Emits a warning trace message to Trace History.

S# Implementation
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public static void TraceWarning( 
   string message 
)

Parameters

message

Type: string

Remarks
To see a list of trace messages, select Tools | Diagnostics | View Trace History.

Typically, the Trace History dialog is configured to display warning and error messages only. You may have to modify the filter settings and/or your trace configuration options. For more information, see Troubleshooting.

Example
This example illustrates how to detect a data Quality problem with a data point. When the quality of DataPid:PID.Pv is not GOOD, the code emits a trace message and displays a message dialog.

Since GET automatically triggers the script to be reexecuted every time the data point value changes, the qualityIsBad flag will be reevaluated on each point change.

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 var pt = GET("DataPid:PID1.Pv");
 var qualityIsBad = pt.Quality < 192;
 
 if (qualityIsBad)
 {
   var msg = string.Format("{0} has BAD quality.", pt.PointName);
   WV.TraceWarning(msg);
   WV.MsgBox(msg, pt.PointName, Severity.Warning);
 }
See Also