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AddTrend - method of the PmgTrendViewer object

Description:
Creates a new object of the tvTrend type.

The object is located at the end of the trends container and whenever it is accessible by the Trends method.

Syntax:
Object AddTrend(String sID, String sName)
Parameters:
sID(String) Trend identifier (maximal length is 64 characters)
sName(String) User name of trend
Return values:
Returns the created tvTrend object.

If the creation of the object failed, then returns value null for JavaScript or Nothing pro VBScript.

Nothing value can be tested by VBScript Is operator.
Note:

The maximal number of trends is 255.

If the parameters are not entered or they are set as empty strings (""), then new tvTrend object with default parameters sID and sName will be created.

New object with preset parameters can be created also on the "Trends" tab.

Example:
JavaScriptVBScriptSelect and copy to clipboard

var oTView = pMe;
var oTrend = oTView.AddTrend("t1", "Temperature");
if (oTrend)
//.. ok
else
//.. error
PROMOTIC 9.0.15 SCADA system documentation - MICROSYS, spol. s r.o.

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