Multiline for WPF TextBox

Question

I am developing an app for sending some feedback   Basically I m trying to make a TextBox for comments  but I m used to the WinForms MultiLine true  I ve set MinLines to 3  which is getting there  but preferably I d like it if the user is able to type wherever in this block - like press enter and do dot points sort of thing  For example   - Item 1        blah - Item 2                blahlb lahbvl   d   But at the moment the text all stays on one line   - Item 1         blah - Item 2                      blahb blahb blah   These comments will then help fill the body of an email which is sent  It may be pointless if I can t easily keep the same formatting when putting this string into the email body string  so that it looks like it does when sent as it does when typed    Can I achieve what I m after or do I have to leave it as all text on one line

User · Answer

Contrary to  Andre Luus  setting Height  quot Auto quot  will not make the TextBox stretch   The solution I found was to set VerticalAlignment  quot Stretch quot

User · Answer

Enable TextWrapping  Wrap  and AcceptsReturn  True  on your TextBox   You might also wish to enable AcceptsTab and SpellCheck IsEnabled too

User · Answer

Here is a sample XAML that will allow TextBox to accept multiline text and it uses its own scrollbars   lt TextBox Height  quot 200 quot  Width  quot 500 quot  TextWrapping  quot Wrap quot  AcceptsReturn  quot True quot  HorizontalScrollBarVisibility  quot Disabled quot  VerticalScrollBarVisibility  quot Auto quot   gt

User · Answer

The only property corresponding in WPF to the Winforms property  TextBox Multiline   true is the WPF property  TextBox AcceptsReturn   true   lt TextBox AcceptsReturn  quot True quot           gt   All other settings  such as VerticalAlignement  WordWrap etc   only control how the TextBox interacts in the UI but do not affect the Multiline behaviour

User · Answer

Also  if  like me  you add controls directly in XAML  not using the editor   you might get frustrated that it won t stretch to the available height  even after setting those two properties   To make the TextBox stretch  set the Height  Auto    UPDATE   In retrospect  I think this must have been necessary thanks to a default style for TextBoxes specifying the height to some standard for the application somewhere in the App resources  It may be worthwhile checking this if this helped you

[wpf] Multiline for WPF TextBox

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