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StringBuilder.AppendLine Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Appends the default line terminator to the end of the current StringBuilder object.

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

public StringBuilder AppendLine()

Return Value

Type: System.Text.StringBuilder
A reference to this instance after the append operation has completed.


Enlarging the value of this instance would exceed its maximum capacity.

The default line terminator is the current value of the Environment.NewLine property.

The capacity of this instance is adjusted as needed.

The following code example demonstrates the AppendLine method.

// This example demonstrates the StringBuilder.AppendLine() 
// method.

using System;
using System.Text;

class Example
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
      StringBuilder sb = new StringBuilder();
      string line = "A line of text.";
      int number = 123;

      // Append two lines of text.
      sb.AppendLine("The first line of text.");

      // Append a new line, an empty string, and a null cast as a string.

      // Append the non-string value, 123, and two new lines.

      // Append two lines of text.
      sb.AppendLine("The last line of text.");

      // Convert the value of the StringBuilder to a string and display the string.
      outputBlock.Text += sb.ToString() + "\n";
This example produces the following results:

The first line of text.
A line of text.


A line of text.
The last line of text.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone