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 subobject
PmaWebDir 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.
Warning:
For the widget to work properly in a 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:
| Object name | Name (identifier) of the Pmg object. It is used to obtain 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 chars), empty string, spaces and the first character must not be a number. |
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Preconfiguration:
- 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. | |
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| Name of the PmaWebDir subobject | Name of the PmaWebDir subobject |
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| Name of the widget object | Name of the widget object |
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