VB.NET Language in a Nutshell, Second Edition

Name

Debug.Write Method

Class

System.Diagnostics.Debug

Syntax

Debug.Write(Output[, Category])

Output (required; String or Object)

The string to be sent to the Output window, or the object whose name is to be sent to the Output window

Category (optional; String)

A category name used to group output messages

Description

Prints text in the Output window in the design-time environment

Rules at a Glance

• If Output is a string, the string is printed to the Output window.

• If Output is a nonstring object, the ToString property of the Object object is invoked. This just outputs a string version of the name of the object.

• Supplying a Category argument is useful when you want to organize the output from several Debug.Write statements by category. Output from the method then takes the form:

  Category: Output

  if Output is a string, and:

  Category: Output.ToString

  if Output is a nonstring object.

Programming Tips and Gotchas

In Visual Basic applications, Debug.Write executes only when an application is run in the design-time environment; the statement has no effect in a compiled application.

See Also

Debug.WriteIf Method, Debug.WriteLine Method, Debug.WriteLineIf Method