Share via

asp.net chart stacked column tooltip

Hema Ramachandran 176 Reputation points
2023-08-10T13:02:40.9566667+00:00

I have a asp.net chart. It has two series. How can I show the x and y values on the tooltips of the seires?

ASP.NET
ASP.NET
A set of technologies in the .NET Framework for building web applications and XML web services.
3,312 questions
0 comments

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Lan Huang-MSFT 26,516 Reputation points Microsoft Vendor
    2023-08-11T03:26:28.1766667+00:00

    Hi @Hema Ramachandran,

    You can set the tooltip in the Series like so:

                <Series>
                <asp:Series Name="Series1" ChartType="Column" ToolTip=" (X,Y):(#VALX,#VALY)">
                </asp:Series>
            </Series>

    Demo

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm8.aspx.cs" Inherits="WebForm731.WebForm8" %>

<%@ Register Assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Web.UI.DataVisualization.Charting" TagPrefix="asp" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Chart ID="Chart1" runat="server" Width="500" Height="500">
            <Series>
                <asp:Series Name="Series1" ChartType="Column" ToolTip=" (X,Y):(#VALX,#VALY)">
                </asp:Series>
            </Series>
            <Series>
                <asp:Series Name="Series2" ChartType="Column" ToolTip=" (X,Y):(#VALX,#VALY)">
                </asp:Series>
            </Series>
            <ChartAreas>
                <asp:ChartArea Name="ChartArea1"></asp:ChartArea>
            </ChartAreas>
        </asp:Chart>

    </form>
</body>
</html>


      protected void Page_Load(object sender, EventArgs e)
        {
            using (SqlConnection cnn = new SqlConnection(ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString))
            {
                cnn.Open();
                SqlDataAdapter da = new SqlDataAdapter("select Id,name,disc from Table1", cnn);
                DataTable dt = new DataTable();
                da.Fill(dt);
                Chart1.DataSource = dt;
                Chart1.Series[0].XValueMember = "Id";
                Chart1.Series[0].YValueMembers = "name";
                Chart1.Series[1].XValueMember = "Id";
                Chart1.Series[1].YValueMembers = "disc";
                Chart1.DataBind();
            }

        }

    enter image description here

    Best regards,

    Lan Huang

    If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

  2. Vinicius Climaco 0 Reputation points MVP
    2023-08-11T11:55:00.7333333+00:00

    Hello!!!

    To show the X and Y values in the tooltips of a series in an ASP.NET chart, you can use a ToolTip property of the series to customize the displayed content. Here is an example of how you can do this:

    Suppose you have a graph with two series, Series1 and Series2. You can use the following code to show X and Y values in tooltips:

    using System;
using System.Web.UI.DataVisualization.Charting;

namespace ChartTooltipExample
{
    public partial class ChartPage : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            // Exemplo de dados fictícios para as séries
            double[] xValues = { 1, 2, 3, 4, 5 };
            double[] yValues1 = { 10, 15, 7, 25, 12 };
            double[] yValues2 = { 5, 8, 12, 18, 10 };

            // Configuração da primeira série
            Series series1 = new Series("Series1");
            series1.ChartType = SeriesChartType.Line;
            series1.Points.DataBindXY(xValues, yValues1);
            series1.ToolTip = "#VALX, #VALY"; // Mostra valor X e valor Y nas dicas de ferramentas

            // Configuração da segunda série
            Series series2 = new Series("Series2");
            series2.ChartType = SeriesChartType.Line;
            series2.Points.DataBindXY(xValues, yValues2);
            series2.ToolTip = "#VALX, #VALY"; // Mostra valor X e valor Y nas dicas de ferramentas

            // Adiciona as séries ao gráfico
            Chart1.Series.Add(series1);
            Chart1.Series.Add(series2);
        }
    }
}

    In this example, the ToolTip property is set to #VALX, #VALY, which are placeholders that represent the X and Y values of the corresponding data point in the series. When the user hovers over a point on the graph, the tooltip will display the X and Y values for that point.

    Keep in mind that specific details may vary depending on your ASP.NET project setup and the versions of libraries you are using. Be sure to adjust the code as needed to suit your environment.

    If my answer has helped in any way, I ask you to like and report.

    Thank you and good luck!

    0 comments