Microsoft Bot Framework中Adaptive Cards无法渲染问题求助

核心问题：Validation属性格式不兼容Adaptive Cards 1.2 #

你的Adaptive Cards指定了1.2版本，但Input.Text的validation采用了旧版本语法：1.2版本中该属性需为包含regex和errorMessage的对象，而非直接传入正则字符串；同时原error属性已被errorMessage替代。语法不兼容会导致卡片解析失败，最终显示空白。

修正后的Adaptive Cards JSON #

{
  "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
  "version": "1.2",
  "type": "AdaptiveCard",
  "body": [
    {
      "type": "TextBlock",
      "text": "Please input ClientId, RequestId, TimeStamp, name of your Team",
      "weight": "bolder",
      "size": "medium",
      "style": "heading",
      "wrap": true
    },
    {
      "type": "TextBlock",
      "text": "Please also upload the ESRP Logs and your build logs after creating ticket to the Portal.",
      "isSubtle": true,
      "wrap": true
    },
    {
      "type": "Input.Text",
      "label": "Your Onboarding ClientId",
      "id": "ClientId",
      "validation": {
        "regex": "^[{]?[0-9a-fA-F]{8}-([0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}[}]?$",
        "errorMessage": "Please enter your ClientId in the specified format"
      },
      "isRequired": true                        
    },
    {
      "type": "Input.Text",
      "id": "RequestId",
      "label": "RequestId",
      "validation": {
        "regex": "^[{]?[0-9a-fA-F]{8}-([0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}[}]?$",
        "errorMessage": "Please enter a valid RequestId"
      }
    },
    {
      "type": "Input.Text",
      "id": "TimeStamp",
      "label": "TimeStamp"   
    },
    {
      "type": "Input.Text",
      "id": "TeamName",
      "label": "TeamName"   
    }
  ],
  "actions": [
    {
      "type": "Action.Submit",
      "title": "Submit"
    }
  ]
}

额外排查步骤 #

• 验证卡片语法：将JSON粘贴到Adaptive Cards可视化编辑器，检查是否存在语法或兼容性报错。
• 确认Bot发送方式：确保发送卡片时，Attachment的ContentType设置为application/vnd.microsoft.card.adaptive，示例C#代码：

var adaptiveCardAttachment = new Attachment()
{
    ContentType = "application/vnd.microsoft.card.adaptive",
    Content = JsonConvert.DeserializeObject(yourCardJson)
};
var reply = MessageFactory.Attachment(adaptiveCardAttachment);
await turnContext.SendActivityAsync(reply, cancellationToken);

• 版本兼容性：若使用的Bot Framework SDK或聊天渠道对1.2版本支持有限，可尝试将卡片版本降级到1.1或1.0后测试渲染效果。
• 渠道特性限制：不同聊天渠道对Adaptive Cards属性支持存在差异，比如部分渠道不支持style: heading，可暂时移除该属性测试是否能正常渲染。

内容的提问来源于stack exchange，提问作者Ashutosh Kumar