[Adaptive Cards Templating] AdaptiveCardTemplate not able to parse template string containing \\\"

[pankajvaher]

Target Platform

Please list the platform(s) that your application is targeting and remove platforms you are not targeting:

• .NET Templating

Target Application

Teams

Problem Description

new AdaptiveCardTemplate(templateJsonString) is not parsing template json string properly. Hence, we see issues with \” in the template ("$when":"${sysupdatedby != \"\"}").

To work around this problem, we replaced the \” in the template with single quotes.

Note: This issue is NOT observed with JS templating sdk.

Template string

"{\"type\":\"AdaptiveCard\",\"version\":\"1.2\",\"body\":[{\"type\":\"ColumnSet\",\"columns\":[{\"type\":\"Column\",\"width\":\"auto\",\"items\":[{\"type\":\"Image\",\"url\":\"https://searchuxcdn.azureedge.net/designerapp/images/servicenow-icon.png\",\"size\":\"Small\",\"horizontalAlignment\":\"Center\",\"altText\":\"ServiceNow logo\",\"$when\":\"https://searchuxcdn.azureedge.net/designerapp/images/servicenow-icon.png!=\\\"\\\"\"}],\"height\":\"stretch\"},{\"type\":\"Column\",\"width\":8,\"items\":[{\"type\":\"TextBlock\",\"text\":\"[${number} ${shortdescription}](${AccessUrl})\",\"color\":\"Accent\",\"size\":\"Medium\",\"weight\":\"Bolder\",\"$when\":\"${shortdescription != ''}\"},{\"type\":\"RichTextBlock\",\"inlines\":[{\"type\":\"TextRun\",\"$when\":\"${sysupdatedby != \\\"\\\"}\",\"text\":\"${sysupdatedby} \",\"weight\":\"Bolder\"},{\"type\":\"TextRun\",\"$when\":\"${sysupdatedby != \\\"\\\"}\",\"text\":\" modified \"},{\"type\":\"TextRun\",\"$when\":\"${sysupdatedon != \\\"\\\"}\",\"text\":\"{{DATE(${sysupdatedon})}}\"}],\"spacing\":\"None\"},{\"type\":\"TextBlock\",\"text\":\"${ResultSnippet}\",\"wrap\":true,\"maxLines\":3,\"spacing\":\"Medium\",\"$when\":\"${ResultSnippet != \\\"\\\"}\",\"color\":\"Dark\"}],\"horizontalAlignment\":\"Center\",\"spacing\":\"Medium\"}]}],\"$schema\":\"http://adaptivecards.io/schemas/adaptive-card.json\"}"

Expanded Adaptive card:

{
    "type": "AdaptiveCard",
    "version": "1.2",
    "body": [
        {
            "type": "ColumnSet",
            "columns": [
                {
                    "type": "Column",
                    "width": "auto",
                    "items": [
                        {
                            "type": "Image",
                            "url": https://searchuxcdn.azureedge.net/designerapp/images/servicenow-icon.png,
                            "size": "Small",
                            "horizontalAlignment": "Center",
                            "altText": "ServiceNow logo",
                            https://searchuxcdn.azureedge.net/designerapp/images/servicenow-icon.png!=\\""
                        }
                    ],
                    "height": "stretch"
                },
                {
                    "type": "Column",
                    "width": 8,
                    "items": [
          z              {
                            "type": "TextBlock",
                            "text": "[KB0046925 User Account: How to Send B2B Invites Using the Azure Portal?](https://microsoft.service-now.com/kb_view.do?sys_kb_id=2dfd5689db52cf800c1f546adc9619ed)",
                            "color": "Accent",
                            "size": "Medium",
                            "weight": "Bolder"
                        },
                        {
                            "type": "RichTextBlock",
                            "inlines": [
                                {
                                    "type": "TextRun",
                                    "${sysupdatedby != \"\"}",
                                    "text": "v-preetm ",
                                    "weight": "Bolder"
                                },
                                {
                                    "type": "TextRun",
                                    "${sysupdatedby != \"\"}",
                                    "text": " modified "
                                },
                                {
                                    "type": "TextRun",
                                    "${sysupdatedon != \"\"}",
                                    "text": "{{DATE(2021-07-20T18:52:16Z)}}"
                                }
                            ],
                            "spacing": "None"
                        },
                        {
                            "type": "TextBlock",
                            "text": "${ResultSnippet}",
                            "wrap": true,
                            "maxLines": 3,
                            "spacing": "Medium",
                            "${ResultSnippet != \"\"}",
                            "color": "Dark"
                        }
                    ],
                    "horizontalAlignment": "Center",
                    "spacing": "Medium"
                }
            ]
        }
    ],
    "$schema": http://adaptivecards.io/schemas/adaptive-card.json
}

Sample Code

AdaptiveCardTemplate template = new AdaptiveCardTemplate(templateJsonString);
string cardJson = template.Expand(Source);
AdaptiveCardParseResult cardParseResult = AdaptiveCard.FromJson(cardJson);

Version of SDK

AdaptiveCards.Templating Version="1.2.1"

[pankajvaher]

@jwoo-msft any updates on this issue?