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https://github.com/Trixwell/data-grid


https://github.com/Trixwell/data-grid

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# NgxDataGrid

## Overview

**NgxDataGridx** is a Angular component that renders data in a highly customizable and interactive data table. It supports features such as filtering, sorting, pagination, CSV export, expandable sub-grids, and integration with Angular Material components.

---

## Installation

To use `NgxDataGridx`, ensure you have Angular and Angular Material installed. Then, import the component into your module:

📦 NPM Package:
https://www.npmjs.com/package/@trixwell/ngx-data-gridx

```bash
npm install ngx-data-gridx
```

### Required peer dependencies:

```bash
npm install @angular/material @angular/forms @angular/common rxjs
```

**In your `app.module.ts`:**

```ts
import { NgxDataGridx } from 'ngx-data-gridx';

@NgModule({
declarations: [AppComponent],
imports: [NgxDataGridx],
bootstrap: [AppComponent],
})
export class AppModule {}
```

---

## Inputs (`@Input`)

| Name | Type | Description |
| -------------------- | --------------------------------------------- |--------------------------------------------------------|
| `url` | `string` | API endpoint to load data from. |
| `exportCsvUrl` | `string` | URL to export the current filtered data in CSV format. |
| `data` | `GridProperty[]` | Configuration for grid columns. |
| `limit` | `number` | Number of rows per page. |
| `sort` | `string` | Sort direction: `asc` or `desc`. |
| `sidx` | `string` | Field name to sort by. |
| `grid_name` | `string` | Unique identifier for the grid. |
| `multiselect` | `boolean` | Enables row multi-selection. |
| `showFilters` | `boolean` | Toggle filter visibility. |
| `subUrlParams` | `{ paramName: string; columnName: string }[]` | Parameters to pass to sub-grid requests. |
| `currentRow` | `object` | Parent row context for sub-grid data. |
| `showHistoryFilters` | `boolean` | Display history of applied filters. |
| `expandedElement` | `object` | Row currently expanded to show sub-grid. |
| `noDataPlaceholder` | `string` | Message to display when no data is found. |
| `parentGridFilters` | `object` | Filters from a parent grid to apply in a sub-grid context. |

---

## Key Methods

* `loadData(page, limit)` — Fetches data from `url` with filters, sorting, and pagination applied.
* `onFilterChange(column, type, label, value)` — Applies a filter to a column.
* `onDateRangeChange(column, formGroup)` — Applies date range filtering.
* `clearAllFilters()` — Resets all applied filters.
* `exportCsvAction()` — Initiates export of filtered data to CSV.
* `setCurrentGridColumn(column, row)` — Toggles sub-grid view for a row.

---

## Template Structure

* **Filter Controls**: Positioned above the table; supports input search, select, checkbox, and date-range.
* **Table Body**: Built with ``. Each column is defined using `matColumnDef`. Rows are populated using `MatTableDataSource`.
* **Expandable Rows**: Sub-grids can be rendered by expanding a row.
* **Actions**: Built-in buttons for filtering, clearing, and exporting.

Uses Angular Material components: `mat-table`, `mat-paginator`, `mat-form-field`, `mat-select`, `mat-checkbox`, `mat-icon`, `mat-progress-bar`, `mat-date-range-input`, etc.

---

## Animations & Interactions

* **Row Expansion**: Smooth expansion/collapse using Angular animations (`@detailExpand`).
* **Filtering**: Debounced reactive search using `Subject` + `debounceTime` for responsive UX.
* **Multi-select**: Row selection via `mat-checkbox`.
* **CSV Export**: Filtered results can be exported with one click.

---

## Example Usage

### Component Setup

```ts
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
})
export class AppComponent {
apiUrl = '/api/items';
columnConfig: GridProperty[] = [
new GridProperty({
name: 'id',
displayName: 'ID',
type: GridPropertyType.Number,
sort: true,
}),
new GridProperty({
name: 'title',
displayName: 'Title',
type: GridPropertyType.Text,
search: true,
}),
new GridProperty({
name: 'category',
displayName: 'Category',
type: GridPropertyType.Text,
filter: [
{ label: 'Category', type: 'select' },
],
filterValues: [[
{ label: 'Books', value: 'books' },
{ label: 'Music', value: 'music' },
]],
}),
new GridProperty({
name: 'created_at',
displayName: 'Created',
type: GridPropertyType.Date,
filter: [
{ label: 'Date range', type: 'date' },
]
}),
new GridProperty({
name: 'details',
displayName: 'Details',
type: GridPropertyType.Text,
ident: true,
subGridSettings: new SubGridSettings({
suburl: '/api/items/details',
subUrlParams: [{ paramName: 'item_id', columnName: 'id' }],
subGridProps: {
multiselect: false,
limit: 5,
search: true,
showFilters: true
}
}),
subGridPropertyList: [
new GridProperty({
name: 'detail_id',
displayName: 'Detail ID',
type: GridPropertyType.Number
}),
new GridProperty({
name: 'description',
displayName: 'Description',
type: GridPropertyType.Text
})
]
})
];
}
```

### Template

```html

```

---