Windows Dev Center

Cmdlet.WriteDebug Method

Writes a debug message to the host.

Namespace: System.Management.Automation
Assembly: System.Management.Automation (in System.Management.Automation.dll)

Dim instance As Cmdlet
Dim text As String


void WriteDebug (
	String^ text
public void WriteDebug (
	String text
public function WriteDebug (
	text : String



The debug message to be written to the host.

Exception typeCondition

The pipeline is stopped. The pipeline was terminated either before the call was made or while the call was in progress. By default, the cmdlet should allow the caller of the processing record method to catch this exception.


The call cannot be completed at this time or cannot be completed from this thread. For more information, see the following Remarks section.

This method provides a way for cmdlet developers to write debug information while troubleshooting their cmdlets.

This method can be called only from within the cmdlet implementation of the BeginProcessing, ProcessRecord, and EndProcessing methods and only from that thread. If this call is made from outside these implementations or from another thread, an InvalidOperationException exception is thrown.

By default, progress information is displayed, However, this behavior can be changed by configuring the DebugPreference shell variable.

For more information about cmdlets, see Windows PowerShell Cmdlets.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.


Target Platforms

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