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Preconfiguration "Widget Chart - Bar graph"

This preconfiguration can be activated when creating a new Pmg object and is included in the group: "/ Widgets / Widgets - Charts".
Creates the PmgFrame object configured as - Widget Chart - Bar graph.

The preconfiguration creates a PmgFrame object in the selected panel, a new PmaWebDir subobject and copies the files Charts.js and the license text file Chart_Licence.txt into the Resource folder in the application.

The link in the PmgFrame object refers to the html page widget.htm in the PmaWebDir object. This request invokes the widget method in the PmaWebDir.onPageModify event. This creates an html page with a link to the chart.js widget library and configures the parameters for the chart to be displayed. At the same time, it requests (at the specified period) the data for displaying, which is provided by the "data" method.

It is necessary to modify the script in the "data" method so it provides the required application data to be displayed.

Properties, type and parameters for the displayed graph are modified in the "widget" method and their syntax is available on the widget Web pages:
This widget (chart.js) was licensed as MIT at the time this preconfiguration was created. It means that it is unrestricted and freely distributable.
For the widget to work properly in the local application, it is necessary to have WebView2 (Edge) installed in Windows OS.
The component is called Microsoft Edge WebView2 Runtime version Evergreen.
Its use must be enabled in the application's INI file.
See Web browser (/#glob/webbrowser)
These configurators can be set before the preconfiguration is created:
The name of created objectName (identifier) of the Pmg object. It is used for obtaining the Pmg object by the PmgObject.Items method.
This configurator sets the initial value of the Name property.
The maximum name length is 30 characters.
This is a system name, so it must contain only alphanumeric and must not contain any diacritics (i.e. national dependent characters), empty string, spaces and the first character must not be a number.
- Creates a PmgFrame object
- Creates the PmaWebDir subobject in the given PmaPanel object
- Inserts the widget files "chart.js" and "Chart_Licence.txt" into the Resource folder.
The preconfiguration requires support for Microsoft Edge WebView2 Runtime.
And in the INI file of the application it is necessary to enter the WebView2=1 key into the [Promotic] section.
Name of the PmaWebDir subobjectName of the PmaWebDir subobject
Widget fileWidget file insertion type
Insert file
Use the existing file
Overwrite the existing file
Insert the file with different name
Name of the widget objectName of the widget object

Pm9.00.22: Created
PROMOTIC 9.0.28 SCADA system documentation MICROSYS, spol. s r.o.

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