Class ChangeEventArgs<T>

Represents the event arguments for the value change event in the NumericTextBox component.

Inheritance

System.Object

ChangeEventArgs<T>

Namespace: Syncfusion.Blazor.Inputs

Assembly: Syncfusion.Blazor.dll

Syntax

public class ChangeEventArgs<T> : Object

Type Parameters

Name	Description
T	The type of the value that changed in the NumericTextBox.

Remarks

This class provides detailed information about the change event, including the previous and current values, whether the change was triggered by user interaction, and the original event arguments.

Examples

<SfNumericTextBox @bind-Value="@numericValue" ValueChange="OnValueChange">
</SfNumericTextBox>

@code {
    private double numericValue = 10;

    private void OnValueChange(ChangeEventArgs<double> args)
    {
        Console.WriteLine($"Previous Value: {args.PreviousValue}");
        Console.WriteLine($"Current Value: {args.Value}");
        Console.WriteLine($"Is User Interaction: {args.IsInteracted}");
    }
}

Constructors

ChangeEventArgs()

Declaration

public ChangeEventArgs()

Properties

Event

Gets or sets the original event arguments that triggered the change event.

Declaration

public EventArgs Event { get; set; }

Property Value

Type	Description
System.EventArgs	An System.EventArgs object containing the original event information, or null if not available.

Remarks

This property provides access to the underlying event arguments from the browser's change event. It can be used to access additional event details if needed.

IsInteracted

Gets or sets a value indicating whether the change was triggered by user interaction.

Declaration

public bool IsInteracted { get; set; }

Property Value

Type	Description
System.Boolean	true if the value change was caused by user interaction (such as typing or clicking spin buttons); otherwise, false if changed programmatically.

Remarks

This property helps distinguish between programmatic value changes and user-initiated changes, which can be useful for implementing different behaviors based on the source of the change.

Name

Gets or sets the name of the event.

Declaration

public string Name { get; set; }

Property Value

Type	Description
System.String	A System.String value representing the event name, or null if not specified.

Remarks

This property typically contains the name of the specific event that was triggered, such as "ValueChange" for value change events.

PreviousValue

Gets or sets the previous value of the NumericTextBox before the change occurred.

Declaration

public T PreviousValue { get; set; }

Property Value

Type	Description
T	The previous value of type T, or null if there was no previous value.

Remarks

This property allows you to compare the old and new values to determine the magnitude of the change or to implement undo functionality.

Value

Gets or sets the current value of the NumericTextBox after the change.

Declaration

public T Value { get; set; }

Property Value

Type	Description
T	The current value of type T, or null if the value is empty or invalid.

Remarks

This property contains the new value after the change event has occurred. The value type depends on the generic type parameter specified for the NumericTextBox.