Log In
Home
Support
Demos
Documentation
Blogs
Training
Webinars
[Expand]General Information
[Expand]WinForms Controls
[Collapse]ASP.NET Controls and MVC Extensions
 [Expand]Prerequisites
 [Expand]What's Installed
 [Expand]Common Concepts
 [Collapse]ASP.NET WebForms Controls
  [Expand]Reporting
  [Collapse]Chart Control
   [Expand]Product Information
   [Expand]Getting Started
   [Collapse]Fundamentals
    [Collapse]Charting Basics
      Understanding a Data Point, Its Argument and Its Value
      Understanding Series and Series Views
      Understanding a Diagram
      Understanding Axes and Panes
    [Expand]Series Views
    [Expand]Professional Charting
   [Expand]Concepts
   [Expand]Design-Time Features
   [Expand]Visual Elements
   [Expand]Examples
  [Expand]Grid View
  [Expand]Card View
  [Expand]Vertical Grid
  [Expand]Spreadsheet
  [Expand]Rich Text Editor
  [Expand]Image and Data Browsing
  [Expand]Docking and Popups
  [Expand]Site Navigation and Layout
  [Expand]File Management
  [Expand]Multi-Use Site Controls
  [Expand]Scheduler
  [Expand]HTML Editor
  [Expand]Pivot Grid
  [Expand]Tree List
  [Expand]Gauges
  [Expand]Data Editors
  [Expand]Spell Checker
  [Expand]Query Builder
 [Expand]ASP.NET MVC Extensions
 [Expand]Localization
 [Expand]Redistribution and Deployment
  Get More Help
 [Expand]API Reference
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Document Server
[Expand]Reporting
[Expand]Report Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]CodeRush
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

Understanding a Data Point, Its Argument and Its Value

This topic provides general information about a chart's data point, and explains its argument and value(s).

A chart's most fundamental element is the data point. A group of data points represents a single series. Points reside in the Series.Points collection, and no series is displayed until it has at least one data point specified.

Because the ASP.NET Chart Control supports numerous series view types, which represent and organize data in different ways, the visual representation of a data point differs from one view to another. For details on this, refer to the Understanding Series and Series Views topic.

Each data point must have one argument and at least one value that corresponds to it. In general, the pairing of an argument and its value is represented on a diagram's axes as their X and Y coordinates, respectively, as illustrated in the following image.

Additional values are required by certain view types (e.g., Financial and Bubble series). They are visually represented differently, depending on the view type.

A chart's Legend helps you identify different chart elements such as series, the constant line and strips. In some situations, the chart's legend can display distinct data points that belong to the same series, rather than the name of the series itself. For details on this, refer to Legend Overview.

To learn about the ways data points can be created, refer to the Manually Add Points to a Series topic.

For more information, refer to Series Points.

Expanded See Also

How would you rate this topic?​​​​​​​