Renders an Apache ECharts bar chart using the shared ECharts base renderer.
ECHARTSBAR — set as ReportType in def_report.
def Render(self, Param1="", Param2="", Param3="") -> str:
Inherited from ObjReportEchartsbase. Param1, Param2, and Param3 are forwarded in the RPC payload for SQL token substitution. Returns an HTML string containing a styled panel and an ECharts initialisation script.
Uses the Apache ECharts JS library. Sets self.Type = "bar" which drives the default series type passed to the cartesian option builder in ObjReportEchartsbase. The series type can be overridden or mixed via the series_types key in _Options.