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StreamWriter.Null Field

Definition

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Provides a StreamWriter with no backing store that can be written to, but not read from.

public static readonly System.IO.StreamWriter Null;

Field Value

Examples

The following example demonstrates a use of the Null field.

if(sw.Equals(StreamWriter.Null))
{
    sw.WriteLine("The store can be written to, but not read from.");
}

Remarks

Use Null to redirect output to a StreamWriter that will not consume any operating system resources.

When the StreamWriter.Write methods are invoked on Null, the call simply returns, and no data is actually written to any backing store.

For a list of common I/O tasks, see Common I/O Tasks.

Applies to

उत्पाद संस्करण
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1
UWP 10.0

See also