EditBox with AcceptReturn="false" accepts pasting text with CR(LF) characters.

[YevgenijZ]

Describe the bug
EditBox with AcceptReturn="false" accepts pasting text with CR-LF and transforms to multi-line EditBox.

To Reproduce
In any app select multi-line text.
Paste selection into EditBox

Expected behavior
CR(LF) should be removed when pasting text.

Desktop (please complete the following information):

• OS: [e.g. Windows, Mac, Linux (State distribution)]
• Windows

[Gillibald]

That's by design

[YevgenijZ]

This is vey odd, in other apps I've seen either discarding pasted text after first line break or just remove line breaks. Not really pleasant to see TextBox growing twice in height out of sudden.

[YevgenijZ]

MaxLines is a good option and it definitely missing, but have a look WPFs TextEditCopyPaste.PastePlainText .

MaxLines=1 will partially hide content which will be set to view models property entirely. This property MaxLines have a different purpose.

[Gillibald]

We can adapt that behavior in a future version of the TextBox. Feel free to submit a PR that addresses this in the current version.