> For the complete documentation index, see [llms.txt](https://docs.wisej.com/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wisej.com/api/wisej.core/general/wisej.core.browserstorage.md).

# BrowserStorage

Namespace: **Wisej.Core**

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

Represents the browser's storage objects.

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

```csharp
public class BrowserStorage : IWisejSynchronized
```

{% endtab %}

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

```visual-basic
Public Class BrowserStorage
    Inherits IWisejSynchronized
```

{% endtab %}
{% endtabs %}

## Methods

### ![](/files/hsR4ok3152WyAf8J2C1u) Clear()

Removes all the values from the browser's storage.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetKeys(callback)

Returns all the keys in the browser's storage.

| Parameter    | Type                                                                         | Description                                                 |
| ------------ | ---------------------------------------------------------------------------- | ----------------------------------------------------------- |
| **callback** | [Action\<String\[\]>](https://docs.microsoft.com/dotnet/api/system.action-1) | Callback method that receives each key name asynchronously. |

### ![](/files/hsR4ok3152WyAf8J2C1u) GetKeysAsync()

Asynchronously returns all the keys in the browser's storage.

**Returns:** [Task\<String\[\]>](https://docs.microsoft.com/dotnet/api/system.threading.tasks.task-1). An awaitable [Task](https://docs.microsoft.com/dotnet/api/system.threading.tasks.task) that represents the asynchronous operation.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetValue\<T>(key, callback)

Returns the value stored in the browser's storage associated with the specified *key* .

| Parameter    | Type                                                                | Description                                             |
| ------------ | ------------------------------------------------------------------- | ------------------------------------------------------- |
| **T**        |                                                                     | Type of the value to retrieve.                          |
| **key**      | [String](https://docs.microsoft.com/dotnet/api/system.string)       | Key associated with the value to retrieve.              |
| **callback** | [Action\<T>](https://docs.microsoft.com/dotnet/api/system.action-1) | Callback method that receives the value asynchronously. |

This method returns the value asynchronously because it waits for the browser to respond.

```csharp

Application.LocalStorage.GetValue<string>("userName", (value) => {
  if (value != null)
    AlertBox.Show($"Welcome back, {value}");
});

```

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)\
  The *key* is null or empty, or *callback* is null.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetValueAsync\<T>(key)

Asynchronously returns the value stored in the browser's storage associated with the specified *key* .

| Parameter | Type                                                          | Description                                |
| --------- | ------------------------------------------------------------- | ------------------------------------------ |
| **T**     |                                                               | Type of the value to retrieve.             |
| **key**   | [String](https://docs.microsoft.com/dotnet/api/system.string) | Kay associated with the value to retrieve. |

**Returns:** [Task\<T>](https://docs.microsoft.com/dotnet/api/system.threading.tasks.task-1). An awaitable [Task](https://docs.microsoft.com/dotnet/api/system.threading.tasks.task-1) that represents the asynchronous operation.

### ![](/files/hsR4ok3152WyAf8J2C1u) RemoveValue(key)

Removes the value associated with the *key* from the browser's storage.

| Parameter | Type                                                          | Description                             |
| --------- | ------------------------------------------------------------- | --------------------------------------- |
| **key**   | [String](https://docs.microsoft.com/dotnet/api/system.string) | Kay associate with the value to remove. |

### ![](/files/hsR4ok3152WyAf8J2C1u) SetValue\<T>(key, value)

Stores the specified *value* in the browser's storage.

| Parameter | Type                                                          | Description                              |
| --------- | ------------------------------------------------------------- | ---------------------------------------- |
| **T**     |                                                               | Type of the value to store.              |
| **key**   | [String](https://docs.microsoft.com/dotnet/api/system.string) | Key associated with the value.           |
| **value** | [T](/api/wisej.core/general/wisej.core.browserstorage.md)     | Value to store in the browser's storage. |

## Inherited By

| Name                                                                   | Description                                                                                                                            |
| ---------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| [LocalStorage](/api/wisej.core/general/wisej.core.localstorage.md)     | Represents the browser's localStorage. Use this class through the [Browser](/api/wisej.web/general/application.md#browser) instance.   |
| [SessionStorage](/api/wisej.core/general/wisej.core.sessionstorage.md) | Represents the browser's localStorage. Use this class through the [Browser](/api/wisej.web/general/application.md#browser) instance.   |
| [CookieStorage](/api/wisej.core/general/wisej.core.cookiestorage.md)   | Represents the browser's cookie storage. Use this class through the [Browser](/api/wisej.web/general/application.md#browser) instance. |


---

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