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Set the background alpha value.

 

 

 

Prototype :

 

void SetBackgroundAlpha

(

        integer BackgroundAlpha

)

 

 

 

Arguments :

 

 

 

 

Example :

 

var ChartRootUnit = This.GetChartRootUnit();

var ChartShapeCnt = ChartRootUnit.GetShapeCount();

for(i = 0; i < ChartShapeCnt; i++) {

  var ChartShape = ChartRootUnit.GetShape(i);

  var ChartPieceCnt = ChartShape.GetPieceCount();

  for(j = 0; j < ChartPieceCnt; j++) {

     var ChartPiece = ChartShape.GetPiece(j);

     var ChartPieceLabel = ChartPiece.GetLabel();

     if(ChartPieceLabel != null) {

        ChartPieceLabel.SetBackgroundAlpha(30);

     }

  }

}

 

 

 

Available Events :

 

OnBind, OnPostChartBuild

For the object returned by GetChartLabel function of a chart, the function can be called only in OnBind event, and for the object returned by GetLabel function of a ChartPiece, the function can be called only in OnPostChartBuild event.