The members of the enumerator are Read, Write and ReadWrite. FileShare Enumerator The enumerator contains constants for controlling the access that the FileStream constructors have on the file.
The members of the FileShare enumerator are as follows: 1 Inheritable: It allows a file handle to pass the inheritance to the child processes 2 None: It rejects sharing of the current file 3 Read: It allows the opening of a file for reading purpose 4 ReadWrite: It allows opening a file for the purpose of reading and writing 5 Write: It allows the opening of a file for writing Open, FileAcess. Seek 0, SeekOrigin. ReadLine ; while str! Close ; fr.
ReadData ; Console. The following table describes the methods of the StreamWriter class. Methods Description Close It closes the current object and the stream Flush It clears all buffers for the current writer and causes any buffered data to be written to the stream Write It writes to the stream WriteLine IT writes data specified by the overloaded parameters, followed by the end of line The following code implements the StreamWriter class to accept data from the user and write it into the file.
Append, FileAccess. ReadLine ; w. Write str ; w. Flush ; fs. WriteData ; Console. The code snippet is as shown below: The following table shows the methods of the BinaryReader class. Method Description Close It closes the current reader and stream Read It reads the characters from the stream and moves to the current position of the stream BinaryWriter Class The BinaryWriter class is used to write binary data to a stream.
The following table shows the methods used by the BinaryWriter class. Method Description Close It closes the current BinaryWriter object and stream Seek It sets the position within the current stream Write It writes the value to the current stream Flush It clears the buffer for the current writer and the buffered data is written to the device The following code is used for implementing the BinaryReader and BinaryWriter classes to read and write data to the files.
Create ; Console. Write i ; Console. Write j ; Console. Write b ; Console. Write Close ; Console. ReadInt32 ; Console. ReadDouble ; Console. ReadBoolean ; Console. Read ; datain. Property Description Attributes It gets or sets attributes of the current file.
CreationTime It gets or sets the creation time of the file. Exists It gets a Boolean value indicating whether the directory exists or not. Extension It gets a string containing the file extension. FullName It gets a string containing full path of the directory. LastAccessTime It gets the last accessed time of the directory.
Name It gets a string containing the name of a given file. The following table describes the commonly used methods of the DirectoryInfo class. Method Description Create It creates a directory. CreateSubDirectory It creates a subdirectory. Delete It deleted a directory.
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Choose file. Seleccionar Archivo. Wybierz pliki. Pilih file. In addition to the attributes listed above, the following non-standard attributes are available on some browsers. You should try to avoid using them when possible, since doing so will limit the ability of your code to function in browsers that don't implement them. The Boolean webkitdirectory attribute, if present, indicates that only directories should be available to be selected by the user in the file picker interface.
Though originally implemented only for WebKit-based browsers, webkitdirectory is also usable in Microsoft Edge as well as Firefox 50 and later. However, even though it has relatively broad support, it is still not standard and should not be used unless you have no alternative.
Each unique file type specifier may take one of the following forms:. The accept attribute takes as its value a string containing one or more of these unique file type specifiers, separated by commas. For example, a file picker that needs content that can be presented as an image, including both standard image formats and PDF files, might look like this:. Note: You can find this example on GitHub too — see the source code , and also see it running live. Regardless of the user's device or operating system, the file input provides a button that opens up a file picker dialog that allows the user to choose a file.
Including the multiple attribute, as shown above, specifies that multiple files can be chosen at once. The user can choose multiple files from the file picker in any way that their chosen platform allows e. The FileList behaves like an array, so you can check its length property to get the number of selected files.
A number specifying the date and time at which the file was last modified, in milliseconds since the UNIX epoch January 1, at midnight. A Date object representing the date and time at which the file was last modified. This is deprecated and should not be used. Use lastModified instead. A string specifying the file's path relative to the base directory selected in a directory picker that is, a file picker in which the webkitdirectory attribute is set.
This is non-standard and should be used with caution.
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