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Updated documentation + code of the ListItemPicker
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‎docs/documentation/docs/controls/ListItemPicker.md

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# ListItemPicker control
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This control allows you to select one or more item from list, based in a column value, the control suggest values based on characters typed
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This control allows you to select one or more items from a list. The item selection is based from a column value. The control will suggest items based on the inserted value.
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Here is an example of the control:
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- Import the control into your component:
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```TypeScript
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import { ListItemPicker } from '@pnp/spfx-controls-react/listItemPicker';
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```
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- Use the `ListItemPicker` control in your code as follows:
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```TypeScript
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<ListItemPicker
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listId='da8daf15-d84f-4ab1-9800-7568f82fed3f'
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columnInternalName='Title'
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itemLimit={2}
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onSelectedItem={this.onSelectedItem}
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context={this.props.context}
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/>
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<ListItemPicker listId='da8daf15-d84f-4ab1-9800-7568f82fed3f'
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columnInternalName='Title'
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itemLimit={2}
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onSelectedItem={this.onSelectedItem}
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context={this.props.context} />
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```
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- The `onSelectedItem` change event returns the list items selected and can be implemented as follows:
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```TypeScript
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private onSelectedItem(data: { key: string; name: string }[]) {
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for (const item of data) {
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console.log(`Item value: ${item.name}`);
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}
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for (const item of data) {
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console.log(`Item value: ${item.name}`);
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}
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}
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```
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## Implementation
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The `ListItemPicker` control can be configured with the following properties:
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<table style="width: 100%; height: 786px;">
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<tbody>
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<tr>
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<th style="width: 220px;">Property</th>
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<th>Type</th>
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<th style="width: 85px;">Required</th>
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<th>Description</th>
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</tr>
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<tr>
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<td>listId</td>
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<td>string</td>
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<td>yes</td>
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<td>Gui of List</td>
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</tr>
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<tr>
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<td>columnInternalName</td>
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<td>string</td>
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<td>yes</td>
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<td>InternalName of column to search and get values</td>
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</tr>
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<tr>
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<td>onSelectedItem: (item:any) =>void;</td>
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<td>function</td>
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<td>yes</td>
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<td>Callback function</td>
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</tr>
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<tr>
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<td>className</td>
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<td>string</td>
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<td>no</td>
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<td>CSS className</td>
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</tr>
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<tr>
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<td>webUrl</td>
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<td>string</td>
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<td>no</td>
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<td>URL of site if different of current site, user must have permissions</td>
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</tr>
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<tr>
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<td>value</td>
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<td>Array</td>
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<td>no</td>
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<td>Default Value</td>
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</tr>
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<tr>
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<td>disabled</td>
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<td>Boolean</td>
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<td>no</td>
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<td>Disable Control</td>
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</tr>
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<tr>
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<td>itemLimit</td>
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<td>number</td>
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<td>yes</td>
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<td>Number os items to select / return</td>
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</tr>
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<tr>
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<td>context</td>
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<td>WebPartContext|ApplicationCustomizerContext</td>
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<td>yes</td>
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<td>WebPart or Application customiser context</td>
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</tr>
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<tr>
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<td>sugestedHeaderText</td>
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<td>string</td>
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<td>no</td>
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<td>Text header to display</td>
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</tr>
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<tr>
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<td>noresultsFoundTextstring</td>
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<td>string</td>
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<td>no</td>
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<td>Text message when no items</td>
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</tr>
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</tbody>
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</table>
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| Property | Type | Required | Description |
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| ---- | ---- | ---- | ---- |
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| columnInternalName | string | yes | InternalName of column to search and get values. |
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| context | WebPartContext \| ApplicationCustomizerContext | yes | SPFx web part or extention context |
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| listId | string | yes | Guid of the list. |
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| itemLimit | number | yes | Number of items which can be selected |
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| onSelectItem | (items: any[]) => void | yes | Callback function which returns the selected items. |
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| className | string | no | ClassName for the picker. |
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| webUrl | string | no | URL of the site. By default it uses the current site URL. |
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| defaultSelectedItems | any[] | no | Initial items that have already been selected and should appear in the people picker. |
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| suggestionsHeaderText | string | no | The text that should appear at the top of the suggestion box. |
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| noResultsFoundText | string | no | The text that should appear when no results are returned. |
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| disabled | boolean | no | Specifies if the control is disabled or not. |
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![](https://telemetry.sharepointpnp.com/sp-dev-fx-controls-react/wiki/controls/ListItemPicker)

‎src/controls/listItemPicker/IListItemPickerProps.ts

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import { ApplicationCustomizerContext } from "@microsoft/sp-application-base";
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export interface IListItemPickerProps {
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columnInternalName: string;
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context: WebPartContext | ApplicationCustomizerContext;
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listId: string;
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columnInternalName:string;
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onSelectedItem: (item:any) => void;
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itemLimit: number;
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className?: string;
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webUrl?:string;
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value?:Array<string>;
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webUrl?: string;
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defaultSelectedItems?: any[];
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disabled?: boolean;
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itemLimit: number;
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context: WebPartContext | ApplicationCustomizerContext;
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sugestedHeaderText?:string;
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noresultsFoundText?:string;
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suggestionsHeaderText?:string;
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noResultsFoundText?:string;
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onSelectedItem: (item:any) => void;
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}

‎src/controls/listItemPicker/ListItemPicker.tsx

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export class ListItemPicker extends React.Component<IListItemPickerProps, IListItemPickerState> {
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private _value: any[];
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private _spservice: SPservice;
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private selectedItems: any[];
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// States
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this.state = {
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noresultsFoundText: !this.props.noresultsFoundText ? strings.genericNoResultsFoundText : this.props.noresultsFoundText,
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noresultsFoundText: !this.props.noResultsFoundText ? strings.genericNoResultsFoundText : this.props.noResultsFoundText,
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showError: false,
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errorMessage: "",
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suggestionsHeaderText: !this.props.sugestedHeaderText ? strings.ListItemPickerSelectValue : this.props.sugestedHeaderText
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suggestionsHeaderText: !this.props.suggestionsHeaderText ? strings.ListItemPickerSelectValue : this.props.suggestionsHeaderText
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};
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// Get SPService Factory
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this._spservice = new SPservice(this.props.context);
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// Test Parameters
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this._value = this.props.value !== undefined ? this.props.value : [];
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this.selectedItems = [];
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}
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suggestionsHeaderText: this.state.suggestionsHeaderText,
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noResultsFoundText: this.state.noresultsFoundText
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}}
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defaultSelectedItems={this._value}
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defaultSelectedItems={this.props.defaultSelectedItems || []}
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onChange={this.onItemChanged}
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className={className}
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itemLimit={itemLimit}

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