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StringReader.ReadToEndAsync Method

.NET Framework 4.5

Reads all characters from the current position to the end of the string asynchronously and returns them as a single string.

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

[ComVisibleAttribute(false)]
public override 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 string.

ExceptionCondition
ArgumentOutOfRangeException

The number of characters is larger than MaxValue.

ObjectDisposedException

The string reader has been disposed.

InvalidOperationException

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

The following example shows how to read an entire string asynchronously.

using System;
using System.IO;
using System.Text;

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            ReadCharacters();
        }

        static async void ReadCharacters()
        {
            StringBuilder stringToRead = new StringBuilder();
            stringToRead.AppendLine("Characters in 1st line to read");
            stringToRead.AppendLine("and 2nd line");
            stringToRead.AppendLine("and the end");

            using (StringReader reader = new StringReader(stringToRead.ToString()))
            {
                string readText = await reader.ReadToEndAsync();
                Console.WriteLine(readText);
            }
        }
    }
}
// The example displays the following output: 
// 
// Characters in 1st line to read 
// and 2nd line 
// and the end 
//

.NET Framework

Supported in: 4.6, 4.5

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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