我有一个带有饼系列的控件。有没有办法在 Series 的 DataBound 事件中检索每个数据点的饼图颜色？任何建议表示赞赏。
我需要它的原因是我需要为每个数据点显示大量其他数据。我不想把它放在图例中，因为它占用了太多空间，并且将来可能会显示很多其他数据。
<asp:Chart ID="TRsClosedByDevelopers" runat="server" Height="892px"
BorderlineDashStyle="Solid" BorderlineWidth="2" BorderSkin-SkinStyle="Emboss"
BorderlineColor="BlueViolet" Width="980px" Palette="Pastel"
style="margin-left:-8px; margin-top:-8px;" EnableViewState="True"
SuppressExceptions="True" ondatabound="TRsClosedByDevelopers_DataBound">
<Titles>
<asp:Title BackColor="LightSteelBlue" BackGradientStyle="VerticalCenter"
BorderColor="SteelBlue" BorderWidth="0"
Font="Microsoft Sans Serif, 15.75pt, style=Bold" ForeColor="DarkSlateGray"
IsDockedInsideChartArea="False" Name="PieChartTitle"
Text="TR's Closed in the past ">
</asp:Title>
</Titles>
<Series>
<asp:Series Name="Testing1"
Font="Microsoft Sans Serif, 9.75pt, style=Bold" BorderColor="0, 0, 192"
ChartType="Pie" LabelForeColor="DarkSlateGray"
CustomProperties="MinimumRelativePieSize=50, CollectedSliceExploded=True, CollectedLegendText=OTHER, CollectedColor=ActiveBorder, CollectedLabel=OTHER (#VALY) (#PERCENT{P2}), PieLabelStyle=Outside, CollectedThreshold=1"
YValueType="Int32" Label="#VALX"
XValueType="String">
<SmartLabelStyle CalloutLineAnchorCapStyle="Diamond"
AllowOutsidePlotArea="Yes" />
<EmptyPointStyle IsValueShownAsLabel="false" IsVisibleInLegend="false"
BorderWidth="0" CustomProperties="PieLabelStyle=Disabled" MarkerBorderWidth="0"
MarkerSize="0" />
</asp:Series>
</Series>
<ChartAreas>
<asp:ChartArea Name="ChartArea2">
<Area3DStyle Enable3D="true" Inclination="0" />
</asp:ChartArea>
</ChartAreas>
<BorderSkin SkinStyle="Emboss" />
</asp:Chart>
</td>
<td>
<table cellspacing="2" cellpadding="2" style="width:100%; margin-left:-2px;">
<tr style="background-color:#cccccc; font-size:large;">
<th style="width:30px;">
</th>
<th align="left" style="width:260px;">
Developer
</th>
<th>
TR's Closed
</th>
</tr>
</table>
<asp:Repeater ID="TRsClosedTbl" runat="server" OnItemDataBound="TRsClosedTbl_ItemDataBound">
<HeaderTemplate>
<table cellspacing="2" cellpadding="2" style="width:100%; margin-left:-2px;" id="SummaryTbl">
</HeaderTemplate>
<ItemTemplate>
<tr style="background-color:#eeeeee; height:24px; font-size:large;" class="normalCell">
<td style="width:30px;" runat="server" id="ColorCell"> </td>
<td style="width:260px;"><%#((DataRowView)Container.DataItem)["Developer"]%></td>
<td align="right" style="width:50px"><%#((DataRowView)Container.DataItem)["TRsClosed"]%></td>
<td align="right"><%#String.Format("{0:N2}", Math.Round(Convert.ToDouble(((DataRowView)Container.DataItem)["TRsClosed"])/Convert.ToDouble(srv_nTotalTRsClosed) * 100, 2))%> %</td>
</tr>
</ItemTemplate>
<AlternatingItemTemplate>
<tr style="background-color:#eeeeff; height:24px; font-size:large;" class="normalCell">
<td style="width:30px;" runat="server" id="ColorCell"> </td>
<td style="width:260px;"><%#((DataRowView)Container.DataItem)["Developer"]%></td>
<td align="right" style="width:50px"><%#((DataRowView)Container.DataItem)["TRsClosed"]%></td>
<td align="right"><%#String.Format("{0:N2}", Math.Round(Convert.ToDouble(((DataRowView)Container.DataItem)["TRsClosed"])/Convert.ToDouble(srv_nTotalTRsClosed) * 100, 2))%> %</td>
</tr>
</AlternatingItemTemplate>
<FooterTemplate>
<tr style="background-color:#EEFFCC; height:24px; font-size:large;" class="normalCell">
<td align="right" colspan="2">TOTAL:</td>
<td align="right"><%=srv_nTotalTRsClosed%></td>
<td> </td>
</tr>
</table>
</FooterTemplate>
</asp:Repeater>
</td>
</tr>
</table>
文件后面的代码是：
public partial class ER_RecentTRsClosedPieChart : System.Web.UI.Page
{
public DataAccessLayer DAL;
public DataSet srv_TRsClosedByDevDS;
public string srv_sToday;
public int srv_nNumDays = 0;
public int srv_nTotalTRsClosed = 0;
private int index = 0;
protected void Page_Load(object sender, EventArgs e)
{
DAL = new DataAccessLayer();
srv_TRsClosedByDevDS = new DataSet();
srv_sToday = "09/14/2012";//DateTime.Now.ToString("MM/dd/yyyy");
if (!int.TryParse(Request.QueryString["NumDays"], out srv_nNumDays))
srv_nNumDays = 7;
srv_TRsClosedByDevDS = DAL.CRM_RequestMQEx(srv_nNumDays, 0, 0, 0, 0, srv_sToday, "", "", "", "", 13);
srv_nTotalTRsClosed = SumColumn(srv_TRsClosedByDevDS.Tables[0], "TRsClosed");
TRsClosedByDevelopers.Titles[0].Text += srv_nNumDays.ToString() + " Days (TOTAL: " + srv_nTotalTRsClosed.ToString() + ")";
TRsClosedByDevelopers.Series["Testing1"].Points.DataBind(srv_TRsClosedByDevDS.Tables[0].AsEnumerable(), "Developer", "TRsClosed", string.Empty);
srv_TRsClosedByDevDS.Tables[0].Columns.Add("PieColor");
TRsClosedTbl.DataSource = srv_TRsClosedByDevDS.Tables[0];
TRsClosedTbl.DataBind();
}
public int SumColumn(DataTable dt, string columnName)
{
return (from c in dt.AsEnumerable()
where !c.IsNull(columnName)
select c.Field<int>(columnName)
).Sum();
}
protected void TRsClosedTbl_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
}
protected void TRsClosedByDevelopers_DataBound(object sender, EventArgs e)
{
string r;
string g;
string b;
for (int i = 0; i < TRsClosedByDevelopers.Series["Testing1"].Points.Count; i++)
{
string dev = TRsClosedByDevelopers.Series["Testing1"].Points[i].Color.ToString();
//Here, I Want to add the rendered Pie Slice color to the DataColumn "PieColor" of each row.
//r = TRsClosedByDevelopers.Series["Testing1"].Points[i].MarkerColor.R.ToString();
//g = TRsClosedByDevelopers.Series["Testing1"].Points[i].MarkerColor.G.ToString();
//b = TRsClosedByDevelopers.Series["Testing1"].Points[i].MarkerColor.B.ToString();
}
}
}