# AlertBox
Namespace: **Wisej.Web**
Assembly: **Wisej.Framework** (4.0.0.0)
* [Component](https://docs.wisej.com/api/wisej.base/general/wisej.base.component)
* [AlertBox](https://docs.wisej.com/api/wisej.web/notifications/alertbox)
Displays an alert box that can contain an icon and text that inform and instruct the user. Alert boxes are not modal and can disappear automatically.
{% tabs %}
{% tab title="C#" %}
```csharp
public class AlertBox : Component
```
{% endtab %}
{% tab title="VB.NET" %}
```visual-basic
Public Class AlertBox
Inherits Component
```
{% endtab %}
{% endtabs %}
## Methods
###  OnAddReferences(list)
Returns a collection of referenced components or collection of components.
| Parameter | Type | Description |
| --------- | ----------------------------------------------------------------------- | ---------------------------------------------------------- |
| **list** | [IList](https://docs.microsoft.com/dotnet/api/system.collections.ilist) | List of referenced components or collection of components. |
###  OnWebRender(config)
Renders the client component.
| Parameter | Type | Description |
| ---------- | ------------------------------------------------------------- | ----------------------------- |
| **config** | [Object](https://docs.microsoft.com/dotnet/api/system.object) | Dynamic configuration object. |
###  Show(text, icon, showCloseButton, alignment, autoCloseDelay, onclose, showProgressBar, allowHtml)
Displays an alert box with the specified text and icon in the specified position.
| Parameter | Type | Description |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **text** | [String](https://docs.microsoft.com/dotnet/api/system.string) | The text to display in the message box. Newlines (CRLF) are converted to \
when the text doesn't contain any html. |
| **icon**  | [MessageBoxIcon](https://docs.wisej.com/api/wisej.web/notifications/alertbox/wisej.web.messageboxicon) | One of the [MessageBoxIcon](https://docs.wisej.com/api/wisej.web/notifications/alertbox/wisej.web.messageboxicon) values that specifies which icon to display in the message box. |
| **showCloseButton**  | [Nullable\](https://docs.microsoft.com/dotnet/api/system.nullable-1) | Shows or hides the close button. If not set it's managed automatically. |
| **alignment**  | [ContentAlignment](https://docs.microsoft.com/dotnet/api/system.drawing.contentalignment) | One of the [ContentAlignment](https://docs.microsoft.com/dotnet/api/system.drawing.contentalignment) values that specifies where on the screen to display the alert box. |
| **autoCloseDelay**  | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | A value in milliseconds that determines the delay after which the alert box disappears automatically. The default is 5000 (5 seconds). If set to 0 the box stays open. |
| **onclose**  | [Action](https://docs.microsoft.com/dotnet/api/system.action) | Optional async handler for the close event; called when the Alert Box is closed either automatically or by the user. |
| **showProgressBar**  | [Nullable\](https://docs.microsoft.com/dotnet/api/system.nullable-1) | Shows a progress bar to display the time remaining until the alert box is automatically closed. If left null, it's managed by the theme. |
| **allowHtml**  | [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean) | Allows the message text to include HTML code. |
## Implements
| Name | Description |
| ---------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- |
| [IUserData](https://docs.wisej.com/api/wisej.web/interfaces/wisej.web.iuserdata) | Provides access to the `UserData` and `Tag` properties associated to the component implementing this interface. |
| [IWisejComponent](https://docs.wisej.com/api/wisej.core/interfaces/wisej.core.iwisejcomponent) | All wisej components implement this interface. |
| [IWisejSerializable](https://docs.wisej.com/api/wisej.core/interfaces/wisej.core.iwisejserializable) | Allows an object to serialize itself. |