window.showModalDialog() and window.showModelessDialog()

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本文探讨了Internet Explorer中非标准的window.showModalDialog()和window.showModelessDialog()方法，这两种方法用于创建真正的对话框窗口。文章详细介绍了这些对话框的优点及其在Web应用中的适用性，并列举了一些已知的问题和限制。

window.showModalDialog() and window.showModelessDialog()

2007-01-28 20:19

Internet   Explorer   has   a   couple   non-standard   extensions   to   the   window   object:   window.showModalDialog()   and   window.showModelessDialog(),   both   of   which   create   true   dialog-type   windows.     These   dialogs   are   much   better   suited   than   normal   windows   (as   created   by   window.open())   for   use   in   web   applications.

  Unfortunately,   though,   these   dialogs   have   several   annoying   bugs   and   limitations:
  Window   targeting   is   broken,   so   new   opening   URLs   always   opens   new   windows   (even   when   a   target   window   is   explicitly   set).     Each   of   these   actions   is   affected:
  Submitting   forms
  Opening   hyperlinks
  Programmatically   using   window.navigate(),   window.location=url,   window.location.assign(),   window.location.reload(),   window.location.replace()
  The   window.opener   property   is   neglected.     It   should   refer   to   the   opening   window   object   (where   window.showModalDialog()   was   called),   but   is   empty   instead.
  Keyboard   shortcuts   are   disabled.
  IE's   context   menu   is   disabled.
  Cookies   are   inconsistently   available   in   the   dialog.
  The   CSS   accelerator   property   is   broken.     It   is   simply   ignored.
  The   document.title   property   is   partially   broken.     It   can   only   be   set   declaratively   with   <title></title>   tags   when   the   page   loads,   but   not   programmatically   at   runtime   (actually   it   can   be   changed   at   runtime,   but   those   changes   are   never   shown   in   the   dialog's   titlebar).