SharePoint列表Email按钮JSON代码：自动填充邮件主题可行性问询

你只需要利用mailto协议的subject参数，就能在点击按钮时自动填充邮件主题。具体修改现有JSON里的href属性即可：

原代码中的href是：

"href": "='mailto:' + [$Kontakt.email]"

假设存储邮件主题的字段内部名称是EmailSubject（请替换成你实际使用的字段内部名称），修改后的href应该写成：

"href": "='mailto:' + [$Kontakt.email] + '?subject=' + encodeURIComponent([$EmailSubject])"

用encodeURIComponent是为了处理主题里的空格、特殊字符，避免mailto链接失效。

修改后的完整JSON代码如下：

{
  "_comment": "A button to send an email",
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "a",
  "attributes": {
    "class": "ms-fontColor-black ms-fontColor-white--hover",
    "title": "Send Email",
    "href": "='mailto:' + [$Kontakt.email] + '?subject=' + encodeURIComponent([$EmailSubject])",
    "target": "_blank"
  },
  "style": {
    "border": "none",
    "cursor": "pointer",
    "background-color": "transparent"
  },
  "children": [
    {
      "elmType": "div",
      "attributes": {
        "class": "ms-bgColor-greenLight ms-bgColor-green--hover ms-fontColor-black ms-fontColor-white--hover"
      },
      "style": {
        "font-size": "16px",
        "font-family": "arial",
        "border": "1px solid Black",
        "border-radius": "7px",
        "padding": "3px 5px 3px 5px",
        "box-shadow": "2px 2px #999"
      },
      "children": [
        {
          "elmType": "div",
          "attributes": {
            "iconName": "Mail"
          },
          "style": {
            "display": "=if('Mail' != '','inline-block','none')",
            "vertical-align": "middle",
            "padding-right": "5px"
          }       
        },
        {
          "elmType": "div",
          "txtContent": "=if('' != '',' EMAIL',' EMAIL')",
          "style": {
            "display": "inline-block",
            "font-family": "arial",
            "vertical-align": "middle"
          }
        }
      ]
    }
  ]
}

注意：务必将代码里的[$EmailSubject]替换为你实际存储邮件主题的字段内部名称——这个名称可以在SharePoint列表设置的字段详情页面找到。

内容的提问来源于stack exchange，提问作者Elvedin Odžini