A good practice is to use these objects in a using statement so that the unmanaged resources are correctly disposed. File — to be used with. NET provides extensive formatting support, which is described in greater detail in the following formatting topics: In order to invoke the WriteAsync method, the method call needs to be within an async method.
Synchronized for a thread-safe wrapper. For more information about enumeration format specifiers, see Enumeration Format Strings.
Element Description index The zero-based position in the parameter list of the object to be formatted. The format parameter consists of zero or more runs of text intermixed with zero or more indexed placeholders, called format items, that correspond to an object in the parameter list of this method.
The default UTF-8 encoding for this constructor throws an exception on invalid bytes.
ComVisibleAttribute SerializableAttribute Examples The following example shows how to use a StreamWriter object to write a file that lists the directories on the C drive, and then uses a StreamReader object to read and display each directory name.
The following classes and methods are typically used to write text to a file: If formatString is not specified and the object to be formatted implements the IFormattable interface, null is passed as the value of the format parameter that is used as the IFormattable.
Important This type implements the IDisposable interface. The constructor used in this example is not supported for use in Windows Store Apps. If a specified object is not referenced in the format string, it is ignored. WriteAsync text End Using End Sub Example The following example shows how to write text to a new file and append new lines of text to the same file using the File class.
Because this overload has three objects in its parameter list, the value of index must always be 0, 1, or 2.
Example The following example shows how to synchronously write text to a new file using the StreamWriter class, one line at a time.
For this reason, the samples perform minimal error checking and exception handling, if any. If the object specified by index is null, the format item is replaced by String. To dispose of it indirectly, use a language construct such as using in C or Using in Visual Basic.
For more information about the composite formatting feature, see Composite Formatting. For more information about the composite formatting feature, including the syntax of a format item, see Composite Formatting.
The formatting process replaces each format item with the string representation of the value of the corresponding object.Use the WriteAsync method to write asynchronously to the current stream. If the write operation is successful, the position within the stream advances by the number of bytes written.
If an exception occurs, the position within the stream remains unchanged. Can't find the localized string giveDocumentationFeedback for template Reference.
If you want to write a string to a stream, you must first convert it to bytes, or in other words encode it. You can do that manually (as you suggest) using the mint-body.comes(Charset) method, but you should avoid the mint-body.comes() method, because that uses the default encoding of the JVM, which can't be reliably predicted in a portable way.
If you want to write to a text file, the best way to do this would probably be with an ofstream, an "out-file-stream".
It behaves exactly like std::cout, but the output is written to a file. The following example reads one string from stdin, and then writes this string to the file mint-body.com Write(String, Object) Write(String, Object) Write(String, Object) Write(String, Object) Writes a formatted string to the text string or stream, using the same semantics as the Format(String, Object) method.
In any case, both objects have internal string buffers that use independent sequences after the call.
The internal stringbuf object has at least the same duration as the stringstream object. Parameters. How to: Write to a Text File (C# Programming Guide) 07/20/; 2 minutes to read Contributors. all; In this article.
These examples show various ways to write text to a file.Download