So a while back I wrote this post: #TinyMCE: Fixing Pageload Flickering

Well now I have found a problem with it.  When you load the page with the textarea hidden the plugins don’t seem to bind properly.  I had to come up with a new way to do the same thing.  Here is my solution.  Not ideal but seems to work fine so far.

Notice that the ‘display:none’ is now gone and the size is now set to a size so that the textarea is not visible on the page. Although, there is a small remnant left there. Not sure I like it but I’m not sure how to hide it.

@Html.TextAreaFor(m => m.ContentHtml, 
                       new { @class = "tinymce", maxlength = 5000, 
                       @style = "height:1px; width:1px; " })

Now once TinyMCE is properly initialized I manually set the iframe size to be the height and width I want.

$('textarea.tinymce').tinymce({
  script_url: '/scripts/tinymce/4.0.25/tinymce.min.js',
  theme: "modern",
  toolbar: "bold italic ",
  paste_auto_cleanup_on_paste: true,
  init_instance_callback: function (editor) {
     $(editor.getContainer()).find("iframe").css("height", "300px");
     $(editor.getContainer()).find("iframe").css("width", "100%");
  }
});