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  • dom obj fileupload

    ... field must be selected before submitting a form type Returns which type of form element the file upload button is value Returns the path or the name of the selected file Standard Properties and Events ...

  • prop fileupload autofocus

    ... be: true Try it yourself » Definition and Usage The autofocus property sets or returns whether a file upload button should automatically get focus when the page loads, or not. This property reflects the HTML autofocus attribute ...

  • prop fileupload multiple

    ... ; Definition and Usage The multiple property sets or returns whether more than one file can be selected with the file upload button. When set to true, it specifies that the user is allowed to select more than one file. This property ...

  • prop fileupload required

    ... field is a required part of form submission, otherwise it returns false More Examples Example Set a file upload field to be a required part of form submission: document.getElementById("myFile").required = true; Try ...

  • prop fileupload disabled

    ... will be: Try it yourself » Definition and Usage The disabled property sets or returns whether a file upload button should be disabled, or not. A disabled element is unusable and un-clickable. Disabled elements are usually ...

  • prop fileupload name

    ... Try it yourself » Definition and Usage The name property sets or returns the value of the name attribute of a file upload button. The name attribute is used to identify form data after it has been submitted to the server, or to ...

  • prop fileupload accept

    ... » Definition and Usage The accept property sets or returns the value of the accept attribute of the file upload button. The accept attribute specifies the types of files that the server accepts (that can be submitted through a ...

  • prop fileupload type

    Input FileUpload type Property Input FileUpload Object Example Find out which type of form element the file upload button is: var x = document.getElementById("myFile").type; The result of x will be: file Try it yourself & ...

  • prop fileupload form

    ... Try it yourself » Definition and Usage The form property returns a reference to the form containing the file upload button. This property returns a form object on success. Note: This property is read only. Browser Support ...

  • dom obj fileupload

    ... 属性被忽略，并且对于此类元素来说，value 属性是只读的，这意味着只有用户可以输入一个文件名。当用户选择或编辑一个文件名，file-upload 元素触发 onchange 事件句柄。 您可以通过遍历表单的 elements[] 数组，或者通过使用 document.getElementById()来访问 FileUpload 对象。 FileUpload 对象属性 W3C: W3C 标准。 属性 描述 W3C disabled ...

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