Quick Fix: At present, there is no direct resolution for this issue. As a temporary workaround, avoid using quotation marks "" in the SQL statement when composing Adaptive Cards.
The Problem:
When rendering an Adaptive Card in Microsoft Teams using the SQL query in a TextBlock component, an error "Error encountered while rendering this message" is encountered. This occurs specifically when using a particular SQL query. The error is not specific and does not provide detailed information about the root cause.
The Solutions:
Solution 1: Workaround solution
The error message "Error encountered while rendering this message" is due to a confirmed bug in Teams, which is being tracked on GitHub (https://github.com/MicrosoftDocs/msteams-docs/issues/9392). Until the bug is fixed, you can use the following workaround:
Wrap the assignment of the sql variable in WebUtility.HtmlEncode(sql). This will fix the issue.
Example:
var cardContent = new AdaptiveCardTemplate(cardTemplate).Expand(
new
{
Query = WebUtility.HtmlEncode(sql)
}
);
With this workaround, the SQL query will be properly encoded and the card will render correctly in Teams.
It can be fixed by wrapping the assignment into WebUtility.HtmlEncode(sql).
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