绑定RadHtmlChart不起作用 [英] Binding RadHtmlChart Not work

问题描述

我正在使用控制RadHtmlChart我以编程方式绑定它



这是我的代码的一部分和图片中的数据不显示我不知道为什么PLZ帮助我我使用gridview确保我有数据表中的数据，它的工作原理







string req =从QTSW_DATA1选择time_tag，[ain_sebou | niveau]其中time_tag在'15 / 01/2015 10:49:59'AND之间'15 / 02/2015 10:49:59';

连接器（）;

if（DS.Tables.Contains（TRChart））

{

DS.Tables.Remove（TRChart）;

}

SqlDataAdapter da = new SqlDataAdapter（req， con）;

da.Fill（DS，TRChart）;

Deconnecter（）;

RChart.DataSource = DS.Tables [ TRChart];

RChart.DataBind（）;



ScatterLineSeries SL = new ScatterLineSeries（）;

SL.DataFieldX =time_tag;

SL.DataFieldY =ain_sebou | niveau;

RChart。 PlotArea.Series.Add（SL）;

RChart.PlotArea.XAxis.TitleAppearance.Text =Date Time;

RChart.PlotArea.YAxis.TitleAppearance.Text = AIn Sebou的价值;



//这里我绑定Gridview



Gridview1.DataSource = DS.Tables [TRChart] ;

Gridview1.DataBind（）;



http://www.mediafire.com/view/yavzc9gza1vll1d/Graphe.JPG [ ^ ]



plzz我需要帮助

i'm using control RadHtmlChart wich i bind it programaticly

this is part of my code and in the pic the data don't display i dont know why plz help me i'm using gridview to make sure if i have data in datatable and it works



string req = " select time_tag,[ain_sebou|niveau] from QTSW_DATA1 where time_tag between '15/01/2015 10:49:59' AND '15/02/2015 10:49:59'";
Connecter();
if (DS.Tables.Contains("TRChart"))
{
DS.Tables.Remove("TRChart");
}
SqlDataAdapter da = new SqlDataAdapter(req, con);
da.Fill(DS, "TRChart");
Deconnecter();
RChart.DataSource = DS.Tables["TRChart"];
RChart.DataBind();

ScatterLineSeries SL = new ScatterLineSeries();
SL.DataFieldX = "time_tag";
SL.DataFieldY = "ain_sebou|niveau";
RChart.PlotArea.Series.Add(SL);
RChart.PlotArea.XAxis.TitleAppearance.Text = "Date Time";
RChart.PlotArea.YAxis.TitleAppearance.Text = "Value Of AIn Sebou";

// here i bind Gridview

Gridview1.DataSource = DS.Tables["TRChart"];
Gridview1.DataBind();

http://www.mediafire.com/view/yavzc9gza1vll1d/Graphe.JPG[^]

plzz i need help

推荐答案

我认为问题是你在调用DataBind后将系列添加到图表中。请尝试执行以下操作：

I believe the issue is that you're adding the series to the chart after you've called DataBind. Try doing the following instead:

Deconnecter();

ScatterLineSeries SL = new ScatterLineSeries();
SL.DataFieldX = "time_tag";
SL.DataFieldY = "ain_sebou|niveau";
RChart.PlotArea.Series.Add(SL);
RChart.PlotArea.XAxis.TitleAppearance.Text = "Date Time";
RChart.PlotArea.YAxis.TitleAppearance.Text = "Value Of AIn Sebou"; 

RChart.DataSource = DS.Tables["TRChart"];
RChart.DataBind();

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