小编Miz*_*iaQ的帖子

我试图在ASP.NET中使用jGrowl,但我收到Microsoft JScript运行时错误:尝试在IE中运行页面时,Object不支持此属性或方法错误.任何想法为什么会这样？

<link rel="stylesheet" href="css/jquery.jgrowl.css" type="text/css" />
<style type="text/css">
div.jGrowl div.smoke {
background: url(images/smoke.png) no-repeat;
-moz-border-radius:  0px;
-webkit-border-radius: 0px;
width:      280px;
height:     55px;
overflow:     hidden;
}
</style>
<!--[if lt IE 7]>
<link rel="stylesheet" href="css/jquery.jgrowl.ie6.css" type="text/css" />
<![endif]-->

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/jquery.jgrowl.js"></script>
<script type="text/javascript" src="js/jquery.template.js"></script>
<script type="text/javascript" src="js/jquery.ui.all.js"></script>
<script type="text/javascript" src="js/jquery-1.4.2.js" ></script>
<script type="text/javascript">

    $(document).ready(function(){

    $('#test2').jGrowl("TEST", {
        theme: 'smoke',
        closer: true
    });

});

</script>

身体:

<a onclick="$('#test2').jGrowl('TEST');" href="javascript:void(0);">Sample 3</a>

错误:无法将null值分配给类型为System.Int32且具有非可空值类型的成员.程序在这里崩溃:

Nullable<Int32> maxTagFrequency = (from t in tagSummary select t.tagCount).Max();

这很奇怪,因为我声明变量可以为空,int？maxTagFrequency也不起作用......

整个LINQ查询:

private void BindTagCloud()
{

 int pro_id = Convert.ToInt32(proj_id);

    var tagSummary = from af in db.AgileFactors
               join psf in db.ProjectStoryFactors on af.AgileFactorID equals psf.AgileFactorID
               join s in db.Stories on psf.StoryID equals s.StoryID 
               join pim in db.ProjectIterationMembers on s.ProjectIterationMemberID equals pim.ProjectIterationMemberID
               join it in db.Iterations on pim.ProjectIterationID equals it.ProjectIterationID
               join pro in db.Projects on it.ProjectID equals pro.ProjectID
               where pro.ProjectID == pro_id &&
                     pro.ProjectID == it.ProjectID &&
                     it.ProjectIterationID == pim.ProjectIterationID && …