Label on the Chart using Microsoft Chart controls
I am creating a 3d chart using Microsoft Chart controls. Here is the image:
I want to show the point on the top of each bar graph. Like for Exam 1 on top of bar chart it should show 2 (as in 2 points) etc.
Here is the code:
private void BindData() {
var exams = new List<Exam>()
{
new Exam() { Name = "Exam 1", Point = 10 },
new Exam() { Name = "Exam 2", Point = 12 },
new Exam() { Name = "Exam 3", Point = 15 },
new Exam() { Name = "Exam 4", Point = 2 }
};
var series = ExamsChart.Series["ExamSeries"];
series.YValueMembers = "Point";
series.XValueMember = "Name";
//series.MarkerStyle = System.Web.UI.DataVisualization.Charting.MarkerStyle.Circle;
//series.MarkerSize = 20;
//series.LegendText = "hellow";
开发者_运维技巧 //series.Label = "something";
var chartAreas = ExamsChart.ChartAreas["ChartArea1"];
ExamsChart.DataSource = exams;
ExamsChart.DataBind();
}
and here is the html code:
<asp:Chart ID="ExamsChart" Width="600" Height="320" runat="server">
<Titles>
<asp:Title Text="Exam Report" />
</Titles>
<Series>
<asp:Series Name="ExamSeries" ChartType="Column">
</asp:Series>
</Series>
<ChartAreas>
<asp:ChartArea Name="ChartArea1">
<Area3DStyle Enable3D="true" WallWidth="10" />
</asp:ChartArea>
</ChartAreas>
</asp:Chart>
UPDATE:
Here is the answer:
foreach (var exam in exams) {
var point = new DataPoint();
point.SetValueXY(exam.Name, exam.Point);
point.Label = exam.Name;
series.Points.Add(point);
}
Directly from the MS chart samples:
// Show data points values as labels
chart1.Series["Series1"].IsValueShownAsLabel = true;
// Set data point label
chart1.Series["Series1"].Points[2].Label = "My Point Label\nLabel Line #2";
精彩评论