[UWP][Textblock] Long string doesn't wrap

Platform

UWP

What platform is your issue or question related to? (Delete other platforms).

• UWP

Author or host

Host

Are you an author (like sending something to Outlook), or a host that is rendering your own cards? If host, please specify the corresponding host (app) name. Cortana on Windows

What version are you using? Ex: NuGet 1.0.2, or latest main, etc… 1.2.7

Details

We have long strings in an AC textblock, when we specify for them to wrap they don’t wrap unless the string has spaces

We are also seeing a strange wrap if there is a + character- this causes the wrap to happen wherever the + character is in the string which could be early on:

This is not an issue for the web renderer, only seems to happen on UWP.

Here is the JSON for this issue:

{
  "type": "AdaptiveCard",
  "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
  "version": "1.2",
  "body": [
    {
      "type": "TextBlock",
      "text": "ThisIsAReallyLongTextBlockWithNoSpaces",
      "size": "ExtraLarge",
      "wrap": true,
      "maxLines": 2
    }
  ]
}

[RebeccaAnne]

Confirmed that the main wrapping bug repros in 1.2.7 but not 2.1.0. Looks like this got fixed somewhere along the way. Investigating the + behavior.

[RebeccaAnne]

The main issue where long words were not wrapping is fixed in the latest version. The breaking on + is the behavior of the UWP TextBlock control, and is not configurable. Although this may not be consistent with Adaptive Cards behavior on other platforms (JavaScript doesn’t do this, for example), it is consistent with text block behavior in UWP generally. Closing this issue.