Promotic

GetTimeByIndex - method of the tvPoints object

Description:
Returns the time of the nIndex-th data point. Specified value of the index depends on the nIndexType parameter and refers either to the whole buffer or only to the visible part of the buffer.
Syntax:
Date GetTimeByIndex(Long nIndex, Long nIndexType)
Parameters:
nIndex(Long) Index to the buffer array
>=0 - Index to the buffer array
-2 - The time of the latest data point is returned
nIndexType(Long) Required type of the returned index
0 - Index refers to the beginning of the buffer
1 - Index refers to the first data point that is displayed by the buffer viewer
Return values:
The method returns the time.
If no point has been found then the method returns: null for JavaScript or Empty pro VBScript (it can be tested by the Pm.IsValid method).
Note:
This method is also functional in Web panels.
See also:
Example:
JavaScriptVBScriptSelect and copy to clipboard

var oTView = pMe.Items("../TrendView");
var oPoints = oTView.Trends("t1").Points;
var nTime = oPoints.GetTimeByIndex(5, 0);
if (Pm.IsValid(nTime))
{
Pm.Debug(nTime);
}
PROMOTIC 9.0.23 SCADA system documentation MICROSYS, spol. s r.o.

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