Checks for a condition; if the condition is false , displays a message box that shows the call stack. Checks for a condition; if the condition is false , outputs a specified message and displays a message box that shows the call stack. Checks for a condition; if the condition is false , outputs two specified messages and displays a message box that shows the call stack.
Checks for a condition; if the condition is false , outputs two messages simple and formatted and displays a message box that shows the call stack. Flushes the output buffer and then calls the Close method on each of the Listeners. Flushes the output buffer and causes buffered data to write to the Listeners collection.
Increases the current IndentLevel by one. Writes a message followed by a line terminator to the trace listeners in the Listeners collection. Writes a formatted string followed by a line terminator to the trace listeners in the Listeners collection. Decreases the current IndentLevel by one. Writes the value of the object's ToString method to the trace listeners in the Listeners collection.
Writes a category name and the value of the object's ToString method to the trace listeners in the Listeners collection. Writes a message to the trace listeners in the Listeners collection. Writes a category name and message to the trace listeners in the Listeners collection. Writes the value of the object's ToString method to the trace listeners in the Listeners collection if a condition is true.
Writes a category name and the value of the object's ToString method to the trace listeners in the Listeners collection if a condition is true. Writes a message to the trace listeners in the Listeners collection if a condition is true.
Writes a category name and message to the trace listeners in the Listeners collection if a condition is true. Writes a formatted message followed by a line terminator to the trace listeners in the Listeners collection. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Skip to main content.
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ActivityTagsCollection is a collection class used to store tracing tags. This collection behaves as follows: The collection items will be ordered according to how they are added.
Don't allow duplication of items with the same key. When using the indexer to store an item in the collection: If the item has a key that previously existed in the collection and the value is null , the collection item matching the key will be removed from the collection.
If the item has a key that previously existed in the collection and the value is not null , the new item value will replace the old value stored in the collection. Otherwise, the item will be added to the collection. Add method will add a new item to the collection if an item doesn't already exist with the same key.
Otherwise, it will throw an exception. Directs tracing or debugging output to either the standard output or the standard error stream. Defines the counter type, name, and Help string for a custom counter. Provides a set of utility functions for interpreting performance counter data.
Enables communication with a debugger. Determines how a class or field is displayed in the debugger variable windows. Identifies a type or member that is not part of the user code for an application. Indicates the code following the attribute is to be executed in run, not step, mode.
Specifies that the type has a visualizer. Encapsulates a single record in the event log. Represents a performance object, which defines a category of performance counters. Represents a. Indicates whether a listener should trace a message based on the source of a trace.
Provides a multilevel switch to control tracing and debug output without recompiling your code. Represents a stack trace, which is an ordered collection of one or more stack frames. Provides a set of methods and properties that you can use to accurately measure elapsed time. Provides an abstract base class to create new debugging and tracing switches. Provides unescaped XML data for the logging of user-provided trace data. Represents an event containing a name and a timestamp, as well as an optional list of tags.
Activities may be linked to zero or more activity context instances that are causally related. Activity links can point to activity contexts inside a single trace or across different traces. Defines a structure that holds the raw data for a performance counter. Describes the relationship between the activity, its parents and its children in a trace. Define the status code of the Activity which indicate the status of the instrumented operation.
Specifies flags defined by the W3C standard that are associated with an activity. Specifies how to handle entries in an event log that has reached its maximum file size. Indicates whether the performance counter category can have multiple instances. Specifies performance counter types that map directly to native types.
This article describes how to trace and debug in Visual C and provides some sample steps to explain related information. For a Microsoft Visual Basic. This article refers to the. Diagnostics and describes how to use the Debug and the Trace classes. These classes are available in the. NET Framework. You can use these classes to provide information about the performance of an application either during application development, or after deployment to production.
These classes are only one part of the instrumentation features that are available in the. The following list outlines the recommended hardware, software, network infrastructure, and service packs that you need:. The steps in the Create a Sample with the Debug Class section demonstrate how to create a console application that uses the Debug class to provide information about the program execution. When the program is run, you can use methods of the Debug class to produce messages that help you to monitor the program execution sequence, to detect malfunctions, or to provide performance measurement information.
The sample code uses the WriteLine method to produce a message that is followed by a line terminator. When you use this method to produce a message, each message appears on a separate line in the Output window. When you use the Assert method of the Debug class, the Output window displays a message only if a specified condition evaluates to false.
The message also appears in a modal dialog box to the user. The dialog box includes the message, the project name, and the Debug. Assert statement number. The dialog box also includes the following three command buttons:. Ignore: The application proceeds. The user must click one of these buttons before the application can continue. You can also direct output from the Debug class to destinations other than the Output window. The Debug class has a Listeners collection that includes Listener objects.
Each Listener object monitors Debug output and directs the output to a specified target. Each Listener in the Listener collection receives any output that the Debug class generates. You can specify the target for a TextWriterTraceListener class through its constructor. Class1 is created in Visual Studio. To initialize variables to contain information about a product, add the following declaration statements to Main method:. Specify the message that the class produces as the first input parameter of the WriteLine method.
For readability, use the Indent method to indent subsequent messages in the Output window:. You can also use the WriteLine method to display the namespace and the class name for an existent object.
For example, the following code displays the System.
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