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Line Chart ToolTip Problem

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Chart (Obsolete)
This is a migrated thread and some comments may be shown as answers.
Mike
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Rank 2
Mike asked on 11 Jun 2008, 04:35 PM
I have 2 charts on my web page (see attached code blocks).

I can set a ToolTip and URL for each point in each series.

This works fine if I only have one chart on my page.

If I have two charts, then only the second charts ToolTips and URL links work.

Any idea what I am doing wrong?

Any help appreciated.

Regards,

Paul.

using System;  
using System.Data;  
using System.Configuration;  
using System.Collections;  
using System.Drawing;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using Telerik.Charting;  
using Telerik.WebControls;  
 
public partial class Default5 : System.Web.UI.Page  
{  
    protected void Page_Load(object sender, EventArgs e)  
    {  
        if (!Page.IsPostBack)  
        {  
            CreateChart(RadChart1);  
            CreateChart(RadChart2);  
 
        }  
    }  
 
    private void CreateChart(RadChart radChart)  
    {  
        const double hourStep = 1 / 24.0;  
        const double minuteStep = hourStep / 60;  
        const double fiveMinuteStep = minuteStep * 5;  
 
        double startTime = new DateTime(2008, 1, 1, 19, 0, 0, 0).ToOADate();  
        double endTime = new DateTime(2008, 1, 2, 7, 0, 0, 0).ToOADate();  
 
        radChart.ChartTitle.TextBlock.Text = "Trend Chart";  
 
        radChart.PlotArea.XAxis.AddRange(startTime, endTime, hourStep);  
        radChart.PlotArea.YAxis.AutoScale = false;  
        radChart.PlotArea.YAxis.MaxValue = 70;  
        radChart.PlotArea.YAxis.MinValue = -70;  
 
        radChart.PlotArea.YAxis.AxisLabel.TextBlock.Text = "UOM";  
        radChart.PlotArea.YAxis.AxisLabel.TextBlock.Visible = true;  
 
        radChart.PlotArea.XAxis.AutoScale = false;  
 
        Random r = new Random();  
        ChartSeries s = radChart.CreateSeries(radChart.ID + "Series 1", Color.Empty, Color.Empty, ChartSeriesType.Line);  
 
        Int32 testResultId = 0;  
        for (double currentTime = startTime; currentTime < endTime; currentTime += fiveMinuteStep)  
        {  
            testResultId += 1;  
            ChartSeriesItem item = new ChartSeriesItem();  
            item.XValue = currentTime + (r.NextDouble() - 0.5) * fiveMinuteStep;  
            item.YValue = 0 + (r.NextDouble() - 0.5) * 90;  
 
            item.Label.ActiveRegion.Tooltip = "value=" + item.YValue + ", time=" + DateTime.FromOADate(item.XValue).ToShortTimeString();  
            item.Label.ActiveRegion.Url = "http://localhost/ChartTest/Default2.aspx?TestResultId=" + testResultId;  
            item.Label.TextBlock.Text = " ";  
            s.Appearance.LineSeriesAppearance.Color = Color.Blue;  
 
 
            s.Items.Add(item);  
        }  
 
        s = radChart.CreateSeries(radChart.ID + "Series 2", Color.Empty, Color.Empty, ChartSeriesType.Line);  
 
        testResultId = 0;  
        for (double currentTime = startTime; currentTime < endTime; currentTime += fiveMinuteStep)  
        {  
            testResultId += 1;  
            ChartSeriesItem item = new ChartSeriesItem();  
            item.XValue = currentTime + (r.NextDouble() - 0.5) * fiveMinuteStep;  
            item.YValue = 0 + (r.NextDouble() - 0.5) * 90;  
 
            item.Label.ActiveRegion.Tooltip = "value=" + item.YValue + ", time=" + DateTime.FromOADate(item.XValue).ToShortTimeString();  
            item.Label.ActiveRegion.Url = "http://localhost/ChartTest/Default2.aspx?TestResultId=" + testResultId;  
            item.Label.TextBlock.Text = " ";  
            s.Appearance.LineSeriesAppearance.Color = Color.Green;  
 
            s.Items.Add(item);  
        }  
 
    }  
 
}  
 
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="Default5" %> 
 
<%@ Register Assembly="RadChart.Net2" Namespace="Telerik.WebControls" TagPrefix="radC" %> 
<%@ Register Assembly="RadChart.Net2" Namespace="Telerik.Charting" TagPrefix="radC" %> 
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
 
<html xmlns="http://www.w3.org/1999/xhtml" > 
<head runat="server">  
    <title>Untitled Page</title> 
</head> 
<body> 
    <form id="form1" runat="server">  
    <div> 
        <radC:RadChart ID="RadChart1" runat="server"  Width="1082px" Height="807px" DefaultType="Line" > 
            <ChartTitle> 
                <TextBlock Text="Trend Chart">  
                </TextBlock> 
                <Appearance> 
                    <FillStyle MainColor="Azure">  
                    </FillStyle> 
                </Appearance> 
            </ChartTitle> 
            <Appearance TextQuality="AntiAlias">  
                <FillStyle MainColor="Azure">  
                </FillStyle> 
            </Appearance> 
            <PlotArea> 
                <Appearance Dimensions-Margins="10%, 10%, 10%, 10%" > 
                    <FillStyle MainColor="Azure" SecondColor="">  
                    </FillStyle> 
                </Appearance> 
                <XAxis LayoutMode="Inside" AutoScale="False">  
                <AxisLabel> 
                    <TextBlock Text="Time" Visible="True">  
                    </TextBlock> 
                </AxisLabel> 
                    <Appearance ValueFormat="ShortTime">  
                        <LabelAppearance RotationAngle="45" Position-AlignedPosition="Top">                          
                        </LabelAppearance> 
                        <MajorGridLines Visible="False" /> 
                    </Appearance> 
                    <Items> 
                        <radC:ChartAxisItem> 
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="1">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="2">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="3">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="4">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="5">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="6">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="7">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                    </Items> 
                </XAxis> 
                <YAxis IsZeroBased="False" MaxValue="100" Step="10">  
                </YAxis> 
                <DataTable> 
                    <Appearance RenderType="PlotAreaRelative" TextHorizontalAlign="Center" TextVerticalAlign="Middle">  
                    </Appearance> 
                </DataTable> 
                <YAxis2 MinValue="1">  
                </YAxis2> 
                <EmptySeriesMessage Visible="True">  
                </EmptySeriesMessage> 
            </PlotArea> 
            <Legend> 
                <Appearance Position-AlignedPosition="None">  
                </Appearance> 
            </Legend> 
        </radC:RadChart> 
      
        <radC:RadChart ID="RadChart2" runat="server"  Width="1082px" Height="807px" DefaultType="Line" > 
            <ChartTitle> 
                <TextBlock Text="Trend Chart">  
                </TextBlock> 
                <Appearance> 
                    <FillStyle MainColor="Azure">  
                    </FillStyle> 
                </Appearance> 
            </ChartTitle> 
            <Appearance TextQuality="AntiAlias">  
                <FillStyle MainColor="Azure">  
                </FillStyle> 
            </Appearance> 
            <PlotArea> 
                <Appearance Dimensions-Margins="10%, 10%, 10%, 10%" > 
                    <FillStyle MainColor="Azure" SecondColor="">  
                    </FillStyle> 
                </Appearance> 
                <XAxis LayoutMode="Inside" AutoScale="False">  
                <AxisLabel> 
                    <TextBlock Text="Time" Visible="True">  
                    </TextBlock> 
                </AxisLabel> 
                    <Appearance ValueFormat="ShortTime">  
                        <LabelAppearance RotationAngle="45" Position-AlignedPosition="Top">                          
                        </LabelAppearance> 
                        <MajorGridLines Visible="False" /> 
                    </Appearance> 
                    <Items> 
                        <radC:ChartAxisItem> 
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="1">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="2">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="3">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="4">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="5">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="6">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                        <radC:ChartAxisItem Value="7">  
                            <Appearance Position-AlignedPosition="Top" RotationAngle="45">  
                            </Appearance> 
                        </radC:ChartAxisItem> 
                    </Items> 
                </XAxis> 
                <YAxis IsZeroBased="False" MaxValue="100" Step="10">  
                </YAxis> 
                <DataTable> 
                    <Appearance RenderType="PlotAreaRelative" TextHorizontalAlign="Center" TextVerticalAlign="Middle">  
                    </Appearance> 
                </DataTable> 
                <YAxis2 MinValue="1">  
                </YAxis2> 
                <EmptySeriesMessage Visible="True">  
                </EmptySeriesMessage> 
            </PlotArea> 
            <Legend> 
                <Appearance Position-AlignedPosition="None">  
                </Appearance> 
            </Legend> 
        </radC:RadChart> 
      
    </div> 
    </form> 
</body> 
</html> 
 

1 Answer, 1 is accepted

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Giuseppe
Telerik team
answered on 12 Jun 2008, 10:22 AM
Hi Mike,

Indeed there was such problem with older versions of the control -- we would suggest you to update to the latest version of RadChart and you should not experience the erroneous behavior any more.


Greetings,
Manuel
the Telerik team

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Tags
Chart (Obsolete)
Asked by
Mike
Top achievements
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Answers by
Giuseppe
Telerik team
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