firefox 在使用Ext表单赋值时出现security error code 1000错误的问题所在

引用国外论坛网址：http://bytes.com/topic/javascript/answers/510210-formfield-not-updated

最近在做工作组新的官方网站后台的时候第一次使用了Ext。

当选中一条新闻 然后把一条新闻的相关内容添加到表单中时Firebug出现了security error code 1000错误

{
                xtype:"textfield",
                fieldLabel: "新闻图片",
                name:"NewsImage",
                inputType:"file",
                anchor:"50%"
            },

 然后我通过搜索国外论坛得出问题所在,我在表单填充的时候将fileupload(Textfield type='file')也硬性赋值，用国外的话说就是：

There is no point in even trying to write to the value of an <input
type="file"field. Allowing such an action would be a serious security
violation in any browser, as it would allow a remote web site to
automate the uploading of any file from the user's computer.

于是乎，去掉name,问题解决

{
2                xtype:"textfield",
3                fieldLabel: "新闻图片",
4                inputType:"file",
5                anchor:"50%"
6            }

谨记，给fileupload是一件危险的事