<system.diagnostics> Element
Specifies trace listeners that collect, store, and route messages and the level where a trace switch is set.
<configuration>
<system.diagnostics>
<system.diagnostics>
</system.diagnostics>
Child Elements
| Element | Description |
|---|---|
| <assert> | Specifies whether to display a message box when you call the Debug.Assert method; also specifies the name of the file to write messages to. |
| <switches> | Contains trace switches and the levels where the trace switches are set. |
| <trace> | Contains listeners that collect, store, and route tracing messages. |
Example
The following example shows how to embed a trace switch and a trace listener inside the <system.diagnostics> element. The General trace switch is set to the TraceLevel.Error level. The trace listener myListener creates a file called MyListener.log and writes the output to the file.
<configuration>
<system.diagnostics>
<switches>
<add name="General" value="4" />
</switches>
<trace autoflush="true" indentsize="2">
<listeners>
<add name="myListener"
type="System.Diagnostics.TextWriterTraceListener, Version, Culture, PublicKeyToken"
initializeData="MyListener.log"/>
</listeners>
</trace>
</system.diagnostics>
</configuration>
Configuration File
This element can be used in the machine configuration file (Machine.config) and the application configuration file.