TextWriter.WriteLine Method (String, Object, Object)

Writes out a formatted string and a new line, using the same semantics as Format.

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


Public Overridable Sub WriteLine ( _
    format As String, _
    arg0 As Object, _
    arg1 As Object _
public virtual void WriteLine(
    string format,
    Object arg0,
    Object arg1


  • arg0
    Type: System.Object
    The object to write into the format string.
  • arg1
    Type: System.Object
    The object to write into the format string.


Exception Condition

format is nulla null reference (Nothing in Visual Basic).


The TextWriter is closed.


An I/O error occurs.


The format specification in format is invalid.


The number indicating an argument to be formatted is less than zero, or larger than or equal to the number of provided objects to be formatted.


This method does not search the specified String for individual newline characters (hexadecimal 0x000a) and replace them with NewLine.

If a specified object is not referenced in the format string, it is ignored.

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.