> For the complete documentation index, see [llms.txt](https://docs-siticoneframework.gitbook.io/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-siticoneframework.gitbook.io/home/net-framework-or-net-core-ui/data-formatting-and-display/siticone-humanizerfloat/validation-features.md).

# Validation Features

## Overview

The Validation Features of the SiticoneHumanizerFloat control provide properties to ensure that the numeric value being processed falls within acceptable limits. By setting a MinimumValue and/or a MaximumValue, developers can guarantee that the value conforms to expected ranges, thereby preventing errors or unexpected behavior during humanization. These validations are applied automatically when assigning a new value to the control.

***

### Key Points

<table><thead><tr><th width="166">Item</th><th>Description</th></tr></thead><tbody><tr><td>MinimumValue</td><td>Sets the lower bound for acceptable numeric values (set to null if no minimum is required).</td></tr><tr><td>MaximumValue</td><td>Sets the upper bound for acceptable numeric values (set to null if no maximum is required).</td></tr></tbody></table>

***

### Best Practices

<table><thead><tr><th width="256">Aspect</th><th>Recommendation</th></tr></thead><tbody><tr><td>Define Clear Limits</td><td>Always specify realistic MinimumValue and MaximumValue values based on the application's requirements.</td></tr><tr><td>Use null for Flexibility</td><td>Set MinimumValue or MaximumValue to null if there is no constraint in one direction, ensuring flexibility.</td></tr><tr><td>Validate Before Assignment</td><td>Consider validating the input value against the defined limits before setting the Value property programmatically.</td></tr></tbody></table>

***

### Common Pitfalls

<table><thead><tr><th width="228">Issue</th><th>Description</th><th>Resolution</th></tr></thead><tbody><tr><td>Overly Restrictive Limits</td><td>Setting the minimum or maximum value too narrowly may cause legitimate numbers to be rejected.</td><td>Review and adjust the constraints based on realistic data expectations.</td></tr><tr><td>Inconsistent Range Definitions</td><td>Defining a MinimumValue that is greater than the MaximumValue triggers an exception.</td><td>Ensure that MinimumValue is always less than MaximumValue when both are set.</td></tr><tr><td>Missing Null Checks</td><td>Not accounting for null values when comparing the current value against MinimumValue or MaximumValue.</td><td>Implement null checks in the logic that interacts with these properties to avoid runtime exceptions.</td></tr></tbody></table>

***

### Usage Scenarios

<table><thead><tr><th width="272">Scenario</th><th>Description</th></tr></thead><tbody><tr><td>Data Input Validation</td><td>Use the validation features to ensure that user-entered numerical values fall within an acceptable range.</td></tr><tr><td>Business Rule Enforcement</td><td>Enforce business logic by setting boundaries (e.g., minimum order amounts, maximum allowable discounts).</td></tr><tr><td>Safe Display of Measurements</td><td>Prevent erroneous data display in applications such as scientific instruments by validating measurement ranges.</td></tr></tbody></table>

#### Code Example: Configuring Validation Features

```csharp
// Create an instance of the humanizer control
var humanizer = new SiticoneHumanizerFloat();

// Set a minimum allowed value (e.g., 0 for non-negative numbers)
humanizer.MinimumValue = 0;

// Set a maximum allowed value (e.g., 1000000 for financial applications)
humanizer.MaximumValue = 1000000;

// Set a valid value within the specified range
humanizer.Value = 500000;

// Display the humanized value
Console.WriteLine("Validated Value: " + humanizer.Humanized);
```

***

### Real Life Usage Scenarios

<table><thead><tr><th width="211">Scenario</th><th>Description</th></tr></thead><tbody><tr><td>Financial Applications</td><td>Ensure that monetary values do not drop below zero or exceed expected transaction limits.</td></tr><tr><td>Scientific Data Entry</td><td>Validate that sensor or measurement data remains within a safe and meaningful operational range.</td></tr><tr><td>User Input in Forms</td><td>Guarantee that user inputs, such as age or quantity fields, are within realistic and defined boundaries.</td></tr></tbody></table>

#### Code Example: User Input Validation

```csharp
try
{
    // Assume we are processing user input from a form
    double userInput = Convert.ToDouble(Console.ReadLine());

    // Configure validation constraints
    humanizer.MinimumValue = 1;
    humanizer.MaximumValue = 100;

    // Set the value; if the input is out of range, an exception will be thrown
    humanizer.Value = userInput;

    Console.WriteLine("Validated Input: " + humanizer.Humanized);
}
catch (ArgumentOutOfRangeException ex)
{
    Console.WriteLine("Input is out of the allowed range: " + ex.Message);
}
catch (Exception ex)
{
    Console.WriteLine("An error occurred: " + ex.Message);
}
```

***

### Troubleshooting Tips

<table><thead><tr><th width="221">Issue</th><th>Possible Cause</th><th>Suggested Action</th></tr></thead><tbody><tr><td>Exception when setting MinimumValue/MaximumValue</td><td>Setting MinimumValue greater than MaximumValue or vice versa.</td><td>Ensure that MinimumValue is set to a value lower than MaximumValue, or set one to null if not needed.</td></tr><tr><td>Value Out Of Range Exception</td><td>The current Value is not within the set boundaries.</td><td>Validate the input data before assignment or adjust the MinimumValue/MaximumValue settings to match expected values.</td></tr><tr><td>Unhandled Exceptions</td><td>Direct assignment of invalid data without proper error handling.</td><td>Implement try-catch blocks to handle exceptions gracefully and provide user-friendly error messages.</td></tr></tbody></table>

***

### Review

<table><thead><tr><th width="189">Aspect</th><th>Review Notes</th></tr></thead><tbody><tr><td>Robustness</td><td>The validation features provide a simple yet effective way to enforce numeric constraints.</td></tr><tr><td>Ease of Integration</td><td>Easily integrate these features by setting MinimumValue and MaximumValue directly on the control instance.</td></tr><tr><td>Potential Pitfalls</td><td>Misconfiguration of range boundaries can lead to runtime exceptions; careful planning is required.</td></tr><tr><td>Extensibility</td><td>The design allows for future enhancements, such as custom error messages or dynamic range adjustments.</td></tr></tbody></table>

***

### Summary

<table><thead><tr><th width="271">Summary Point</th><th>Description</th></tr></thead><tbody><tr><td>Enforced Numeric Constraints</td><td>Developers can ensure that the value processed by the control is within specified minimum and maximum boundaries.</td></tr><tr><td>Simple Configuration</td><td>The MinimumValue and MaximumValue properties offer an easy-to-use method for data validation in various scenarios.</td></tr><tr><td>Enhanced Data Integrity</td><td>By validating numeric input, the control helps maintain consistency and integrity in application data.</td></tr></tbody></table>

***

### Additional Considerations

<table><thead><tr><th width="246">Consideration</th><th>Description</th></tr></thead><tbody><tr><td>Consistent Data Validation</td><td>Ensure that other parts of your application that accept numeric input are synchronized with these constraints.</td></tr><tr><td>User Feedback</td><td>Consider providing immediate user feedback when an input value violates the validation limits.</td></tr><tr><td>Testing</td><td>Thoroughly test edge cases (e.g., exactly at the limits, just below, just above) to ensure the validation behaves as expected.</td></tr></tbody></table>

#### Code Example: Comprehensive Exception Handling

```csharp
try
{
    // Attempt to set a value that violates the minimum and maximum constraints
    humanizer.MinimumValue = 10;
    humanizer.MaximumValue = 100;
    humanizer.Value = 5; // This will trigger an exception as it is below the minimum
}
catch (ArgumentOutOfRangeException ex)
{
    Console.WriteLine("Validation Error: " + ex.Message);
}
catch (Exception ex)
{
    Console.WriteLine("An unexpected error occurred: " + ex.Message);
}
```

***

By leveraging the Validation Features of the SiticoneHumanizerFloat control, developers can enforce strict numeric boundaries, ensuring that the values processed are within expected limits and enhancing the overall robustness and integrity of their .NET WinForms applications.


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