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# MediaQuery
## Description
A component to easily use predefined bit BlazorUI media queries in Blazor components.
## Parameters
| Name | Type | Default Value | Description |
| :--- | :--- | :------------ | :---------- |
| ChildContent | `RenderFragment?` | null | The content of the element to render if the specified query is matched. |
| Matched | `RenderFragment?` | null | The content to be rendered if the provided query is matched (an alias for ChildContent). |
| NotMatched | `RenderFragment?` | null | The content to be rendered if the provided query is not matched. |
| OnChange | `EventCallback<bool>` | | The event callback to be called when the state of the media query has been changed. |
| Query | `string?` | null | Specifies the custom query to be matched. |
| ScreenQuery | `BitScreenQuery?` | null | Defines the screen query to be matched, amongst the predefined Bit screen media queries. |
| AriaLabel | `string?` | null | Gets or sets the accessible label for the component, used by assistive technologies. |
| Class | `string?` | null | Gets or sets the CSS class name(s) to apply to the rendered element. |
| Dir | `BitDir?` | null | Gets or sets the text directionality for the component's content. |
| ForceAnimation | `bool` | false | Gets or sets a value indicating whether the component's animations play at their full duration even when reduced motion is requested. |
| HtmlAttributes | `Dictionary<string, object>` | new Dictionary<string, object>() | Captures additional HTML attributes to be applied to the rendered element, in addition to the component's parameters. |
| Id | `string?` | null | Gets or sets the unique identifier for the component's root element. |
| IsEnabled | `bool` | true | Gets or sets a value indicating whether the component is enabled and can respond to user interaction. |
| Style | `string?` | null | Gets or sets the CSS style string to apply to the rendered element. |
| TabIndex | `string?` | null | Gets or sets the tab order index for the component when navigating with the keyboard. |
| Visibility | `BitVisibility` | BitVisibility.Visible | Gets or sets the visibility state (visible, hidden, or collapsed) of the component. |
## Public Members
| Name | Type | Default Value | Description |
| :--- | :--- | :------------ | :---------- |
| UniqueId | `Guid` | Guid.NewGuid() | Gets the readonly unique identifier for the component's root element, assigned when the component instance is constructed. |
| RootElement | `ElementReference` | | Gets the reference to the root HTML element associated with this component. |
## Enums
### BitScreenQuery Enum
| Name | Value | Description |
| :--- | :--- | :---------- |
| Xs | 0 | Extra small query: [@media screen and (max-width: 600px)] |
| Sm | 1 | Small query: [@media screen and (min-width: 601px) and (max-width: 960px)] |
| Md | 2 | Medium query: [@media screen and (min-width: 961px) and (max-width: 1280px)] |
| Lg | 3 | Large query: [@media screen and (min-width: 1281px) and (max-width: 1920px)] |
| Xl | 4 | Extra large query: [@media screen and (min-width: 1921px) and (max-width: 2560px)] |
| Xxl | 5 | Extra extra large query: [@media screen and (min-width: 2561px)] |
| LtSm | 6 | Less than small query: [@media screen and (max-width: 600px)] |
| LtMd | 7 | Less than medium query: [@media screen and (max-width: 960px)] |
| LtLg | 8 | Less than large query: [@media screen and (max-width: 1280px)] |
| LtXl | 9 | Less than extra large query: [@media screen and (max-width: 1920px)] |
| LtXxl | 10 | Less than extra extra large query: [@media screen and (max-width: 2560px)] |
| GtXs | 11 | Greater than extra small query: [@media screen and (min-width: 601px)] |
| GtSm | 12 | Greater than extra small query: [@media screen and (min-width: 601px)] |
| GtMd | 13 | Greater than medium query: [@media screen and (min-width: 1281px)] |
| GtLg | 14 | Greater than large query: [@media screen and (min-width: 1921px)] |
| GtXl | 15 | Greater than extra large query: [@media screen and (min-width: 2561px)] |
### BitVisibility Enum
| Name | Value | Description |
| :--- | :--- | :---------- |
| Visible | 0 | The content of the component is visible. |
| Hidden | 1 | The content of the component is hidden, but the space it takes on the page remains (visibility:hidden). |
| Collapsed | 2 | The component is hidden (display:none). |
### BitDir Enum
| Name | Value | Description |
| :--- | :--- | :---------- |
| Ltr | 0 | Ltr (left to right) is to be used for languages that are written from the left to the right (like English). |
| Rtl | 1 | Rtl (right to left) is to be used for languages that are written from the right to the left (like Arabic). |
| Auto | 2 | Auto lets the user agent decide. It uses a basic algorithm as it parses the characters inside the element until it finds a character with a strong directionality, then applies that directionality to the whole element. |
## Examples
\n**Basic**:
```razor
This is Xs (Extra Small).
This is Sm (Small).
This is Md (Medium).
This is Lg (Large).
This is Xl (Extra Large).
This is Xxl (Extra Extra Large).
This is LtSm (Less Than Small).
This is LtMd (Less Than Medium).
This is LtLg (Less Than Large).
This is LtXl (Less Than Extra Large).
This is LtXxl (Less Than Extra Extra Large).
This is GtXs (Greater Than Extra Small).
This is GtSm (Greater Than Small).
This is GtMd (Greater Than Medium).
This is GtLg (Greater Than Large).
This is GtXl (Greater Than Extra Large).
```
\n**Matched & NotMatched**:
```razor
This is Matched (BitScreenQuery.Md).
[BitScreenQuery.Md] NotMatched!.
```
\n**Custom query**:
```razor
This is screen and (max-width: 999px).
Not matched yet!
```
\n**OnChange**:
```razor
[BitScreenQuery.Md] IsMatched?: @isMatched
```
```csharp
private bool isMatched;
```