关于MVC中的验证问题

我的Model不是写在MVC自带的的Models中。我在添加验证里该怎么验证？

我想在MVC自带的的Models中再写一个一样的Model，验证后再转成别的命名空间中的Model再进行添加操作，可是不知道该怎么转，或者哪位高手有别的更好办法希望指导一下。万分感谢！

别的命名空间中的类：
namespace MkMis.Safety.Domain.Model
{
/// <summary>
/// 通知通告类
/// </summary>
public class Notice : AggregateRoot
{
public string Title { get; set; }
public string Content { get; set; }
public string publisher { get; set; }
public DateTime pubdate { get; set; }
public bool IsDisable { get; set; }
}
}

MVC自带的的Models中类：
namespace MkMis.Web.Models
{
/// <summary>
/// 通知通告类
/// </summary>
public class Notice
{
[Required(ErrorMessage = "必须输入标题")]
public string Title { get; set; }
[Required(ErrorMessage = "必须输入内容")]
public string Content { get; set; }
[Required(ErrorMessage = "必须输入发布人")]
public string publisher { get; set; }
[Required(ErrorMessage = "必须输入发行日期")]
public DateTime pubdate { get; set; }
public bool IsDisable { get; set; }
}
}


页面：
@*@model MkMis.Safety.Domain.Model.Notice*@
@model MkMis.Web.Models.Notice

@{
Layout = null;
}

<!DOCTYPE html>

<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>WelNoticeAdd</title>
<link href="~/lib/css/notice_style.css" rel="stylesheet" type="text/css" />
<script src="~/lib/jquery/jquery-1.5.2.js" type="text/javascript"></script>
<script src="@Url.Content("~/lib/jquery-validation/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/lib/jquery-validation/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

<script type="text/javascript" src="../ckeditor/ckeditor.js"></script>
<script type="text/javascript" src="../ckeditor/ckfinder.js"></script>

</head>
<body>
<div class="wel_top">
<div class="wt_img">
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td>
<img alt="" src="~/Images/subtitle_img.gif" /></td>
<td style="padding-left: 5px;">增加隐患通知信息</td>
</tr>
</table>
</div>
<div class="wt_line"></div>
</div>
@using (Html.BeginForm())
{
@Html.ValidationSummary(true)
<div class="addborder">
<table width="600" border="0" cellspacing="0" cellpadding="0" bgcolor="#CCCCCC">
<tr>
<td bgcolor="#FFFFFF" height="25" width="80" align="right">标题：</td>
<td bgcolor="#FFFFFF" style="padding-left: 3px;">
@Html.EditorFor(model => model.Title)
@Html.ValidationMessageFor(model => model.Title)
</td>
<td bgcolor="#FFFFFF" height="25" width="80" align="right">发布人：</td>
<td bgcolor="#FFFFFF" width="220" style="padding-left: 3px;">
@ViewBag.LoginName
</td>
</tr>
<tr>
<td bgcolor="#FFFFFF" height="25" width="80" align="right">发布时间：</td>
<td bgcolor="#FFFFFF" style="padding-left: 3px;">
@*@Html.EditorFor(model => model.pubdate)
@Html.ValidationMessageFor(model => model.pubdate)*@
@ViewBag.Pubdate
</td>
<td bgcolor="#FFFFFF" height="25" width="80" align="right">是否禁用：</td>
<td bgcolor="#FFFFFF" style="padding-left: 3px;">
@Html.EditorFor(model => model.IsDisable)
@Html.ValidationMessageFor(model => model.IsDisable)
</td>
</tr>
<tr>
<td bgcolor="#FFFFFF" height="25" style="padding-left: 20px;">内容：</td>
<td bgcolor="#FFFFFF" colspan="4" height="150" style="padding-left: 20px;">@Html.TextAreaFor(model => model.Content)</td>
</tr>
</table>
<div style="text-align: right; width: 600px; padding-top: 10px;">
<input type="submit" value="提交" />
</div>
</div>
}
<script>
window.onload = function () {
CKEDITOR.replace('Content');
};
</script>
</body>
</html>