点击"输入"不会在IE8中发布表单

Question

我正在使用PHP在需要时传递登录表单,这里是代码:

$htmlForm = '<form id="frmlogin">'.'<label>';
switch(LOGIN_METHOD)
{
    case 'both':
        $htmlForm .= $ACL_LANG['USERNAME'].'/'.$ACL_LANG['EMAIL'];
        break;
    case 'email':
        $htmlForm .= $ACL_LANG['EMAIL'];
        break;
    default:
        $htmlForm .= $ACL_LANG['USERNAME'];
        break;
}                       

$htmlForm .= ':</label>'.
             '<input type="text" name="u" id="u" class="textfield" />'.
             '<label>'.$ACL_LANG['PASSWORD'].'</label>'.
             '<input type="password" name="p" id="p" class="textfield" />'.
             '<center><input type="submit" name="btn" id="btn" class="buttonfield" value="Sign in to extranet" /></center>'.
             '</form>';

return $htmlForm;

问题是,当用户点击进入IE8时,表单不提交,并且用户被迫点击提交按钮.

我该如何纠正这个？

Answer 1

还要注意这个有趣的有趣错误:

我已经学到了很难,如果你的表单是display:none在页面加载,即使你稍后用Javascript显示它,IE8仍然不会在输入时提交.但是,如果它没有在页面加载时隐藏,并且您将其设置为display:none之后,如onDOMReady,则它可以正常工作!WTF

更多细节和解决方法:http://www.thefutureoftheweb.com/blog/submit-a-form-in-ie-with-enter

Answer 2

模拟点击

这是我在jQuery中的表现.

// Recreating normal browser behavior in Javascript. Thank you, Microsoft.
jQuery.fn.handle_enter_keypress = function() {
  if ($.browser.msie){
    $(this).find('input').keypress(function(e){
      // If the key pressed was enter
      if (e.which == '13') {
        $(this).closest('form')
        .find('button[type=submit],input[type=submit]')
        .filter(':first').click();
      }
    });
  }
}

$('form').handle_enter_keypress();

Answer 3

如果这是一个真正的问题并且您找不到其他解决方案，您可以随时onkeypress为表单执行一个事件并检查是否Enter按下了该键。

编辑：根据机器的答案，这是正确的代码：

$htmlForm .= ':<form><label>'.$ACL_LANG['USERNAME'].'</label>'.
                                     '<input type="text" name="u" id="u" class="textfield" />'.
                                     '<label>'.$ACL_LANG['PASSWORD'].'</label>'.
                                     '<input type="password" name="p" id="p" class="textfield" />'.
                                     '<center><input type="submit" name="btn" id="btn" class="buttonfield" value="Sign in to extranet" /></center>'.
                                     '</form>';

编辑 2：您的 HTML 有效。尝试这个：

function checkEnter(e) { //e is event object passed from function invocation
    var characterCode //literal character code will be stored in this variable

    if (e && e.which) { //if which property of event object is supported (NN4)
        e = e
        characterCode = e.which //character code is contained in NN4's which property
    }
    else {
        e = event
        characterCode = e.keyCode //character code is contained in IE's keyCode property
    }

    if (characterCode == 13) { //if generated character code is equal to ascii 13 (if enter key)
        document.forms[0].submit() //submit the form
        return false
    }
    else {
        return true
    }
}