ts-basic-components-search.md

#  Search

The **\<Search>** component provides an area for users to enter search queries.

> **NOTE**
>
> This component is supported since API version 8. Updates will be marked with a superscript to indicate their earliest API version.

## Child Components

Not supported

## APIs

Search(options?: { value?: string; placeholder?: ResourceStr; icon?: string; controller?: SearchController })

**Parameters**

| Name     | Type        | Mandatory| Description                                                    |
| ----------- | ---------------- | ---- | ------------------------------------------------------------ |
| value       | string           | No  | Text input in the search text box.                                |
| placeholder | [ResourceStr](ts-types.md#resourcestr)<sup>10+</sup> | No  | Text displayed when there is no input.                                    |
| icon        | string           | No  | Path to the search icon. By default, the system search icon is used. The supported icon formats are .svg, .jpg, and .png.|
| controller  | SearchController | No  | Controller of the **\<Search>** component.                                                    |

## Attributes

In addition to the [universal attributes](ts-universal-attributes-size.md), the following attributes are supported.

| Name                   | Type                                        | Description                                          |
| ----------------------- | ------------------------------------------------ | ---------------------------------------------- |
| searchButton<sup>10+</sup> | value: string,<br>option?: [SearchButtonOption](#searchbuttonoption10)              | Text on the search button located next to the search text box. By default, there is no search button.              |
| placeholderColor        | [ResourceColor](ts-types.md#resourcecolor)       | Placeholder text color.                          |
| placeholderFont         | [Font](ts-types.md#font)                         | Placeholder text font.                          |
| textFont                | [Font](ts-types.md#font)                         | Text font for the search text box.                              |
| textAlign               | [TextAlign](ts-appendix-enums.md#textalign)      | Text alignment mode in the search text box.<br>Default value: **TextAlign.Start**   |
| copyOption<sup>9+</sup> | [CopyOptions](ts-appendix-enums.md#copyoptions9) | Whether copy and paste is allowed.                            |
| searchIcon<sup>10+</sup>   | [IconOptions](#iconoptions10)                                                  | Style of the search icon on the left.                                      |
| cancelButton<sup>10+</sup> | {<br>style? : [CancelButtonStyle](#cancelbuttonstyle10)<br>icon?: [IconOptions](#iconoptions10) <br>} | Style of the Cancel button on the right.                                      |
| fontColor<sup>10+</sup>    | [ResourceColor](ts-types.md#resourcecolor)                   | Font color of the input text.                                   |
| caretStyle<sup>10+</sup>  | [CaretStyle](#caretstyle10)                                                  | Caret style.                                              |

## IconOptions<sup>10+</sup>

| Name| Type                                  | Mandatory| Description   |
| ------ | ------------------------------------------ | ---- | ----------- |
| size   | [Length](ts-types.md#length)               | No  | Icon size.   |
| color  | [ResourceColor](ts-types.md#resourcecolor) | No  | Icon color.   |
| src    | [ResourceStr](ts-types.md#resourcestr)     | No  | Image source of the icon.|

## CaretStyle<sup>10+</sup>

| Name| Type                                  | Mandatory| Description|
| ------ | ------------------------------------------ | ---- | -------- |
| width  | [Length](ts-types.md#length)               | No  | Caret width.|
| color  | [ResourceColor](ts-types.md#resourcecolor) | No  | Caret color.|

## SearchButtonOption<sup>10+</sup>

| Name   | Type                                  | Mandatory| Description        |
| --------- | ------------------------------------------ | ---- | ---------------- |
| fontSize  | [Length](ts-types.md#length)               | No  | Font size of the button.|
| fontColor | [ResourceColor](ts-types.md#resourcecolor) | No  | Font color of the button.|

## CancelButtonStyle<sup>10+</sup>

| Name                   | Description            |
| ----------------------- | ---------------- |
| CONSTANT<sup>10+</sup>  | The Cancel button is always displayed.|
| INVISIBLE<sup>10+</sup> | The Cancel button is always hidden.|
| INPUT<sup>10+</sup>     | The Cancel button is displayed when there is text input.|

## Events

In addition to the [universal events](ts-universal-events-click.md), the following events are supported.

| Name                                        | Description                                                  |
| ------------------------------------------- | ------------------------------------------------------------ |
| onSubmit(callback: (value: string) => void) | Invoked when users click the search icon or the search button, or touch the search button on a soft keyboard.<br> - **value**: current text input. |
| onChange(callback: (value: string) => void) | Invoked when the input in the text box changes.<br> - **value**: current text input. |
| onCopy(callback: (value: string) => void)   | Invoked when data is copied to the pasteboard, which is displayed when the search text box is long pressed.<br> - **value**: text copied. |
| onCut(callback: (value: string) => void)    | Invoked when data is cut from the pasteboard, which is displayed when the search text box is long pressed.<br> - **value**: text cut. |
| onPaste(callback: (value: string) => void)  | Invoked when data is pasted from the pasteboard, which is displayed when the search text box is long pressed.<br> -**value**: text pasted. |

## SearchController

Implements the controller of the **\<Search>** component. Currently, the controller can be used to control the caret position.

### Objects to Import
```
controller: SearchController = new SearchController()
```
### caretPosition

caretPosition(value: number): void

Sets the position of the caret.

**Parameters**

| Name| Type| Mandatory| Description                          |
| ------ | -------- | ---- | ---------------------------------- |
| value  | number   | Yes  | Length from the start of the character string to the position where the caret is located.|

##  Example

```ts
// xxx.ets
@Entry
@Component
struct SearchExample {
  @State changeValue: string = ''
  @State submitValue: string = ''
  controller: SearchController = new SearchController()

  build() {
    Column() {
      Text('onSubmit:' + this.submitValue).fontSize(18).margin(15)
      Text('onChange:' + this.changeValue).fontSize(18).margin(15)
      Search({ value: this.changeValue, placeholder: 'Type to search...', controller: this.controller })
        .searchButton('SEARCH')
        .width(400)
        .height(40)
        .backgroundColor('#F5F5F5')
        .placeholderColor(Color.Grey)
        .placeholderFont({ size: 14, weight: 400 })
        .textFont({ size: 14, weight: 400 })
        .onSubmit((value: string) => {
          this.submitValue = value
        })
        .onChange((value: string) => {
          this.changeValue = value
        })
        .margin(20)
      Button('Set caretPosition 1')
        .onClick(() => {
          // Move the caret to after the first entered character.
          this.controller.caretPosition(1)
        })
    }.width('100%')
  }
}
```

![search](figures/search.gif)