javascript - CodeMirror 2 - wrong editor height after a hidden textarea unhides - Stack Overflow

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so I have a textarea surrounded by a DIV container:

<div>
  <textarea id="code"> some text here </textarea>
</div>

and this textarea is tranformed into a code editor using CodeMirror:

CodeMirror.fromTextArea('code', {
  lineNumbers: true,
  matchBrackets: true,
  mode: 'text/html'
});

the problem is that when the container of the textarea is hidden (some times it is, depending on what the user chooses to display), then after toggling to unhide it the CodeMirror editor doesn't appear like it should. It only shows one line, and you have to actually click inside it to redraw and show properly.

Does anyone know a fix for this?

so I have a textarea surrounded by a DIV container:

<div>
  <textarea id="code"> some text here </textarea>
</div>

and this textarea is tranformed into a code editor using CodeMirror:

CodeMirror.fromTextArea('code', {
  lineNumbers: true,
  matchBrackets: true,
  mode: 'text/html'
});

the problem is that when the container of the textarea is hidden (some times it is, depending on what the user chooses to display), then after toggling to unhide it the CodeMirror editor doesn't appear like it should. It only shows one line, and you have to actually click inside it to redraw and show properly.

Does anyone know a fix for this?

• javascript
• forms
• show-hide
• codemirror

Share Improve this question Follow edited Jun 15, 2011 at 17:19 gblazex 50.2k1212 gold badges9999 silver badges9292 bronze badges asked Jun 15, 2011 at 17:14 AlexAlex 66.2k185185 gold badges460460 silver badges651651 bronze badges

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1 Answer 1

Sorted by: Reset to default 7

refresh()
If your code does something to change the size of the editor element (window resizes are already listened for), or unhides it, you should probably follow up by calling this method to ensure CodeMirror is still looking as intended.

from CodeMirror manual (assuming you're using version 2)

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