# ICommand

Namespace: **Wisej.Web**

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

Defines a command that can be used for data binding.

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

```csharp
public interface ICommand
```

{% endtab %}

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

```visual-basic
Public Interface ICommand
```

{% endtab %}
{% endtabs %}

## Methods

### ![](/files/hsR4ok3152WyAf8J2C1u) CanExecute(args)

Defines a method that determines whether the command can execute in its current state.

| Parameter | Type                                                                | Description                                                                                                               |
| --------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------- |
| **args**  | [CommandArgs](/api/wisej.web/data-binding/wisej.web.commandargs.md) | A [CommandArgs](/api/wisej.web/data-binding/wisej.web.commandargs.md) that contains data that can be used by the command. |

**Returns:** [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean). true if this command can be executed; otherwise, false.

### ![](/files/hsR4ok3152WyAf8J2C1u) Execute(args)

Defines a method to be called when the command is invoked.

| Parameter | Type                                                                | Description                                                                                                               |
| --------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------- |
| **args**  | [CommandArgs](/api/wisej.web/data-binding/wisej.web.commandargs.md) | A [CommandArgs](/api/wisej.web/data-binding/wisej.web.commandargs.md) that contains data that can be used by the command. |

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

Fires the [CanExecuteChanged](#canexecutechanged) event.

## Events

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

[EventHandler](https://docs.microsoft.com/dotnet/api/system.eventhandler) Fired when changes occur that affect whether or not the command should execute.

## Implemented By

| Name                                                                                     | Description                                                                                                                   |
| ---------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- |
| [Command](/api/wisej.web/data-binding/wisej.web.command.md)                              | Implements the [ICommand](/api/wisej.web/interfaces/wisej.web.icommand.md) interface wrapping execute and canExecute actions. |
| [Command\<T>](/api/wisej.web/data-binding/wisej.web.command-less-than-t-greater-than.md) | Implements the [ICommand](/api/wisej.web/interfaces/wisej.web.icommand.md) interface wrapping execute and canExecute actions. |


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