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       
(Showing Draft Content)

自定义区域模板

问题:如何利用数据绑定实现区域模板功能

背景

GcExcel 中有模板语法这个功能,通过一个模板在后端根据数据源去生成一个指定的表单,非常方便快捷。

在前端 SpreadJS,也有区域模板这一功能,但是他是一个单元格类型,且无法直接编辑与导出 Excel。

实现思路

这篇教程就来实现一个利用数据绑定实现的自定制区域模板功能。可以先看下效果。

image

首先,我们先设计上一个需要填报或者绑定的模板

image

加载完模板后,我们定义了一些数据源。

var score = [
  { class: "A班", name: "小明", cn: 88, ma: 69, en: 77 },
  { class: "A班", name: "小红", cn: 90, ma: 87, en: 80 },
  { class: "B班", name: "小张", cn: 60, ma: 68, en: 71 },
  { class: "B班", name: "小焦", cn: 95, ma: 88, en: 79 },
  { class: "C班", name: "小绿", cn: 57, ma: 66, en: 68 },
  { class: "C班", name: "小菊", cn: 79, ma: 69, en: 71 },
];

接下来的重头戏就是绑定,我们通过遍历,给将数据源一次一次地给数据源进行绑定,然后将新绑定的表单通过copyTo的接口复制到下一个区域,直至将数据源遍历完。最后再通过deleteRows将初始的模板删除。

for (var i = 0; i < score.length; i++) {
  var data = score[i];
  var source = new GC.Spread.Sheets.Bindings.CellBindingSource(data);

  sheet.setDataSource(source);

  sheet.copyTo(
    1,
    1,
    7 * (i + 1) - i,
    1,
    5,
    4,
    1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 512 | 1024
  );
}

sheet.deleteRows(1, 6);

我们也可以通过导出excel的按钮将这个表单导出。

完整版Demo可以参考论坛精华贴:利用数据绑定实现区域模板功能

作者: GrapeCity China | 审核:AlexZ | 更新时间:2023.09.24