如何在jqgrid中按ctrl+s保存添加和编辑表单

jqgrid编辑和添加表单包含文本区域，可以编辑和输入添加新的行。

如何允许Ctrl+S保存编辑和添加表单，就像在这些表单中单击保存按钮一样?

对于内联编辑，我可以将Save按钮添加到jqgrid工具栏并使用

    case 83: $("#grid_savebutton").click(); break;

在主体onkeydown事件中模拟用Ctrl+S按下此按钮

如何通过Ctrl+S保存编辑和添加表单?

添加代码

        case 83: saveb = $("#TblGrid_" + "grid"+ "_2 #sData");
            if (saveb.length > 0 ) {
                   evt.stopPropagation();
                   return;
                  }
            $("#grid_savebutton").click(); 
            break;

到主体onkeydown处理程序。在第一次编辑表单打开后，这段代码总是发现sData按钮存在，并且不再调用grid_savebutton。它看起来像sData按钮存在，即使编辑/添加表单关闭。如何修复它，以便如果编辑/添加表单不打开，$("#grid_savebutton").click()被执行?

更新2

使用的按键绑定:

            jQuery.extend(jQuery.jgrid.edit, {
               savekey: [true, 13],
               recreateForm: true,
               closeOnEscape: true,
               reloadAfterSubmit: false,
               beforeShowForm: function ($form) {
                 var gridIdEncoded = $.jgrid.jqID($form[0].id.substring(8));
                 $("#editmod" + gridIdEncoded).bind( 'keydown', beforeShowFormHandler);
                  },
               onClose: function () {
                 var gridIdEncoded = 'grid'; // $.jgrid.jqID($form[0].id.substring(8));
                 $("#editmod" + gridIdEncoded).unbind( 'keydown', beforeShowFormHandler);
                  }
            });

    var beforeShowFormHandler = function (e) {
        var gridIdEncoded = 'grid';
        if (e.ctrlKey && e.which === 83) { // 83 - 's'
          $("#TblGrid_" + gridIdEncoded + "_2 #sData").trigger("click");
          return false;
          }
    };

全局keydown绑定:

$(function () {
    $("html").keydown(body_onkeydown);
});

function body_onkeydown(evt) {
    var saveb;
    if (evt.ctrlKey) {
        switch (evt.keyCode) {
            case 83: 
              saveb = $("#TblGrid_" + "grid" + "_2 #sData");
                // todo: saveb.length > 0 is always true after form is opened first time: 
                if (saveb.length > 0) return;
                $("#grid_savebutton").click(); break;
               }
        cancel(evt);
        return false;
    }
}
function cancel(evt) {
    evt.returnValue = false;
    evt.keyCode = 0;
    evt.cancelBubble = true;
    evt.preventDefault();
    evt.stopPropagation();
}

Update3

TinyMCE html编辑器在afterShowForm事件中用

    $('.htmleditor', formSelector).attr('cols', '50').attr('rows', '15').tinymce({
        theme: "advanced",
        language: "et",
        theme_advanced_buttons2: "",
        theme_advanced_buttons3: "",
        theme_advanced_buttons1: "bold,italic,underline,strikethrough,separator,justifyleft,justifycenter," +
"justifyright,justifyfull,|,bullist,numlist,|,outdent,indent,|,cut ,copy,paste,undo,redo" +
"link,unlink,image,cleanup,code,hr,|,removeformat,formatselect,|,fontselect,fontsizeselect," +
"sub,sup,|,forecolor,backcolor,forecolorpicker,backcolorpicker,charmap,visualaid," +
"anchor,blockquote"
    });
}

textarea中的Ctrl+S导致IE9标准的保存对话框在这种情况下出现。如何允许Ctrl+S保存表单在tinyMCE也?