[{"id":"b66f8b1e-cc14-4e89-9679-abd5687d283d","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"569bb90a-ea68-46c6-96f1-ab151c120714","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"5eb52f08-2d1a-4362-9ffc-4871bdc10f3f","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"341dd607-b97d-4d70-bde2-53acda6b6c95","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"05349273-414f-4208-9ea2-c4fc8f4ea2cb","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"86089f76-b778-4d52-821e-6f27de3df613","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"b81e4fd6-1fc5-43a0-a258-b6e16a5cbec6","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"8aa8ce31-43e4-438e-951f-241608435260","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"37343f41-6ec2-4c7e-b21d-2cc18d5ce1e0","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"5915e52f-64f8-4146-b8bd-81bead6324a3","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"836ba889-af9e-460d-a4cc-c24d922795f2","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"4ae14b06-bb68-4394-a210-a46b8f028346","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"d8f42066-e9dc-4411-bdcf-43b1a203370c","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"7ef86f16-b1a0-49f7-9592-612b9be02b25","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"b29c7775-a9a4-451e-a1b5-01d19ed5ca5e","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"e56f3989-8f81-46af-90fa-a4813eeb976f","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"2526c963-f170-45a8-923e-91b0712a9810","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"24575cf0-501a-44f9-8426-c40f8f4b5552","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"1a6f8d7f-acd6-42be-8c4f-f464c6218381","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"82b176fd-5cab-498c-909e-8fa7d29c38d8","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"1708b3a9-4f37-44a8-8f0e-f9a2d2e5d940","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"c9ac246e-29fb-4bc4-8231-8439795bb590","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"94f2a5c3-2539-436a-af75-23fbbd1a3957","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"d99594f4-2d40-4df4-9419-ba2ca6aa3f7f","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"fd66e72d-0f10-4f57-9807-6db26290ab2e","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"8f344863-503d-4bc3-a594-3815e7d55f5c","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"9be82601-de9d-4c18-948a-23ab6f4dd431","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"6495f3c0-b463-47e0-b08a-ca949672211e","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"b4bede08-3f08-4839-ba4a-abc7ac195bde","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"4afcdfc0-3ff5-4f2b-a223-f8fc042a5bbe","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"422062c4-fa40-4771-a86f-008efe6d86e5","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"d87e8013-86a7-4840-8d25-6f62e14eb4ac","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"a6acedfd-4043-4c64-a5d1-aec3326df9e7","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"dbdc0b24-06c4-48b9-8d6c-7455119dc773","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"a3856849-954a-4cfc-96a6-382e530d3638","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"4a39306b-ffa5-433d-80a3-28e41f929b72","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]}]
根据数据的不同,加载非常大的文件可能会花费一些时间和/或达到浏览器功能的极限。所以,每当你试图加载一个大文件的数据或公式嵌入,建议使用增量加载特性来缩短数据处理时间和优化装载过程。
增量加载特性首先加载带有一些数据的活动表单,然后在后台逐段加载其余数据,如公式、单元格值和定制名称。当使用fromJSON函数加载数据时,可以在选项中将 incrementalLoading 设置为true。您还可以使用incrementalLoading中的回调函数来获取加载状态,或者设置加载完成后要执行的下一个动作。还可以通过将 doNotRecalculateAfterLoad 设置为false来指定在加载数据之后是否重新计算单元格值。
每当在数据加载过程中执行任何UI事件时,SpreadJS首先处理该事件,然后在表单中加载其余的数据。
注意: 每当在数据加载过程中执行任何UI事件时,SpreadJS首先处理该事件,然后在表单中加载其余的数据。 下面的示例递增地在表单中加载一个JSON文件。
这段代码展示了如何使用增量加载加载JSON文件。
var incrementalEle = document.getElementById("incremental");
var loadingStatus = document.getElementById("loadingStatus");
function fromJSON(json) {
if (incrementalEle.checked) {
spread.fromJSON(json, {
incrementalLoading: {
loading: function (progress) {
progress = progress * 100;
document.getElementById("statusBarDiv").innerText = "Loading: " + progress.toFixed(2) + "%";
loadingStatus.value = progress;
},
loaded: function () {
document.getElementById("statusBarDiv").innerText = "Finish";
}
}
});
} else {
spread.fromJSON(json);
}