Question

我通过System.Web.UI.DataVisualization.Charting在MS Visual Studio 2010中使用Chart组件。我在列图中遇到问题，我希望将标签显示为百分比。该图表显示了整个一年中每个月的决策数量（正 - 绿色，负 - 红色，中性 - 蓝色）。麻烦的是，如果我使用以下命令...

ChartDecisionDyn.Series["Positive"].IsValueShownAsLabel = true;
ChartDecisionDyn.Series["Positive"].Label = "#PERCENT";

......我没有得到百分比结果。结果显示全年某些月份/正面决策数量的正面决策数量，但我希望的结果是特定月份的正面决策数量/某个月的总决策数量。有没有人有任何建议？在此先感谢您的帮助。

您可以查看我的图表here

的详细信息

Answer 1

看不到图表的图片，但我这样做了：

<asp:Chart ID="Chart1" runat="server" DataSourceID="ObjectDataSource1" Width="451px">
    <Series>
        <asp:Series Name="Series1" XValueMember="Month" YValueMembers="Percentage"></asp:Series>
    </Series>
    <ChartAreas>
        <asp:ChartArea Name="ChartArea1">
            <AxisY>
                <LabelStyle Format="P0" />
            </AxisY>
        </asp:ChartArea>
    </ChartAreas>
</asp:Chart>

或者这个：

    Chart1.ChartAreas[0].AxisY.LabelStyle.Format = "P0";

得到了这个：

enter image description here

编辑：这个怎么样：

<asp:Chart ID="Chart1" runat="server" DataSourceID="ObjectDataSource1" Width="451px">
    <Series>
        <asp:Series Name="Series1" XValueMember="Month" YValueMembers="Percentage" IsValueShownAsLabel="True" LabelFormat="F2"></asp:Series>
    </Series>
    <ChartAreas>
        <asp:ChartArea Name="ChartArea1">
            <AxisY>
                <MajorGrid LineColor="DarkGray" LineDashStyle="Dot" />
                <LabelStyle Format="P0" />
            </AxisY>
            <AxisX>
                <MajorGrid Enabled="False" />
            </AxisX>
        </asp:ChartArea>
    </ChartAreas>
</asp:Chart>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" DataObjectTypeName="WebApplication9.DataPoint" DeleteMethod="Remove" InsertMethod="Add" SelectMethod="ToArray" TypeName="WebApplication9.DataPointList" UpdateMethod="Add"></asp:ObjectDataSource>

enter image description here

编辑2：添加多个系列。

<asp:Chart ID="Chart1" runat="server" DataSourceID="ObjectDataSource1" Width="499px">
    <Series>
        <asp:Series Name="Percent" XValueMember="Month" YValueMembers="Percent" IsValueShownAsLabel="True" LabelFormat="P0" Legend="Legend1" YAxisType="Secondary"></asp:Series>
        <asp:Series ChartArea="ChartArea1" IsValueShownAsLabel="True" LabelFormat="N0" Legend="Legend1" Name="Positive" XValueMember="Month" YValueMembers="Positive">
        </asp:Series>
        <asp:Series ChartArea="ChartArea1" IsValueShownAsLabel="True" LabelFormat="N0" Legend="Legend1" Name="Neutral" XValueMember="Month" YValueMembers="Neutral">
        </asp:Series>
        <asp:Series ChartArea="ChartArea1" IsValueShownAsLabel="True" LabelFormat="F0" Legend="Legend1" Name="Negative" XValueMember="Month" YValueMembers="Negative">
        </asp:Series>
    </Series>
    <ChartAreas>
        <asp:ChartArea Name="ChartArea1">
            <AxisY>
                <MajorGrid LineColor="DarkGray" LineDashStyle="Dot" />
            </AxisY>
            <AxisX>
                <MajorGrid Enabled="False" />
            </AxisX>
            <AxisY2>
                <MajorGrid LineColor="DarkGray" LineDashStyle="Dot" />
                <LabelStyle Format="P0" />
            </AxisY2>
        </asp:ChartArea>
    </ChartAreas>
    <Legends>
        <asp:Legend Alignment="Center" Docking="Top" Name="Legend1">
        </asp:Legend>
    </Legends>
</asp:Chart>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" DataObjectTypeName="WebApplication11.DecisionPoint" DeleteMethod="Remove" InsertMethod="Add" SelectMethod="ToArray" TypeName="WebApplication11.DecisionPointList"></asp:ObjectDataSource>

enter image description here

Answer 2

使用ChartDecisionDyn.Series["Positive"].LabelFormat等ChartDecisionDyn.Series["Positive"].LabelFormat="#.00′ %'";

Answer 3

我的理解是这些选择是相互排斥的。第二个将覆盖第一个。如何设置IsValueShownAsLabel=true并设置正值=positive/(positive+negative+neutral)*100

的值

或设置系列Label="#LABEL"，当添加点的值时，还要将点的标签添加为positive/(positive+negative+neutral)*100作为字符串

图表系列标签为百分比

3 个答案: