使用open flash chart的BarGlass时遇到的问题

在使用BarGlass（玻璃柱状图）时要注意在chart.AddElement(bar);之后设置chart.Y_Axis属性若不设置图表什么都不会显示。

如下是正确的调用代码：

                BarGlass bar  =   new  BarGlass();
                XAxisLabels xLabels  =   new  XAxisLabels();
                List < string >  xLabelTexts  =   new  List < string > ();
                
                List < BarGlassValue >  values  =   new  List < BarGlassValue > ();
                 for  ( int  i  =   0 ; i  <   20 ; i ++ )
                {
                    BarGlassValue bgv  =   new  BarGlassValue( 1 + random.Next( 0 ,i + 5 ));
                    bgv.Colour  =   " #ff0000 " ;
                    xLabelTexts.Add( " 第 "   +  i  +   " 个 " );
                    values.Add(bgv);
                }
                bar.Values  =  values;
                xLabels.Values  =  xLabelTexts;
                XAxis xAxis  =   new  XAxis();
                xAxis.Labels  =  xLabels;
                chart.X_Axis  =  xAxis;
                chart.AddElement(bar);
                YAxis yaxis  =   new  YAxis();
                chart.Y_Axis  =  yaxis;
                chart.Y_Axis.SetRange( 0 ,  24 ,  3 );
                e.Graph  =  chart;

相关资源：

http://teethgrinder.co.uk/open-flash-chart-2/

http://xiao-yifang.blogspot.com/search/label/openflashchart

http://monstersgotmy.net/post/OpenFlash-Chart-Fixing-Open-Source.aspx