---
description: >-
  This feature allows you to manage visual sections on the gauge by adding,
  removing, or clearing GaugeSection objects, which visually indicate specific
  value ranges on the gauge.
---

# Section Management

## Overview

The Section Management feature exposes public methods in the SiticoneGaugeClock control that let you dynamically add sections to the gauge, remove individual sections, or clear all sections at once. These sections, typically represented by colored arcs or segments on the gauge, help draw attention to important ranges—such as safe or warning zones—in your application's data. This functionality is particularly useful when you need to visually differentiate parts of the gauge to indicate thresholds or status levels.

***

### Feature Settings and Customization

The table below outlines the available methods for Section Management, describing their functions, default behaviors, and sample usage snippets.

| Method                              | Description                                                                                        | Default Behavior                                                            | Usage Example                                                                                   |
| ----------------------------------- | -------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- |
| AddSection(GaugeSection section)    | Adds a new section to the gauge. The section object specifies a start value, end value, and color. | Adds section if valid; throws exception if section is null or out-of-range. | `gauge.AddSection(new GaugeSection { StartValue = 20f, EndValue = 40f, Color = Color.Green });` |
| RemoveSection(GaugeSection section) | Removes the specified section from the gauge if it exists.                                         | Removes the section if found; does nothing if not found.                    | `gauge.RemoveSection(mySection);`                                                               |
| ClearSections()                     | Clears all sections from the gauge, removing any visual segmentation.                              | Empties the internal list of sections and triggers a redraw.                | `gauge.ClearSections();`                                                                        |

_Note: The GaugeSection class (as referenced in the code) should encapsulate properties such as StartValue, EndValue, and Color to define each section. Ensure that section values lie within the gauge's MinValue and MaxValue._

***

### Key Points

The table below summarizes the critical aspects of the Section Management feature.

<table><thead><tr><th width="277">Aspect</th><th>Details</th></tr></thead><tbody><tr><td>Dynamic Visual Segmentation</td><td>Enables real-time visual updates by adding or removing sections to highlight specific value ranges.</td></tr><tr><td>Flexible Configuration</td><td>Developers can define multiple sections with distinct colors and value ranges to suit different application needs.</td></tr><tr><td>Immediate Feedback</td><td>Changes are applied immediately via Invalidate() calls, ensuring that the gauge updates its display in real time.</td></tr></tbody></table>

***

### Best Practices

The following table outlines best practices for using the Section Management feature effectively.

| Practice                | Explanation                                                                                                             | Code Example                                                               |
| ----------------------- | ----------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------- |
| Validate Section Ranges | Ensure that the StartValue and EndValue for each section fall within the gauge's MinValue and MaxValue to avoid errors. | \`if(section.StartValue < gauge.MinValue                                   |
| Use Meaningful Colors   | Choose section colors that clearly distinguish each range, enhancing user interpretation of data.                       | `new GaugeSection { Color = Color.Red } // For warning or critical ranges` |
| Remove Unused Sections  | Periodically clear or remove sections that are no longer relevant to maintain a clean visual interface.                 | `gauge.ClearSections();`                                                   |
| Test With Varying Data  | Validate the appearance of sections under different gauge values to ensure that they correctly indicate their ranges.   | Add sections for different ranges and simulate gauge value changes.        |

***

### Common Pitfalls

Avoid the following pitfalls when managing sections on the gauge.

| Pitfall                            | Description                                                                                                  | Recommendation                                                                   |
| ---------------------------------- | ------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------- |
| Adding Out-of-Range Sections       | Defining a section with StartValue or EndValue outside the gauge’s allowed range can cause errors.           | Always check that section values fall between gauge.MinValue and gauge.MaxValue. |
| Neglecting to Redraw After Changes | Failing to invalidate the control after adding or removing sections may result in the changes not appearing. | Call Invalidate() or ForceRedraw() after section modifications.                  |
| Overcrowding the Gauge             | Adding too many sections can clutter the gauge, making it difficult to interpret the displayed data.         | Limit the number of sections and ensure each has a clear purpose.                |

***

### Usage Scenarios

The following table outlines typical scenarios where Section Management customization is beneficial.

| Scenario                  | Description                                                                                             | Sample Code                                                                                      |
| ------------------------- | ------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------ |
| Alert Indicators          | Highlight specific ranges (e.g., safe, caution, danger) on the gauge to alert users to critical values. | `gauge.AddSection(new GaugeSection { StartValue = 80f, EndValue = 100f, Color = Color.Red });`   |
| Performance Metrics       | Visually segment the gauge into performance zones, such as low, medium, and high utilization ranges.    | Add multiple sections with varying colors based on performance thresholds.                       |
| Custom Data Visualization | Use sections to demarcate customized data ranges for specialized analytical tools.                      | `gauge.AddSection(new GaugeSection { StartValue = 25f, EndValue = 50f, Color = Color.Yellow });` |

***

### Real Life Usage Scenarios

The table below presents real-world examples demonstrating how Section Management can be applied.

<table><thead><tr><th width="221">Real Life Scenario</th><th>Description</th><th>Code Example</th></tr></thead><tbody><tr><td>Automotive Dashboard</td><td>A speedometer gauge that shows normal, warning, and danger speed zones using different colored sections.</td><td><code>gauge.AddSection(new GaugeSection { StartValue = 0f, EndValue = 60f, Color = Color.Green });gauge.AddSection(new GaugeSection { StartValue = 60f, EndValue = 90f, Color = Color.Yellow });gauge.AddSection(new GaugeSection { StartValue = 90f, EndValue = 120f, Color = Color.Red });</code></td></tr><tr><td>Industrial Control Panel</td><td>Gauges indicating pressure or temperature ranges with clearly demarcated safe and unsafe zones.</td><td>Define sections for safe operating ranges and highlight any dangerous levels.</td></tr><tr><td>Medical Monitoring Equipment</td><td>A heart-rate monitor that visually distinguishes between normal and abnormal heart rates through colored sections.</td><td><code>gauge.AddSection(new GaugeSection { StartValue = 50f, EndValue = 100f, Color = Color.LightGreen });gauge.AddSection(new GaugeSection { StartValue = 100f, EndValue = 150f, Color = Color.Orange });</code></td></tr></tbody></table>

***

### Troubleshooting Tips

If you experience issues with section management, consider the following troubleshooting tips.

| Issue                             | Potential Cause                                                                                         | Suggested Resolution                                                                                     |
| --------------------------------- | ------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
| Sections Not Displaying           | Sections may not appear if they are not added correctly or if the control is not invalidated afterward. | Verify that AddSection() is called with valid parameters, then call Invalidate() to refresh the display. |
| Application Crashes or Exceptions | Out-of-range values for a section can cause exceptions during rendering.                                | Validate that section StartValue and EndValue are within the gauge's allowed range before adding.        |
| Overlapping or Cluttered Sections | Too many sections or sections with overlapping ranges can create a cluttered visual display.            | Limit the number of sections and ensure that their value ranges do not overlap unnecessarily.            |

***

### Integration Example

Below is a complete code sample demonstrating how to integrate and customize the Section Management settings in a WinForms application:

```csharp
using System;
using System.Drawing;
using System.Windows.Forms;
using SiticoneNetFrameworkUI; // Ensure the namespace is correct

namespace GaugeDemoApp
{
    // Assume GaugeSection is defined with properties: StartValue, EndValue, and Color.
    public class GaugeSection
    {
        public float StartValue { get; set; }
        public float EndValue { get; set; }
        public Color Color { get; set; }
    }

    public class MainForm : Form
    {
        private SiticoneGaugeClock gauge;

        public MainForm()
        {
            InitializeComponent();
            ConfigureSections();
        }

        private void InitializeComponent()
        {
            this.gauge = new SiticoneGaugeClock();
            this.SuspendLayout();
            // 
            // gauge
            // 
            this.gauge.Location = new Point(30, 30);
            this.gauge.Size = new Size(300, 300);
            // Gauge configuration for demonstration
            this.gauge.MinValue = 0f;
            this.gauge.MaxValue = 120f;
            this.gauge.Value = 70f;
            // 
            // MainForm
            // 
            this.ClientSize = new Size(360, 360);
            this.Controls.Add(this.gauge);
            this.Text = "Gauge Demo - Section Management";
            this.ResumeLayout(false);
        }

        private void ConfigureSections()
        {
            // Create sections to indicate different operating ranges.
            GaugeSection safeSection = new GaugeSection
            {
                StartValue = 0f,
                EndValue = 60f,
                Color = Color.Green
            };

            GaugeSection cautionSection = new GaugeSection
            {
                StartValue = 60f,
                EndValue = 90f,
                Color = Color.Yellow
            };

            GaugeSection dangerSection = new GaugeSection
            {
                StartValue = 90f,
                EndValue = 120f,
                Color = Color.Red
            };

            // Add the sections to the gauge.
            gauge.AddSection(safeSection);
            gauge.AddSection(cautionSection);
            gauge.AddSection(dangerSection);
        }

        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new MainForm());
        }
    }
}
```

In this example, the gauge is set to represent a range from 0 to 120. Three sections are added—green for the safe zone, yellow for caution, and red for danger—to visually indicate the different value ranges on the gauge.

***

### Review

The Section Management feature provides an effective means to visually segment the gauge into distinct value ranges. By using methods to add, remove, or clear sections, developers can dynamically adjust the gauge's appearance to highlight critical thresholds. This enhances the overall readability and functionality of the gauge, especially in data-rich applications.

***

### Summary

The Section Management feature enables developers to define, add, and manage colored sections on the gauge to highlight specific ranges of values. Through methods such as AddSection, RemoveSection, and ClearSections, you can dynamically update the gauge’s visual segmentation to suit various application needs. Detailed tables, best practices, usage scenarios, troubleshooting tips, and a complete integration example are provided to ensure easy implementation and effective customization in your WinForms applications.

***

Additional sections such as Key Points, Best Practices, and Real Life Usage Scenarios offer further guidance for optimizing section management and ensuring that your gauge’s segmentation effectively communicates critical data ranges.
