前台代码
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" 
    aria-labelledby="myModalLabel" aria-hidden="true" >  
  <div class="modal-dialog" style="width:830px;">  
    <div class="modal-content">  
      <div class="modal-header">  
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>  
        <h4 class="modal-title">编辑信息</h4>  
      </div>  
      <div class="modal-body">  
//这里要注意src的路径先不要给   等选择编辑的时候用ajax的回调函数给  不然会报加载页面错误
          <iframe id="NoPermissioniframe" width="100%" height="70%" frameborder="0"></iframe>
      </div>  
      <div class="modal-footer">  
        @*<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>  
        <button type="button" class="btn btn-primary">Save changes</button>*@  
      </div>  
    </div><!-- /.modal-content -->  
  </div><!-- /.modal-dialog -->  
</div><!-- /.modal --->
JS代码
var frameSrc = "/SysLog/EidtBtnByUsers"
                              //给iframe加上src路径
                            $("#NoPermissioniframe").attr("src", frameSrc);
                             //显示模态框  只有在选择编辑的行   然后根据回调函数成功后才会显示模态框
                            $('#myModal').modal({ show: true, backdrop: 'static' })