# Mvc

This part provides methods for working with ViewEngine and other common MVC stuff.

## AjaxAttribute

`AjaxAttribute` allows to block non-ajax requests to marked controllers or actions.

## Controller extensions

| Method name            | Return type    | Description                                  |
| ---------------------- | -------------- | -------------------------------------------- |
| RenderPartialViewAsync | `Task<string>` | Renders a partial view using provided model. |
| RenderViewAsync        | `Task<string>` | Renders a view using provided model.         |

Sample usage is provided below:

```csharp
public async Task<IActionResult> DoSomething(int id, string name)
{
    var model = new CustomViewModel { Id = id, Name = name };
    var result = await this.RenderPartialViewAsync("_CustomPartialView", model);
    return Content(result); // This returns string with rendered partial view.
}
```

## ITempDataDictionary extensions

This extension methods help to work with `ITempDataDictionary`:

| Method name | Return type | Description                                                                                                        |
| ----------- | ----------- | ------------------------------------------------------------------------------------------------------------------ |
| Put         | `void`      | Places a specified object in current `ITempDataDictionary` serializing it. Overwrites an existing value if needed. |
| Peek        | `T`         | Get object for specified key from current `ITempDataDictionary`.                                                   |