css" />
    <style type="text/css">
        @import "http://ajax.googleapis.com/ajax/libs/dojo/1.5/dojox/grid/resources/Grid.css";
        @import "http://ajax.googleapis.com/ajax/libs/dojo/1.5/dojox/grid/resources/claroGrid.css";
        .dojoxGrid table { margin: 0; }
    </style>
    <script src="http://ajax.googleapis.com/ajax/libs/dojo/1.5/dojo/dojo.xd.js" djConfig="parseOnLoad: true">
    </script>

    <script type="text/javascript">
        dojo.require("dojox.grid.EnhancedGrid");
        dojo.require("dojo.data.ItemFileWriteStore");
        dojo.require("dojox.grid.cells._base");

        dojo.addOnLoad(function() {

            var layoutabc = 
            [[
                {
                    field: "title",
                    name: "TitleofMovie",
                    width: "300px",
                    editable: true
                },
                {
                    field: "year",
                    name: "Year",
                    width: "200px",
                    editable: true
                },
                {
                    field: "producer",
                    name: "Producer",
                    width: "auto",
                    editable: true,
                    type: dojox.grid.cells.Cell
                }
            ]];


            var mystore = new dojo.data.ItemFileWriteStore({
                url: "movies.json"
            });

            // create a new grid:
            var grid = new dojox.grid.EnhancedGrid(
                {
                    query: {},
                    store: mystore,
                    structure: layoutabc
                },
                document.createElement("div")
            );
            dojo.byId("gridDiv").appendChild(grid.domNode);

            grid.startup();
        });
    </script>
</head>

<body class="claro">
    <div id="gridDiv" style="width: 800px; height: 400px;">
    </div>
</body>

这是我的movies.json的内容(数据的内容很奇怪,我知道):

{
    items: 
    [
        {
            title: "Africa",
            year: "continent",
            producer: "Katia Lund"
        },
        {
            title: "Kenya",
            year: "country",
            producer: "Christine Jeffs"
        },
        {
            title: "Mombasa",
            year: "city",
            producer: "Ridley Scott"
        }
    ]
}

2 个答案:

答案 0 :(得分:1)

问题解决了。事实证明,我需要为EnhancedGrid对象定义“plugins”属性,即使它只是一个空对象。一旦定义它就可以正常工作。

答案 1 :(得分:0)

我认为问题在于您的商店不包含任何标识符,因此当网格尝试写入商店时,它无法知道应该写入哪个条目。

我首先要编辑movies.json的响应,也许是这样的:

{
    identifier:"id",
    items: 
    [
        {
            id:1
            title: "Africa",
            year: "continent",
            producer: "Katia Lund"
        },
        {
            id:2
            title: "Kenya",
            year: "country",
            producer: "Christine Jeffs"
        },
        {
            id:3
            title: "Mombasa",
            year: "city",
            producer: "Ridley Scott"
        }
    ]
}

请注意,您不必在布局列表中包含id字段,无论如何都可以访问网格。此外,正如标识符所暗示的那样,它必须是商店中每个商品的唯一值,否则将无法初始化。