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判断是否为富文本

问题：SpreadJS如何判断单元格是否为富文本

背景

在 Excel 中，同一个单元格是允许设置不同的字体大小颜色等，而目前SpreadJS是不支持这样的方式。

另外，想要在单元格中有更多不一样的内容，例如像是一些比较复杂的公式，有一些特殊符号等。那么就可以通过我们富文本的功能来实现。

富文本，就可以参考我们学习指南进行设置。同样里面也包含了一个富文本编辑框，这边就不做过多的赘述了。

这篇文章主要聊聊导入之后的富文本，因为前面所说的这个excel特性载入后如果不用富文本编辑器去设置，那么双击之后有可能就会变成了普通的文本。

那这个时候，我们有两个方案：

1、知道这个单元格是富文本，用右键菜单唤起富文本编辑器；

2、在不知道的情况下，我们可以通过监听双击事件来判断这个单元格是否有富文本。基本思路是，结合bootstrap通过$('#subEditor').modal('show')控制富文本框的显示，通过 $('#subEditor').modal('hide')控制富文本的隐藏。

实现思路

第一个思路，我们需要先往右键菜单中添加我们对应的富文本项，也就是点击之后弹出富文本编辑器。然后注册弹出编辑器的命令。

在 execute $('#subEditor').modal('show')控制富文本框的显示，并且调用 spread.focus(false); 使工作簿失去焦点。

第二个思路就是利用事件实现，我们通过监听 CellDoubleClick 来监听双击事件。然后通过 getValue 来判断对应的值是否是富文本，如果单元格的值是非空且为富文本，那么我们再在里里面去监听弹出事件，使得表单失去焦点，进而让编辑器获取焦点。

以上就是两个关于富文本编辑器的相关思路，感兴趣的朋友可以参考该链接中的附件体验一波。

作者: GrapeCity China | 审核：AlexZ | 更新时间：2023.09.26