FileUpload

创建源

事件句柄

• onBlur
• onChange
• onFocus

A FileUpload object is a form element and must be defined within a FORM tag.

属性概览

方法概览

示例

<FORM NAME="form1">
File to send: <INPUT TYPE="file" NAME="myUploadObject">
<P>Get properties<BR>
<INPUT TYPE="button" VALUE="name"
   onClick="alert('name: ' + document.form1.myUploadObject.name)">
<INPUT TYPE="button" VALUE="value"
   onClick="alert('value: ' + document.form1.myUploadObject.value)"><BR>
</FORM>

参看

属性

描述

name

安全性

描述

If multiple objects on the same form have the same NAME attribute, an array of the given name is created automatically. Each element in the array represents an individual Form object. Elements are indexed in source order starting at 0. For example, if two Text elements and a FileUpload element on the same form have their NAME attribute set to "myField", an array with the elements myField[0], myField[1], and myField[2] is created. You need to be aware of this situation in your code and know whether myField refers to a single element or to an array of elements.

示例

newWindow=window.open("http://home.netscape.com") function valueGetter() {
   var msgWindow=window.open("")
   for (var i = 0; i < newWindow.document.valueTest.elements.length; i++) {
      msgWindow.document.write(newWindow.document.valueTest.elements[i].name + "<BR>")
   }
}

type

示例

for (var i = 0; i < document.form1.elements.length; i++) {
   document.writeln("<BR>type is " + document.form1.elements[i].type)
}

value

安全性

Navigator 4.0: Setting a file upload widget requires the UniversalFileRead privilege. 要获取 Navigator 4.0 中关于安全性更多的信息，请看“JavaScript 指南”中的第七章“JavaScript 安全性”。

描述

方法

语法

参看

focus

语法

参看

handleEvent

语法

描述

select

语法

描述

参看