如何动态添加图表中的系列？需要参考!! [英] HOW TO ADD SERIES IN CHART DYNAMICALLY ? NEED REFERENCES !!

问题描述

前端（根据存储过程中的动态upadte，我还要在首页上还有什么）



---------- -------------------------------------------------- -------------------------------------------------- ------------------------------

Front end( what else i have to right in the front page according to dynamic upadte from stored procedure )

--------------------------------------------------------------------------------------------------------------------------------------------

<asp:Chart ID="chtCampaignHits" runat="server" BackColor="76, 125, 126"

BorderDashStyle="Solid" BackSecondaryColor="White" BackGradientStyle="DiagonalLeft"

BorderWidth="2px" BorderColor="#1A3B69">
<BorderSkin SkinStyle="Emboss" />

<ChartAreas>
<asp:ChartArea Name="MainChartArea" BorderColor="64, 64, 64, 64" BorderDashStyle="Solid"

BackSecondaryColor="White" BackColor="64, 165, 191, 228" ShadowColor="Transparent"

BackGradientStyle="TopBottom">
</asp:ChartArea>
</ChartAreas>
</asp:Chart>

.CS FILE (DYNAMIC UPDATE FROM STORED PROCEDURE)

-------------------------------------------------------------


if (dt.Rows.Count != 0)
{

//var v = (from row in dt.AsEnumerable()
// select row.Field<Int64>("Campaigntitle").ToString()).Distinct<string>(); priviouly this code

var v = (from Rows in dt.AsEnumerable()
select Rows.Field<string>("Campaigntitle").ToString()).Distinct<string>();

foreach (string s in v)
{
Console.WriteLine(s);

foreach (DataRow row in dt.Rows)
{
if (row.HasErrors)
{
Console.WriteLine(row.RowError);
}
}
// SHOULD I USE ROWFILTER OR ITS OPTIONAL.
dt.DefaultView.RowFilter = "count=" + s;  //TILL THIS THE CODE RUNNING FIND. WHEN COMES TO ADD SERIES IN GOING TO CATCH EXCEPTION. NEED  YOUR HELP !!
chtCampaignHits.Series[s].Enabled = true;
chtCampaignHits.Series.Add(new Series(s));
chtCampaignHits.Series[s].Label = s;

chtCampaignHits.Series[s].ChartArea = "MainChartArea";
chtCampaignHits.Series[s].ChartType = SeriesChartType.Line; //priviously chat was SeriesChartType.Spline;
chtCampaignHits.Series[s].BorderWidth = 3;
//this was above priviouly
chtCampaignHits.Series[s].Points.DataBindXY(dt.DefaultView, "Campaigntitle", dt.DefaultView, "hits");

}
chtCampaignHits.Legends.Add("Legend1");

chtCampaignHits.Legends["Legend1"].Enabled = true;
//chtCampaignHits.Legends["Legend1"].Alignment = System.Drawing.StringAlignment.Near;
chtCampaignHits.Legends["Legend1"].LegendStyle = LegendStyle.Row;
chtCampaignHits.Legends["Legend1"].Docking = Docking.Bottom;
chtCampaignHits.Legends["Legend1"].BackColor = System.Drawing.Color.FromName("#4C7D7E");
chtCampaignHits.Legends["Legend1"].BackGradientStyle = GradientStyle.DiagonalLeft;
}
}
catch (Exception)
{

Response.Write("Error in FillChartInfo");
}

推荐答案

您正在尝试启用系列，然后将其添加到图表中

Move行

You are trying to enable a series before adding it to chart
Move the line

chtCampaignHits.Series[s].Enabled = true;

next to

chtCampaignHits.Series.Add(new Series(s));

您的代码应为

Your code should be

chtCampaignHits.Series.Add(new Series(s));
chtCampaignHits.Series[s].Enabled = true;
chtCampaignHits.Series[s].Label = s;

更新回答

Updated answer

Your code should be 
chtCampaignHits.Series.Add(s);
chtCampaignHits.Series[s].Enabled = true;
chtCampaignHits.Series[s].Label = s;

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