StringBuilder.AppendLine Method
Appends the default line terminator to the end of the current StringBuilder object.
Assembly: mscorlib (in mscorlib.dll)
Return Value
Type: System.Text.StringBuilderA reference to this instance after the append operation has completed.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | Enlarging the value of this instance would exceed MaxCapacity. |
The default line terminator is the current value of the Environment.NewLine property.
The capacity of this instance is adjusted as needed.
Notes to CallersIn the .NET Framework 4 and the .NET Framework 4.5, when you instantiate the StringBuilder object by calling the StringBuilder(Int32, Int32) constructor, both the length and the capacity of the StringBuilder instance can grow beyond the value of its MaxCapacity property. This can occur particularly when you call the Append and AppendFormat methods to append small strings.
The following example demonstrates the AppendLine method.
// This example demonstrates the StringBuilder.AppendLine() // method. using System; using System.Text; class Sample { public static void Main() { 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."); sb.AppendLine(line); // Append a new line, an empty string, and a null cast as a string. sb.AppendLine(); sb.AppendLine(""); sb.AppendLine((string)null); // Append the non-string value, 123, and two new lines. sb.Append(number).AppendLine().AppendLine(); // Append two lines of text. sb.AppendLine(line); sb.AppendLine("The last line of text."); // Convert the value of the StringBuilder to a string and display the string. Console.WriteLine(sb.ToString()); } } /* This example produces the following results: The first line of text. A line of text. 123 A line of text. The last line of text. */
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
