今天看了一个帖子，说的是图表，自己就也写了个，根据网上提供的事例，我用的是fpchart，但当我把数据源指定给它的时候，却不能运行，说fpchart不能序列化。代码如下：
前台：
<FarPoint:FpChart ID="FpChart1" runat="server" Height="320px" Width="320px">
<Model>
<LabelAreas>
<FarPoint abelArea AlignmentX="0.5" Location="0.5, 0.02" />
</LabelAreas>
<LegendAreas>
<FarPointegendArea AlignmentX="1" AlignmentY="0.5" Location="0.98, 0.5" />
</LegendAreas>
< lotAreas>
<FarPoint:YPlotArea Elevation="15" GlobalAmbientLight="50,50,50" Location="0.2, 0.2"
Rotation="-20" Size="0.6, 0.6">
<YAxes>
<FarPoint:ValueAxis>
</FarPoint:ValueAxis>
</YAxes>
<Series>
<FarPoint:BarSeries />
</Series>
<Lights>
<FarPoint irectionalLight AmbientColor="128,128,128" DiffuseColor="128, 128, 128"
DirectionX="10" DirectionY="20" DirectionZ="30" />
</Lights>
</FarPoint:YPlotArea>
</PlotAreas>
</Model>
</FarPoint:FpChart>
后台代码：
//设置数据源
DataTable dt = new DataTable("Test");
DataRow dr = default(System.Data.DataRow);
dt.Columns.Add("名称");
dt.Columns.Add("数量");
dr = dt.NewRow();
dr[0] = "电器";
dr[1] = 0.2;
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = "服装";
dr[1] = 0.5;
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = "家具";
dr[1] = 0.3;
dt.Rows.Add(dr);
//设置 BarSeries
FarPoint.Web.Chart.BarSeries series = new FarPoint.Web.Chart.BarSeries();
//设置图表展示数据
series.Values.DataSource = dt;
series.Values.DataField = dt.Columns[1].ColumnName;
//使用多样化颜色显示
series.VaryColors = true;
//设置 X 轴显示名称
series.CategoryNames.Add("电器");
series.CategoryNames.Add("服装");
series.CategoryNames.Add("家具");
series.LabelVisible = true;
//设置 YPlotArea
FarPoint.Web.Chart.YPlotArea plotArea = new FarPoint.Web.Chart.YPlotArea();
//设置显示单位为 20%
//plotArea.YAxes[0].DisplayUnits = 0.5;
//设置 Y 轴显示为 Percentage
plotArea.YAxes[0].LabelNumberFormat = "00.0%";
//设置 YPlotArea 显示位置
plotArea.Location = new System.Drawing.PointF(0.2F, 0.2F);
//设置 YPlotArea 大小
plotArea.Size = new System.Drawing.SizeF(0.6F, 0.6F);
plotArea.Series.Add(series);
//设置图例
LegendArea legend = new LegendArea();
legend.Location = new PointF(0.98f, 0.5f);
legend.AlignmentX = 1.0f;
legend.AlignmentY = 0.5f;
//设置图表标签
LabelArea label = new LabelArea();
label.Text = "产品分布";
label.Location = new PointF(0.5f, 0.02f);
label.AlignmentX = 0.5f;
label.AlignmentY = 0.0f;
FarPoint.Web.Chart.ChartModel model = new FarPoint.Web.Chart.ChartModel();
model.PlotAreas.Add(plotArea);
model.LegendAreas.Add(legend);
model.LabelAreas.Add(label);
FpChart1.EnableViewState = true;
FpChart1.ViewType = ChartViewType.View3D;
FpChart1.Model = model; |
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