# RadioButtonExtensions

Namespace: **Wisej.Web.Markup**

Assembly: **Wisej.Framework** (4.0.0.0)

Adds [fluent markup](https://learn.microsoft.com/en-us/dotnet/communitytoolkit/maui/markup/markup) extension methods to the [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md) class.

{% tabs %}
{% tab title="C#" %}

```csharp
public class RadioButtonExtensions
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Class RadioButtonExtensions
```

{% endtab %}
{% endtabs %}

## Methods

### ![](/files/lIX317sDtMTZJBi9oSIx) Appearance\<TRadioButton>(radioButton, appearance)

Sets the Appearance property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                     |
| ---------------- | ------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md). |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the Appearance property.                                                      |
| **appearance**   | [Appearance](/api/wisej.web/enumerations/wisej.web.appearance.md)                          | The [Appearance](#appearance``1) to set for the radio button.                                                   |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated Appearance property.

This method allows you to specify the appearance of the radio button.

```csharp

myRadioButton.Appearance(Appearance.Button);

```

### ![](/files/lIX317sDtMTZJBi9oSIx) AutoCheck\<TRadioButton>(radioButton, value)

Sets the AutoCheck property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                     |
| ---------------- | ------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md). |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the AutoCheck property.                                                       |
| **value**        | [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean)                            | A boolean indicating whether the radio button is automatically checked when clicked.                            |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated AutoCheck property.

This method allows you to enable or disable automatic checking of the radio button when it is clicked.

```csharp

myRadioButton.AutoCheck(false);

```

### ![](/files/lIX317sDtMTZJBi9oSIx) AutoToolTip\<TRadioButton>(radioButton, value)

Sets the AutoToolTip property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                                                      |
| ---------------- | ------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md) and have an AutoToolTip property. |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the AutoToolTip property.                                                                                      |
| **value**        | [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean)                            | A boolean indicating whether tooltips are automatically shown for the radio button.                                                              |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated AutoToolTip property.

This method allows you to enable or disable automatic tooltips for the radio button.

```csharp

myRadioButton.AutoToolTip(true);

```

### ![](/files/lIX317sDtMTZJBi9oSIx) CheckAlign\<TRadioButton>(radioButton, value)

Sets the CheckAlign property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                                        |
| ---------------- | ------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).                    |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the CheckAlign property.                                                                         |
| **value**        | [ContentAlignment](https://docs.microsoft.com/dotnet/api/system.drawing.contentalignment)  | The [ContentAlignment](https://docs.microsoft.com/dotnet/api/system.drawing.contentalignment) to set for the check mark alignment. |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated CheckAlign property.

This method allows you to specify the alignment of the check mark within the radio button.

```csharp

myRadioButton.CheckAlign(ContentAlignment.MiddleRight);

```

### ![](/files/lIX317sDtMTZJBi9oSIx) Checked\<TRadioButton>(radioButton, value)

Sets the Checked property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                     |
| ---------------- | ------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md). |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the Checked property.                                                         |
| **value**        | [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean)                            | A boolean indicating whether the radio button is checked.                                                       |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated Checked property.

This method allows you to specify whether the radio button is checked.

```csharp

myRadioButton.Checked(true);

```

### ![](/files/lIX317sDtMTZJBi9oSIx) CheckedForeColor\<TRadioButton>(radioButton, color)

Sets the CheckedForeColor property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                                                          |
| ---------------- | ------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md) and have a CheckedForeColor property. |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the CheckedForeColor property.                                                                                     |
| **color**        | [Color](https://docs.microsoft.com/dotnet/api/system.drawing.color)                        | The [Color](https://docs.microsoft.com/dotnet/api/system.drawing.color) to set for the checked state text color.                                     |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated CheckedForeColor property.

This method allows you to specify the text color when the radio button is checked.

```csharp

myRadioButton.CheckedForeColor(Color.Red);

```

### ![](/files/lIX317sDtMTZJBi9oSIx) Invalid\<TRadioButton>(radioButton, value)

Sets the Invalid property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                                                  |
| ---------------- | ------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md) and have an Invalid property. |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the Invalid property.                                                                                      |
| **value**        | [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean)                            | A boolean indicating whether the radio button is in an invalid state.                                                                        |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated Invalid property.

This method allows you to specify whether the radio button is in an invalid state.

```csharp

myRadioButton.Invalid(true);

```

### ![](/files/lIX317sDtMTZJBi9oSIx) InvalidMessage\<TRadioButton>(radioButton, message)

Sets the InvalidMessage property of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                                                         |
| ---------------- | ------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md) and have an InvalidMessage property. |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button for which to set the InvalidMessage property.                                                                                      |
| **message**      | [String](https://docs.microsoft.com/dotnet/api/system.string)                              | The message to set for the invalid state.                                                                                                           |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the updated InvalidMessage property.

This method allows you to specify a custom message to display when the radio button is in an invalid state.

```csharp

myRadioButton.InvalidMessage("This option is not valid.");

```

### ![](/files/lIX317sDtMTZJBi9oSIx) OnAppearanceChanged\<TRadioButton>(radioButton, action)

Attaches an event handler for the AppearanceChanged event of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                     |
| ---------------- | ------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md). |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button to attach the event handler to.                                                                |
| **action**       | [Action\<TRadioButton>](https://docs.microsoft.com/dotnet/api/system.action-1)             | An action to execute when the appearance changes.                                                               |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the attached AppearanceChanged event handler.

This method allows you to execute a custom action whenever the appearance of the radio button changes.

```csharp

myRadioButton.OnAppearanceChanged(rb =>
{
AlertBox.Show("Appearance changed!");
});

```

### ![](/files/lIX317sDtMTZJBi9oSIx) OnCheckedChanged\<TRadioButton>(radioButton, action)

Attaches an event handler for the CheckedChanged event of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                     |
| ---------------- | ------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------- |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md). |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button to attach the event handler to.                                                                |
| **action**       | [Action\<TRadioButton>](https://docs.microsoft.com/dotnet/api/system.action-1)             | An action to execute when the checked state changes.                                                            |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the attached CheckedChanged event handler.

This method allows you to execute a custom action whenever the checked state of the radio button changes.

```csharp

myRadioButton.OnCheckedChanged(rb =>
{
AlertBox.Show("Checked state changed!");
});

```

### ![](/files/lIX317sDtMTZJBi9oSIx) OnReadOnlyChanged\<TRadioButton>(radioButton, action)

Attaches an event handler for the ReadOnlyChanged event of the specified [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md).

| Parameter        | Type                                                                                       | Description                                                                                                                                      |
| ---------------- | ------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **TRadioButton** |                                                                                            | The type of the radio button, must inherit from [RadioButton](/api/wisej.web/buttons/wisej.web.radiobutton.md) and have a ReadOnlyChanged event. |
| **radioButton**  | [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md) | The radio button to attach the event handler to.                                                                                                 |
| **action**       | [Action\<TRadioButton>](https://docs.microsoft.com/dotnet/api/system.action-1)             | An action to execute when the read-only state changes.                                                                                           |

**Returns:** [TRadioButton](/api/wisej.web.markup/extensions/wisej.web.markup.radiobuttonextensions.md). The modified radio button with the attached ReadOnlyChanged event handler.

This method allows you to execute a custom action whenever the read-only state of the radio button changes.

```csharp

myRadioButton.OnReadOnlyChanged(rb =>
{
AlertBox.Show("Read-only state changed!");
});

```


---

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