ReadToEndAsync Method

TextReader.ReadToEndAsync Method ()

.NET Framework 4.6 and 4.5

Reads all characters from the current position to the end of the text reader asynchronously and returns them as one string.

Namespace:   System.IO
Assembly:  mscorlib (in mscorlib.dll)

[HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading = true)]
public virtual Task<string> ReadToEndAsync()

Return Value

Type: System.Threading.Tasks.Task<String>

A task that represents the asynchronous read operation. The value of the TResult parameter contains a string with the characters from the current position to the end of the text reader.

Exception Condition

The number of characters is larger than MaxValue.


The text reader has been disposed.


The reader is currently in use by a previous read operation.

The TextReader class is an abstract class. Therefore, you do not instantiate it in your code. For an example of using the ReadToEndAsync method, see the StreamReader.ReadToEndAsync method.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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