<% using (Html.BeginForm(Html.ViewContext.RouteData.Values["action"].ToString(), Html.ViewContext.RouteData.Values["controller"].ToString(), FormMethod.Post, new { enctype = "multipart/form-data" }))
       { %>
         
        <div>
        <table>
            <tr>
                <td>
                    文章图片
                </td>
                <td>                    
                  <input id="txtUploadFile" type="file" name="file" accept="image/gif" onchange="return FilterFileType();"  style="width:350px;" />
                </td>
                </tr>
            <tr>
                <td>
                </td>
                <td>
                
                    <input type="submit" onclick="$('#IsPublish').attr('value','True');" value="保存并发布" />
                </td>
            </tr>
        </table>
    </div>
    
        <script type="text/javascript">
         function FilterFileType() {
            var fullName = document.getElementById("txtUploadFile").value;           
            if (fullName != "")   
              {   
                  var   s,ss;
                  var s = fullName;   
                  ss=   s.substr(s.length-4,s.length);   
                  if   (ss!=".gif"   &&   ss!=".jpg"   &&   ss!=".bmp")   
                  {   
                      alert("图片文件上传只支持.gif   .jpg   .bmp");   
                      return   (false);   
                  }
              }

         }